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The following commit(s) were added to refs/heads/main by this push:
     new 4fe6a9272a32 camel-core - Simple language rename empty to newEmpty to 
not confuse this with isEmpty function
4fe6a9272a32 is described below

commit 4fe6a9272a32e3971e0baca30789d6be573b95bd
Author: Claus Ibsen <[email protected]>
AuthorDate: Wed Jan 21 11:00:54 2026 +0100

    camel-core - Simple language rename empty to newEmpty to not confuse this 
with isEmpty function
---
 .../org/apache/camel/catalog/languages/simple.json | 71 +++++++++++-----------
 .../language/csimple/joor/OriginalSimpleTest.java  | 15 +++--
 .../org/apache/camel/language/simple/simple.json   | 71 +++++++++++-----------
 .../modules/languages/pages/simple-language.adoc   |  5 +-
 .../camel/language/csimple/CSimpleHelper.java      |  6 +-
 .../camel/language/simple/SimpleConstants.java     |  7 ++-
 .../language/simple/SimpleExpressionBuilder.java   |  2 +
 .../simple/ast/SimpleFunctionExpression.java       | 23 ++++++-
 .../apache/camel/language/simple/SimpleTest.java   | 15 +++--
 9 files changed, 128 insertions(+), 87 deletions(-)

diff --git 
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/languages/simple.json
 
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/languages/simple.json
index 88730ad5a56f..1044b4db7c32 100644
--- 
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/languages/simple.json
+++ 
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/languages/simple.json
@@ -50,7 +50,7 @@
     "date(command)": { "index": 24, "kind": "function", "displayName": "Parse 
Date", "group": "function", "label": "function", "required": false, "javaType": 
"java.util.Date", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Evaluates to a 
java.util.Date object. Supported commands are: `now` for current timestamp, 
`exchangeCreated` for the timestamp when the current exchange was created, 
`header.xxx` to use the Long\/Date ob [...]
     "date-with-timezone(command:timezone:pattern)": { "index": 25, "kind": 
"function", "displayName": "Date Formatter", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Formats the date to a String using the given date 
pattern, and with support for timezone. Supported commands are: `now` for 
current timestamp, `exchangeCreated` for the timesta [...]
     "distinct(val...)": { "index": 26, "kind": "function", "displayName": 
"Distinct Values", "group": "function", "label": "function", "required": false, 
"javaType": "long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a set of all the 
values with duplicates removed", "ognl": false, "suffix": "}" },
-    "empty(type)": { "index": 27, "kind": "function", "displayName": "Create 
Empty Object", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Creates a new empty 
object (decided by type). Use `string` to create an empty String. Use `list` to 
create an empty `java.util.ArrayList`. Use `map` to create an empty 
`java.util.LinkedHashMap`.", "ognl": [...]
+    "empty(type)": { "index": 27, "kind": "function", "displayName": "Create 
Empty Object", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": true, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Creates a new empty 
object (decided by type). Use `string` to create an empty String. Use `list` to 
create an empty `java.util.ArrayList`. Use `map` to create an empty 
`java.util.LinkedHashMap`. Use `set`  [...]
     "env.name": { "index": 28, "kind": "function", "displayName": "OS 
Environment Variable", "group": "function", "label": "function", "required": 
false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
OS environment variable with the given name", "ognl": false, "suffix": "}" },
     "exchange": { "index": 29, "kind": "function", "displayName": "Exchange", 
"group": "function", "label": "function", "required": false, "javaType": 
"org.apache.camel.Exchange", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
current exchange", "ognl": true, "suffix": "}" },
     "exchangeId": { "index": 30, "kind": "function", "displayName": "Exchange 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The exchange id", "ognl": 
false, "suffix": "}" },
@@ -84,39 +84,40 @@
     "messageHistory(boolean)": { "index": 58, "kind": "function", 
"displayName": "Print Message History", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The message history of the current exchange (how it has 
been routed). This is similar to the route stack-trace message history the 
error handler logs in case of an unhandled exception. The b [...]
     "messageTimestamp": { "index": 59, "kind": "function", "displayName": 
"Message Timestamp", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
message timestamp (millis since epoc) that this message originates from. Some 
systems like JMS, Kafka, AWS have a timestamp on the event\/message that Camel 
received. This method returns the timestam [...]
     "min(val...)": { "index": 60, "kind": "function", "displayName": "Minimum 
Number", "group": "function", "label": "function", "required": false, 
"javaType": "long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the minimum number 
from all the values", "ognl": false, "suffix": "}" },
-    "null": { "index": 61, "kind": "function", "displayName": "Null", "group": 
"function", "label": "function", "required": false, "javaType": "Object", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "Represents a null value", "ognl": false, 
"suffix": "}" },
-    "originalBody": { "index": 62, "kind": "function", "displayName": 
"Original Body", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The original incoming 
body (only available if allowUseOriginalMessage=true).", "ognl": false, 
"suffix": "}" },
-    "pad(exp,width,separator)": { "index": 63, "kind": "function", 
"displayName": "Pad String", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Pads the expression with extra padding if necessary, according the the total 
width. The separator is by default a space. If the width is negative then 
padding to the right, otherwise to the left.", "o [...]
-    "pretty(exp)": { "index": 64, "kind": "function", "displayName": "Pretty 
Print", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the 
expression to a String, and attempts to pretty print if JSon or XML, otherwise 
the expression is returned as the String value.", "ognl": false, "suffix": "}" 
},
-    "prettyBody": { "index": 65, "kind": "function", "displayName": "Pretty 
Body", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Converts the body to a 
String, and attempts to pretty print if JSon or XML; otherwise the body is 
returned as the String value.", "ognl": false, "suffix": "}" },
-    "properties:key:default": { "index": 66, "kind": "function", 
"displayName": "Property Placeholder", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Lookup a property placeholder with the given key. If the 
key does not exist nor has a value, then an optional default value can be 
specified.", "ognl": false, "suffix": "}" },
-    "propertiesExist:key": { "index": 67, "kind": "function", "displayName": 
"Property Placeholder Exists", "group": "function", "label": "function", 
"required": false, "javaType": "boolean", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Checks whether a property placeholder with the given key exists or not. The 
result can be negated by prefixing the key with !", "ognl": false, "suffix": 
"}" },
-    "random(min,max)": { "index": 68, "kind": "function", "displayName": 
"Random", "group": "function", "label": "function", "required": false, 
"javaType": "int", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a random number 
between min and max (exclusive)", "ognl": false, "suffix": "}" },
-    "ref:name": { "index": 69, "kind": "function", "displayName": "Bean By 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"Object", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "To look up a bean from the 
Registry with the given name.", "ognl": false, "suffix": "}" },
-    "replace(from,to,exp)": { "index": 70, "kind": "function", "displayName": 
"Replace String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Replace all the string values in the message body\/expression. To make it 
easier to replace single and double quotes, then you can use XML escaped values 
`\\&quot;` as double quote, `\\&apos;`  [...]
-    "routeGroup": { "index": 71, "kind": "function", "displayName": "Route 
Group", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The route group of the 
current route the Exchange is being routed. Not all routes have a group 
assigned, so this may be null.", "ognl": false, "suffix": "}" },
-    "routeId": { "index": 72, "kind": "function", "displayName": "Route Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The route id of the 
current route the Exchange is being routed", "ognl": false, "suffix": "}" },
-    "setHeader(name,type,exp)": { "index": 73, "kind": "function", 
"displayName": "Set Header", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a message header with the given expression (optional converting to the 
given type)", "ognl": false, "suffix": "}" },
-    "setVariable(name,type,exp)": { "index": 74, "kind": "function", 
"displayName": "Set Variable", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a variable with the given expression (optional converting to the given 
type)", "ognl": false, "suffix": "}" },
-    "size(exp)": { "index": 75, "kind": "function", "displayName": "Size", 
"group": "function", "label": "function", "required": false, "javaType": "int", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "The size of the message body (or expression). 
If the payload is java.util.Collection or java.util.Map based then the size is 
the number of elements; otherwise the payload size in bytes.", "ognl": false, 
"suffix": "}" },
-    "skip(num)": { "index": 76, "kind": "function", "displayName": "Skip First 
Items from the Message Body", "group": "function", "label": "function", 
"required": false, "javaType": "java.util.Iterator", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The skip function iterates the message body and skips 
the first number of items. This can be used with the Splitter EIP to split a 
message body and skip the first N number of  [...]
-    "split(exp,separator)": { "index": 77, "kind": "function", "displayName": 
"Split String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String[]", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Splits the message body\/expression as a String value using the separator into 
a String array", "ognl": false, "suffix": "}" },
-    "stepId": { "index": 78, "kind": "function", "displayName": "Step Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current step the Exchange is being routed.", "ognl": false, "suffix": "}" },
-    "substring(head,tail)": { "index": 79, "kind": "function", "displayName": 
"Substring", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Returns a substring of 
the message body\/expression. If only one positive number, then the returned 
string is clipped from the beginning. If only one negative number, then the 
returned string is clipped fr [...]
-    "substringAfter(exp,before)": { "index": 80, "kind": "function", 
"displayName": "Substring After", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes after. Returns 
null if nothing comes after.", "ognl": false, "suffix": "}" },
-    "substringBefore(exp,before)": { "index": 81, "kind": "function", 
"displayName": "Substring Before", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes before. Returns 
null if nothing comes before.", "ognl": false, "suffix": "}" },
-    "substringBetween(exp,after,before)": { "index": 82, "kind": "function", 
"displayName": "Substring Between", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that are between after and 
before. Returns null if nothing comes between.", "ognl": false, "suffix": "}" },
-    "sum(val...)": { "index": 83, "kind": "function", "displayName": 
"Calculate Sum Number", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sums together all the values as integral numbers. This function can also be 
used to subtract by using negative numbers.", "ognl": false, "suffix": "}" },
-    "sys.name": { "index": 84, "kind": "function", "displayName": "JVM System 
Property", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The JVM system 
property with the given name", "ognl": false, "suffix": "}" },
-    "threadId": { "index": 85, "kind": "function", "displayName": "Thread Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
-    "threadName": { "index": 86, "kind": "function", "displayName": "Thread 
Name", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the name of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
-    "trim(exp)": { "index": 87, "kind": "function", "displayName": "Trim", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The trim function trims 
the message body (or expression) by removing all leading and trailing white 
spaces.", "ognl": false, "suffix": "}" },
-    "type:name.field": { "index": 88, "kind": "function", "displayName": "Java 
Field Value", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "To refer to a type or 
field by its classname. To refer to a field, you can append .FIELD_NAME. For 
example, you can refer to the constant field from Exchange as: 
`org.apache.camel.Exchange.FILE_NAME`", " [...]
-    "uppercase(exp)": { "index": 89, "kind": "function", "displayName": 
"Uppercase", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Uppercases the message 
body (or expression)", "ognl": false, "suffix": "}" },
-    "uuid(type)": { "index": 90, "kind": "function", "displayName": "Generate 
UUID", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a UUID using the 
Camel `UuidGenerator`. You can choose between `default`, `classic`, `short` and 
`simple` as the type. If no type is given, the default is used. It is also 
possible to use a custom `UuidG [...]
-    "variable.name": { "index": 91, "kind": "function", "displayName": 
"Variable", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The variable with the 
given name", "ognl": true, "suffix": "}" },
-    "variableAs(key,type)": { "index": 92, "kind": "function", "displayName": 
"Variable As", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the variable 
to the given type (classname).", "ognl": false, "suffix": "}" },
-    "variables": { "index": 93, "kind": "function", "displayName": 
"Variables", "group": "function", "label": "function", "required": false, 
"javaType": "java.util.Map", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns all the variables from the current Exchange in a Map", "ognl": false, 
"suffix": "}" },
-    "xpath(input,exp)": { "index": 94, "kind": "function", "displayName": 
"XPath", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "When working with XML 
data, then this allows using the XPath language, for example, to extract data 
from the message body (in XML format). This requires having camel-xpath JAR on 
the classpath. For input (optional [...]
+    "newEmpty(type)": { "index": 61, "kind": "function", "displayName": 
"Create Empty Object", "group": "function", "label": "function", "required": 
false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Creates a new empty object (decided by type). Use `string` to create an empty 
String. Use `list` to create an empty `java.util.ArrayList`. Use `map` to 
create an empty `java.util.LinkedHashMap`. Use `s [...]
+    "null": { "index": 62, "kind": "function", "displayName": "Null", "group": 
"function", "label": "function", "required": false, "javaType": "Object", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "Represents a null value", "ognl": false, 
"suffix": "}" },
+    "originalBody": { "index": 63, "kind": "function", "displayName": 
"Original Body", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The original incoming 
body (only available if allowUseOriginalMessage=true).", "ognl": false, 
"suffix": "}" },
+    "pad(exp,width,separator)": { "index": 64, "kind": "function", 
"displayName": "Pad String", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Pads the expression with extra padding if necessary, according the the total 
width. The separator is by default a space. If the width is negative then 
padding to the right, otherwise to the left.", "o [...]
+    "pretty(exp)": { "index": 65, "kind": "function", "displayName": "Pretty 
Print", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the 
expression to a String, and attempts to pretty print if JSon or XML, otherwise 
the expression is returned as the String value.", "ognl": false, "suffix": "}" 
},
+    "prettyBody": { "index": 66, "kind": "function", "displayName": "Pretty 
Body", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Converts the body to a 
String, and attempts to pretty print if JSon or XML; otherwise the body is 
returned as the String value.", "ognl": false, "suffix": "}" },
+    "properties:key:default": { "index": 67, "kind": "function", 
"displayName": "Property Placeholder", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Lookup a property placeholder with the given key. If the 
key does not exist nor has a value, then an optional default value can be 
specified.", "ognl": false, "suffix": "}" },
+    "propertiesExist:key": { "index": 68, "kind": "function", "displayName": 
"Property Placeholder Exists", "group": "function", "label": "function", 
"required": false, "javaType": "boolean", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Checks whether a property placeholder with the given key exists or not. The 
result can be negated by prefixing the key with !", "ognl": false, "suffix": 
"}" },
+    "random(min,max)": { "index": 69, "kind": "function", "displayName": 
"Random", "group": "function", "label": "function", "required": false, 
"javaType": "int", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a random number 
between min and max (exclusive)", "ognl": false, "suffix": "}" },
+    "ref:name": { "index": 70, "kind": "function", "displayName": "Bean By 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"Object", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "To look up a bean from the 
Registry with the given name.", "ognl": false, "suffix": "}" },
+    "replace(from,to,exp)": { "index": 71, "kind": "function", "displayName": 
"Replace String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Replace all the string values in the message body\/expression. To make it 
easier to replace single and double quotes, then you can use XML escaped values 
`\\&quot;` as double quote, `\\&apos;`  [...]
+    "routeGroup": { "index": 72, "kind": "function", "displayName": "Route 
Group", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The route group of the 
current route the Exchange is being routed. Not all routes have a group 
assigned, so this may be null.", "ognl": false, "suffix": "}" },
+    "routeId": { "index": 73, "kind": "function", "displayName": "Route Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The route id of the 
current route the Exchange is being routed", "ognl": false, "suffix": "}" },
+    "setHeader(name,type,exp)": { "index": 74, "kind": "function", 
"displayName": "Set Header", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a message header with the given expression (optional converting to the 
given type)", "ognl": false, "suffix": "}" },
+    "setVariable(name,type,exp)": { "index": 75, "kind": "function", 
"displayName": "Set Variable", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a variable with the given expression (optional converting to the given 
type)", "ognl": false, "suffix": "}" },
+    "size(exp)": { "index": 76, "kind": "function", "displayName": "Size", 
"group": "function", "label": "function", "required": false, "javaType": "int", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "The size of the message body (or expression). 
If the payload is java.util.Collection or java.util.Map based then the size is 
the number of elements; otherwise the payload size in bytes.", "ognl": false, 
"suffix": "}" },
+    "skip(num)": { "index": 77, "kind": "function", "displayName": "Skip First 
Items from the Message Body", "group": "function", "label": "function", 
"required": false, "javaType": "java.util.Iterator", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The skip function iterates the message body and skips 
the first number of items. This can be used with the Splitter EIP to split a 
message body and skip the first N number of  [...]
+    "split(exp,separator)": { "index": 78, "kind": "function", "displayName": 
"Split String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String[]", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Splits the message body\/expression as a String value using the separator into 
a String array", "ognl": false, "suffix": "}" },
+    "stepId": { "index": 79, "kind": "function", "displayName": "Step Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current step the Exchange is being routed.", "ognl": false, "suffix": "}" },
+    "substring(head,tail)": { "index": 80, "kind": "function", "displayName": 
"Substring", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Returns a substring of 
the message body\/expression. If only one positive number, then the returned 
string is clipped from the beginning. If only one negative number, then the 
returned string is clipped fr [...]
+    "substringAfter(exp,before)": { "index": 81, "kind": "function", 
"displayName": "Substring After", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes after. Returns 
null if nothing comes after.", "ognl": false, "suffix": "}" },
+    "substringBefore(exp,before)": { "index": 82, "kind": "function", 
"displayName": "Substring Before", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes before. Returns 
null if nothing comes before.", "ognl": false, "suffix": "}" },
+    "substringBetween(exp,after,before)": { "index": 83, "kind": "function", 
"displayName": "Substring Between", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that are between after and 
before. Returns null if nothing comes between.", "ognl": false, "suffix": "}" },
+    "sum(val...)": { "index": 84, "kind": "function", "displayName": 
"Calculate Sum Number", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sums together all the values as integral numbers. This function can also be 
used to subtract by using negative numbers.", "ognl": false, "suffix": "}" },
+    "sys.name": { "index": 85, "kind": "function", "displayName": "JVM System 
Property", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The JVM system 
property with the given name", "ognl": false, "suffix": "}" },
+    "threadId": { "index": 86, "kind": "function", "displayName": "Thread Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
+    "threadName": { "index": 87, "kind": "function", "displayName": "Thread 
Name", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the name of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
+    "trim(exp)": { "index": 88, "kind": "function", "displayName": "Trim", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The trim function trims 
the message body (or expression) by removing all leading and trailing white 
spaces.", "ognl": false, "suffix": "}" },
+    "type:name.field": { "index": 89, "kind": "function", "displayName": "Java 
Field Value", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "To refer to a type or 
field by its classname. To refer to a field, you can append .FIELD_NAME. For 
example, you can refer to the constant field from Exchange as: 
`org.apache.camel.Exchange.FILE_NAME`", " [...]
+    "uppercase(exp)": { "index": 90, "kind": "function", "displayName": 
"Uppercase", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Uppercases the message 
body (or expression)", "ognl": false, "suffix": "}" },
+    "uuid(type)": { "index": 91, "kind": "function", "displayName": "Generate 
UUID", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a UUID using the 
Camel `UuidGenerator`. You can choose between `default`, `classic`, `short` and 
`simple` as the type. If no type is given, the default is used. It is also 
possible to use a custom `UuidG [...]
+    "variable.name": { "index": 92, "kind": "function", "displayName": 
"Variable", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The variable with the 
given name", "ognl": true, "suffix": "}" },
+    "variableAs(key,type)": { "index": 93, "kind": "function", "displayName": 
"Variable As", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the variable 
to the given type (classname).", "ognl": false, "suffix": "}" },
+    "variables": { "index": 94, "kind": "function", "displayName": 
"Variables", "group": "function", "label": "function", "required": false, 
"javaType": "java.util.Map", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns all the variables from the current Exchange in a Map", "ognl": false, 
"suffix": "}" },
+    "xpath(input,exp)": { "index": 95, "kind": "function", "displayName": 
"XPath", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "When working with XML 
data, then this allows using the XPath language, for example, to extract data 
from the message body (in XML format). This requires having camel-xpath JAR on 
the classpath. For input (optional [...]
   }
 }
diff --git 
a/components/camel-csimple-joor/src/test/java/org/apache/camel/language/csimple/joor/OriginalSimpleTest.java
 
b/components/camel-csimple-joor/src/test/java/org/apache/camel/language/csimple/joor/OriginalSimpleTest.java
index dc6641b4a84f..49c0fa4a198f 100644
--- 
a/components/camel-csimple-joor/src/test/java/org/apache/camel/language/csimple/joor/OriginalSimpleTest.java
+++ 
b/components/camel-csimple-joor/src/test/java/org/apache/camel/language/csimple/joor/OriginalSimpleTest.java
@@ -2059,12 +2059,15 @@ public class OriginalSimpleTest extends 
LanguageTestSupport {
         assertExpressionCreateNewEmpty("string", String.class, v -> ((String) 
v).isEmpty());
         assertExpressionCreateNewEmpty("STRING", String.class, v -> ((String) 
v).isEmpty());
         assertExpressionCreateNewEmpty("String", String.class, v -> ((String) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("set", Set.class, v -> ((Set) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("SET", Set.class, v -> ((Set) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("Set", Set.class, v -> ((Set) 
v).isEmpty());
 
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty(falseSyntax}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty()}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty(}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty}", null));
-        assertThrows(ExpressionEvaluationException.class, () -> 
evaluateExpression("${empty(unknownType)}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty(falseSyntax}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty()}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty(}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty}", null));
+        assertThrows(ExpressionEvaluationException.class, () -> 
evaluateExpression("${newEmpty(unknownType)}", null));
     }
 
     @Test
@@ -2086,7 +2089,7 @@ public class OriginalSimpleTest extends 
LanguageTestSupport {
 
     private void assertExpressionCreateNewEmpty(
             String type, Class<?> expectedClass, 
java.util.function.Predicate<Object> isEmptyAssertion) {
-        Object value = evaluateExpression("${empty(%s)}".formatted(type), 
null);
+        Object value = evaluateExpression("${newEmpty(%s)}".formatted(type), 
null);
         assertNotNull(value);
         assertIsInstanceOf(expectedClass, value);
         assertTrue(isEmptyAssertion.test(value));
diff --git 
a/core/camel-core-languages/src/generated/resources/META-INF/org/apache/camel/language/simple/simple.json
 
b/core/camel-core-languages/src/generated/resources/META-INF/org/apache/camel/language/simple/simple.json
index 88730ad5a56f..1044b4db7c32 100644
--- 
a/core/camel-core-languages/src/generated/resources/META-INF/org/apache/camel/language/simple/simple.json
+++ 
b/core/camel-core-languages/src/generated/resources/META-INF/org/apache/camel/language/simple/simple.json
@@ -50,7 +50,7 @@
     "date(command)": { "index": 24, "kind": "function", "displayName": "Parse 
Date", "group": "function", "label": "function", "required": false, "javaType": 
"java.util.Date", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Evaluates to a 
java.util.Date object. Supported commands are: `now` for current timestamp, 
`exchangeCreated` for the timestamp when the current exchange was created, 
`header.xxx` to use the Long\/Date ob [...]
     "date-with-timezone(command:timezone:pattern)": { "index": 25, "kind": 
"function", "displayName": "Date Formatter", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Formats the date to a String using the given date 
pattern, and with support for timezone. Supported commands are: `now` for 
current timestamp, `exchangeCreated` for the timesta [...]
     "distinct(val...)": { "index": 26, "kind": "function", "displayName": 
"Distinct Values", "group": "function", "label": "function", "required": false, 
"javaType": "long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a set of all the 
values with duplicates removed", "ognl": false, "suffix": "}" },
-    "empty(type)": { "index": 27, "kind": "function", "displayName": "Create 
Empty Object", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Creates a new empty 
object (decided by type). Use `string` to create an empty String. Use `list` to 
create an empty `java.util.ArrayList`. Use `map` to create an empty 
`java.util.LinkedHashMap`.", "ognl": [...]
+    "empty(type)": { "index": 27, "kind": "function", "displayName": "Create 
Empty Object", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": true, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Creates a new empty 
object (decided by type). Use `string` to create an empty String. Use `list` to 
create an empty `java.util.ArrayList`. Use `map` to create an empty 
`java.util.LinkedHashMap`. Use `set`  [...]
     "env.name": { "index": 28, "kind": "function", "displayName": "OS 
Environment Variable", "group": "function", "label": "function", "required": 
false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
OS environment variable with the given name", "ognl": false, "suffix": "}" },
     "exchange": { "index": 29, "kind": "function", "displayName": "Exchange", 
"group": "function", "label": "function", "required": false, "javaType": 
"org.apache.camel.Exchange", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
current exchange", "ognl": true, "suffix": "}" },
     "exchangeId": { "index": 30, "kind": "function", "displayName": "Exchange 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The exchange id", "ognl": 
false, "suffix": "}" },
@@ -84,39 +84,40 @@
     "messageHistory(boolean)": { "index": 58, "kind": "function", 
"displayName": "Print Message History", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The message history of the current exchange (how it has 
been routed). This is similar to the route stack-trace message history the 
error handler logs in case of an unhandled exception. The b [...]
     "messageTimestamp": { "index": 59, "kind": "function", "displayName": 
"Message Timestamp", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": "The 
message timestamp (millis since epoc) that this message originates from. Some 
systems like JMS, Kafka, AWS have a timestamp on the event\/message that Camel 
received. This method returns the timestam [...]
     "min(val...)": { "index": 60, "kind": "function", "displayName": "Minimum 
Number", "group": "function", "label": "function", "required": false, 
"javaType": "long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the minimum number 
from all the values", "ognl": false, "suffix": "}" },
-    "null": { "index": 61, "kind": "function", "displayName": "Null", "group": 
"function", "label": "function", "required": false, "javaType": "Object", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "Represents a null value", "ognl": false, 
"suffix": "}" },
-    "originalBody": { "index": 62, "kind": "function", "displayName": 
"Original Body", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The original incoming 
body (only available if allowUseOriginalMessage=true).", "ognl": false, 
"suffix": "}" },
-    "pad(exp,width,separator)": { "index": 63, "kind": "function", 
"displayName": "Pad String", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Pads the expression with extra padding if necessary, according the the total 
width. The separator is by default a space. If the width is negative then 
padding to the right, otherwise to the left.", "o [...]
-    "pretty(exp)": { "index": 64, "kind": "function", "displayName": "Pretty 
Print", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the 
expression to a String, and attempts to pretty print if JSon or XML, otherwise 
the expression is returned as the String value.", "ognl": false, "suffix": "}" 
},
-    "prettyBody": { "index": 65, "kind": "function", "displayName": "Pretty 
Body", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Converts the body to a 
String, and attempts to pretty print if JSon or XML; otherwise the body is 
returned as the String value.", "ognl": false, "suffix": "}" },
-    "properties:key:default": { "index": 66, "kind": "function", 
"displayName": "Property Placeholder", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Lookup a property placeholder with the given key. If the 
key does not exist nor has a value, then an optional default value can be 
specified.", "ognl": false, "suffix": "}" },
-    "propertiesExist:key": { "index": 67, "kind": "function", "displayName": 
"Property Placeholder Exists", "group": "function", "label": "function", 
"required": false, "javaType": "boolean", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Checks whether a property placeholder with the given key exists or not. The 
result can be negated by prefixing the key with !", "ognl": false, "suffix": 
"}" },
-    "random(min,max)": { "index": 68, "kind": "function", "displayName": 
"Random", "group": "function", "label": "function", "required": false, 
"javaType": "int", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a random number 
between min and max (exclusive)", "ognl": false, "suffix": "}" },
-    "ref:name": { "index": 69, "kind": "function", "displayName": "Bean By 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"Object", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "To look up a bean from the 
Registry with the given name.", "ognl": false, "suffix": "}" },
-    "replace(from,to,exp)": { "index": 70, "kind": "function", "displayName": 
"Replace String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Replace all the string values in the message body\/expression. To make it 
easier to replace single and double quotes, then you can use XML escaped values 
`\\&quot;` as double quote, `\\&apos;`  [...]
-    "routeGroup": { "index": 71, "kind": "function", "displayName": "Route 
Group", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The route group of the 
current route the Exchange is being routed. Not all routes have a group 
assigned, so this may be null.", "ognl": false, "suffix": "}" },
-    "routeId": { "index": 72, "kind": "function", "displayName": "Route Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The route id of the 
current route the Exchange is being routed", "ognl": false, "suffix": "}" },
-    "setHeader(name,type,exp)": { "index": 73, "kind": "function", 
"displayName": "Set Header", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a message header with the given expression (optional converting to the 
given type)", "ognl": false, "suffix": "}" },
-    "setVariable(name,type,exp)": { "index": 74, "kind": "function", 
"displayName": "Set Variable", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a variable with the given expression (optional converting to the given 
type)", "ognl": false, "suffix": "}" },
-    "size(exp)": { "index": 75, "kind": "function", "displayName": "Size", 
"group": "function", "label": "function", "required": false, "javaType": "int", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "The size of the message body (or expression). 
If the payload is java.util.Collection or java.util.Map based then the size is 
the number of elements; otherwise the payload size in bytes.", "ognl": false, 
"suffix": "}" },
-    "skip(num)": { "index": 76, "kind": "function", "displayName": "Skip First 
Items from the Message Body", "group": "function", "label": "function", 
"required": false, "javaType": "java.util.Iterator", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The skip function iterates the message body and skips 
the first number of items. This can be used with the Splitter EIP to split a 
message body and skip the first N number of  [...]
-    "split(exp,separator)": { "index": 77, "kind": "function", "displayName": 
"Split String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String[]", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Splits the message body\/expression as a String value using the separator into 
a String array", "ognl": false, "suffix": "}" },
-    "stepId": { "index": 78, "kind": "function", "displayName": "Step Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current step the Exchange is being routed.", "ognl": false, "suffix": "}" },
-    "substring(head,tail)": { "index": 79, "kind": "function", "displayName": 
"Substring", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Returns a substring of 
the message body\/expression. If only one positive number, then the returned 
string is clipped from the beginning. If only one negative number, then the 
returned string is clipped fr [...]
-    "substringAfter(exp,before)": { "index": 80, "kind": "function", 
"displayName": "Substring After", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes after. Returns 
null if nothing comes after.", "ognl": false, "suffix": "}" },
-    "substringBefore(exp,before)": { "index": 81, "kind": "function", 
"displayName": "Substring Before", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes before. Returns 
null if nothing comes before.", "ognl": false, "suffix": "}" },
-    "substringBetween(exp,after,before)": { "index": 82, "kind": "function", 
"displayName": "Substring Between", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that are between after and 
before. Returns null if nothing comes between.", "ognl": false, "suffix": "}" },
-    "sum(val...)": { "index": 83, "kind": "function", "displayName": 
"Calculate Sum Number", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sums together all the values as integral numbers. This function can also be 
used to subtract by using negative numbers.", "ognl": false, "suffix": "}" },
-    "sys.name": { "index": 84, "kind": "function", "displayName": "JVM System 
Property", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The JVM system 
property with the given name", "ognl": false, "suffix": "}" },
-    "threadId": { "index": 85, "kind": "function", "displayName": "Thread Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
-    "threadName": { "index": 86, "kind": "function", "displayName": "Thread 
Name", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the name of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
-    "trim(exp)": { "index": 87, "kind": "function", "displayName": "Trim", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The trim function trims 
the message body (or expression) by removing all leading and trailing white 
spaces.", "ognl": false, "suffix": "}" },
-    "type:name.field": { "index": 88, "kind": "function", "displayName": "Java 
Field Value", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "To refer to a type or 
field by its classname. To refer to a field, you can append .FIELD_NAME. For 
example, you can refer to the constant field from Exchange as: 
`org.apache.camel.Exchange.FILE_NAME`", " [...]
-    "uppercase(exp)": { "index": 89, "kind": "function", "displayName": 
"Uppercase", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Uppercases the message 
body (or expression)", "ognl": false, "suffix": "}" },
-    "uuid(type)": { "index": 90, "kind": "function", "displayName": "Generate 
UUID", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a UUID using the 
Camel `UuidGenerator`. You can choose between `default`, `classic`, `short` and 
`simple` as the type. If no type is given, the default is used. It is also 
possible to use a custom `UuidG [...]
-    "variable.name": { "index": 91, "kind": "function", "displayName": 
"Variable", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The variable with the 
given name", "ognl": true, "suffix": "}" },
-    "variableAs(key,type)": { "index": 92, "kind": "function", "displayName": 
"Variable As", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the variable 
to the given type (classname).", "ognl": false, "suffix": "}" },
-    "variables": { "index": 93, "kind": "function", "displayName": 
"Variables", "group": "function", "label": "function", "required": false, 
"javaType": "java.util.Map", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns all the variables from the current Exchange in a Map", "ognl": false, 
"suffix": "}" },
-    "xpath(input,exp)": { "index": 94, "kind": "function", "displayName": 
"XPath", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "When working with XML 
data, then this allows using the XPath language, for example, to extract data 
from the message body (in XML format). This requires having camel-xpath JAR on 
the classpath. For input (optional [...]
+    "newEmpty(type)": { "index": 61, "kind": "function", "displayName": 
"Create Empty Object", "group": "function", "label": "function", "required": 
false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Creates a new empty object (decided by type). Use `string` to create an empty 
String. Use `list` to create an empty `java.util.ArrayList`. Use `map` to 
create an empty `java.util.LinkedHashMap`. Use `s [...]
+    "null": { "index": 62, "kind": "function", "displayName": "Null", "group": 
"function", "label": "function", "required": false, "javaType": "Object", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "Represents a null value", "ognl": false, 
"suffix": "}" },
+    "originalBody": { "index": 63, "kind": "function", "displayName": 
"Original Body", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The original incoming 
body (only available if allowUseOriginalMessage=true).", "ognl": false, 
"suffix": "}" },
+    "pad(exp,width,separator)": { "index": 64, "kind": "function", 
"displayName": "Pad String", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Pads the expression with extra padding if necessary, according the the total 
width. The separator is by default a space. If the width is negative then 
padding to the right, otherwise to the left.", "o [...]
+    "pretty(exp)": { "index": 65, "kind": "function", "displayName": "Pretty 
Print", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the 
expression to a String, and attempts to pretty print if JSon or XML, otherwise 
the expression is returned as the String value.", "ognl": false, "suffix": "}" 
},
+    "prettyBody": { "index": 66, "kind": "function", "displayName": "Pretty 
Body", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Converts the body to a 
String, and attempts to pretty print if JSon or XML; otherwise the body is 
returned as the String value.", "ognl": false, "suffix": "}" },
+    "properties:key:default": { "index": 67, "kind": "function", 
"displayName": "Property Placeholder", "group": "function", "label": 
"function", "required": false, "javaType": "String", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Lookup a property placeholder with the given key. If the 
key does not exist nor has a value, then an optional default value can be 
specified.", "ognl": false, "suffix": "}" },
+    "propertiesExist:key": { "index": 68, "kind": "function", "displayName": 
"Property Placeholder Exists", "group": "function", "label": "function", 
"required": false, "javaType": "boolean", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Checks whether a property placeholder with the given key exists or not. The 
result can be negated by prefixing the key with !", "ognl": false, "suffix": 
"}" },
+    "random(min,max)": { "index": 69, "kind": "function", "displayName": 
"Random", "group": "function", "label": "function", "required": false, 
"javaType": "int", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a random number 
between min and max (exclusive)", "ognl": false, "suffix": "}" },
+    "ref:name": { "index": 70, "kind": "function", "displayName": "Bean By 
Id", "group": "function", "label": "function", "required": false, "javaType": 
"Object", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "To look up a bean from the 
Registry with the given name.", "ognl": false, "suffix": "}" },
+    "replace(from,to,exp)": { "index": 71, "kind": "function", "displayName": 
"Replace String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Replace all the string values in the message body\/expression. To make it 
easier to replace single and double quotes, then you can use XML escaped values 
`\\&quot;` as double quote, `\\&apos;`  [...]
+    "routeGroup": { "index": 72, "kind": "function", "displayName": "Route 
Group", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The route group of the 
current route the Exchange is being routed. Not all routes have a group 
assigned, so this may be null.", "ognl": false, "suffix": "}" },
+    "routeId": { "index": 73, "kind": "function", "displayName": "Route Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The route id of the 
current route the Exchange is being routed", "ognl": false, "suffix": "}" },
+    "setHeader(name,type,exp)": { "index": 74, "kind": "function", 
"displayName": "Set Header", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a message header with the given expression (optional converting to the 
given type)", "ognl": false, "suffix": "}" },
+    "setVariable(name,type,exp)": { "index": 75, "kind": "function", 
"displayName": "Set Variable", "group": "function", "label": "function", 
"required": false, "javaType": "Object", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sets a variable with the given expression (optional converting to the given 
type)", "ognl": false, "suffix": "}" },
+    "size(exp)": { "index": 76, "kind": "function", "displayName": "Size", 
"group": "function", "label": "function", "required": false, "javaType": "int", 
"prefix": "${", "deprecated": false, "deprecationNote": "", "autowired": false, 
"secret": false, "description": "The size of the message body (or expression). 
If the payload is java.util.Collection or java.util.Map based then the size is 
the number of elements; otherwise the payload size in bytes.", "ognl": false, 
"suffix": "}" },
+    "skip(num)": { "index": 77, "kind": "function", "displayName": "Skip First 
Items from the Message Body", "group": "function", "label": "function", 
"required": false, "javaType": "java.util.Iterator", "prefix": "${", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The skip function iterates the message body and skips 
the first number of items. This can be used with the Splitter EIP to split a 
message body and skip the first N number of  [...]
+    "split(exp,separator)": { "index": 78, "kind": "function", "displayName": 
"Split String Values", "group": "function", "label": "function", "required": 
false, "javaType": "String[]", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Splits the message body\/expression as a String value using the separator into 
a String array", "ognl": false, "suffix": "}" },
+    "stepId": { "index": 79, "kind": "function", "displayName": "Step Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current step the Exchange is being routed.", "ognl": false, "suffix": "}" },
+    "substring(head,tail)": { "index": 80, "kind": "function", "displayName": 
"Substring", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Returns a substring of 
the message body\/expression. If only one positive number, then the returned 
string is clipped from the beginning. If only one negative number, then the 
returned string is clipped fr [...]
+    "substringAfter(exp,before)": { "index": 81, "kind": "function", 
"displayName": "Substring After", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes after. Returns 
null if nothing comes after.", "ognl": false, "suffix": "}" },
+    "substringBefore(exp,before)": { "index": 82, "kind": "function", 
"displayName": "Substring Before", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that comes before. Returns 
null if nothing comes before.", "ognl": false, "suffix": "}" },
+    "substringBetween(exp,after,before)": { "index": 83, "kind": "function", 
"displayName": "Substring Between", "group": "function", "label": "function", 
"required": false, "javaType": "String", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns a substring of the message body\/expression that are between after and 
before. Returns null if nothing comes between.", "ognl": false, "suffix": "}" },
+    "sum(val...)": { "index": 84, "kind": "function", "displayName": 
"Calculate Sum Number", "group": "function", "label": "function", "required": 
false, "javaType": "long", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Sums together all the values as integral numbers. This function can also be 
used to subtract by using negative numbers.", "ognl": false, "suffix": "}" },
+    "sys.name": { "index": 85, "kind": "function", "displayName": "JVM System 
Property", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The JVM system 
property with the given name", "ognl": false, "suffix": "}" },
+    "threadId": { "index": 86, "kind": "function", "displayName": "Thread Id", 
"group": "function", "label": "function", "required": false, "javaType": 
"long", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the id of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
+    "threadName": { "index": 87, "kind": "function", "displayName": "Thread 
Name", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns the name of the 
current thread. Can be used for logging.", "ognl": false, "suffix": "}" },
+    "trim(exp)": { "index": 88, "kind": "function", "displayName": "Trim", 
"group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The trim function trims 
the message body (or expression) by removing all leading and trailing white 
spaces.", "ognl": false, "suffix": "}" },
+    "type:name.field": { "index": 89, "kind": "function", "displayName": "Java 
Field Value", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "To refer to a type or 
field by its classname. To refer to a field, you can append .FIELD_NAME. For 
example, you can refer to the constant field from Exchange as: 
`org.apache.camel.Exchange.FILE_NAME`", " [...]
+    "uppercase(exp)": { "index": 90, "kind": "function", "displayName": 
"Uppercase", "group": "function", "label": "function", "required": false, 
"javaType": "String", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Uppercases the message 
body (or expression)", "ognl": false, "suffix": "}" },
+    "uuid(type)": { "index": 91, "kind": "function", "displayName": "Generate 
UUID", "group": "function", "label": "function", "required": false, "javaType": 
"String", "prefix": "${", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Returns a UUID using the 
Camel `UuidGenerator`. You can choose between `default`, `classic`, `short` and 
`simple` as the type. If no type is given, the default is used. It is also 
possible to use a custom `UuidG [...]
+    "variable.name": { "index": 92, "kind": "function", "displayName": 
"Variable", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "The variable with the 
given name", "ognl": true, "suffix": "}" },
+    "variableAs(key,type)": { "index": 93, "kind": "function", "displayName": 
"Variable As", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "Converts the variable 
to the given type (classname).", "ognl": false, "suffix": "}" },
+    "variables": { "index": 94, "kind": "function", "displayName": 
"Variables", "group": "function", "label": "function", "required": false, 
"javaType": "java.util.Map", "prefix": "${", "deprecated": false, 
"deprecationNote": "", "autowired": false, "secret": false, "description": 
"Returns all the variables from the current Exchange in a Map", "ognl": false, 
"suffix": "}" },
+    "xpath(input,exp)": { "index": 95, "kind": "function", "displayName": 
"XPath", "group": "function", "label": "function", "required": false, 
"javaType": "Object", "prefix": "${", "deprecated": false, "deprecationNote": 
"", "autowired": false, "secret": false, "description": "When working with XML 
data, then this allows using the XPath language, for example, to extract data 
from the message body (in XML format). This requires having camel-xpath JAR on 
the classpath. For input (optional [...]
   }
 }
diff --git 
a/core/camel-core-languages/src/main/docs/modules/languages/pages/simple-language.adoc
 
b/core/camel-core-languages/src/main/docs/modules/languages/pages/simple-language.adoc
index f42a1962af55..f0d9f7973d8d 100644
--- 
a/core/camel-core-languages/src/main/docs/modules/languages/pages/simple-language.adoc
+++ 
b/core/camel-core-languages/src/main/docs/modules/languages/pages/simple-language.adoc
@@ -122,6 +122,8 @@ The Simple language has many built-in functions which 
allows access to various p
 
 NOTE: Some functions take 1 or more arguments enclosed in parentheses, and 
arguments separated by comma (ie `${replace('custID','customerId')}`.
 
+TIP:
+
 === Camel Functions
 
 [width="100%",cols="10%,10%,80%",options="header",]
@@ -192,9 +194,10 @@ NOTE: Some functions take 1 or more arguments enclosed in 
parentheses, and argum
 |====
 |`collate(size)` | `List` | The collate function iterates the message body and 
groups the data into sub lists of specified size. This can be used with the 
Splitter EIP to split a message body and group/batch the split sub message into 
a group of N sub lists. This method works similar to the collate method in 
Groovy.
 |`distinct(val1,val2,...)` | `Set` | Returns a set of all the values with 
duplicates removed
-|`empty(kind)` | `<T>` | Creates a new empty object of the given kind. The 
`string` kind creates an empty `String` object. The `list` creates an empty 
`ArrayList`, and `map` creates an empty `LinkedHashMap` object.
+|`empty(kind)` | `<T>` | *Deprecated* Use `createEmpty` instead.
 |`list(val1,val2,...)` | `List` | The list function creates an 
`java.util.ArrayList` with the given set of values.
 |`map(key1,value1,...)` | `Map` | The map function creates a 
`java.util.LinkedHashMap` with the given set of pairs.
+|`createEmpty(kind)` | `<T>` | Creates a new empty object of the given kind. 
The `string` kind creates an empty `String` object. The `list` creates an empty 
`ArrayList`, and `map` creates an empty `LinkedHashMap` object. Use `set` to 
create an empty `java.util.LinkedHashSet`.
 |`skip(number)` | `Iterator` | The skip function iterates the message body and 
skips the first number of items. This can be used with the Splitter EIP to 
split a message body and skip the first N number of items.
 |`split(separator)` | `String[]` | Splits the message body as a `String` value 
using the separator into a `String` array. The separator is comma by default.
 |`split(exp,separator)` | `String[]` | Splits the expression as a `String` 
value using the separator into a `String` array. The separator is comma by 
default.
diff --git 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/csimple/CSimpleHelper.java
 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/csimple/CSimpleHelper.java
index b414c5dc107d..bca7465be1f0 100644
--- 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/csimple/CSimpleHelper.java
+++ 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/csimple/CSimpleHelper.java
@@ -509,15 +509,17 @@ public final class CSimpleHelper {
         }
     }
 
-    public static Object empty(Exchange exchange, String type) {
+    public static Object newEmpty(Exchange exchange, String type) {
         if ("map".equalsIgnoreCase(type)) {
             return new LinkedHashMap<>();
         } else if ("string".equalsIgnoreCase(type)) {
             return "";
         } else if ("list".equalsIgnoreCase(type)) {
             return new ArrayList<>();
+        } else if ("set".equalsIgnoreCase(type)) {
+            return new LinkedHashSet<>();
         }
-        throw new IllegalArgumentException("function empty(%s) has unknown 
type".formatted(type));
+        throw new IllegalArgumentException("function newEmpty(%s) has unknown 
type".formatted(type));
     }
 
     public static List<Object> list(Exchange exchange, Object... args) {
diff --git 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleConstants.java
 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleConstants.java
index 5bdd8beb4ea7..e3b40c76dd66 100644
--- 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleConstants.java
+++ 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleConstants.java
@@ -119,7 +119,8 @@ public final class SimpleConstants {
               label = "function", javaType = "long", displayName = "Distinct 
Values")
     public static final String DISTINCT = "distinct(val...)";
 
-    @Metadata(description = "Creates a new empty object (decided by type). Use 
`string` to create an empty String. Use `list` to create an empty 
`java.util.ArrayList`. Use `map` to create an empty `java.util.LinkedHashMap`.",
+    @Deprecated
+    @Metadata(description = "Creates a new empty object (decided by type). Use 
`string` to create an empty String. Use `list` to create an empty 
`java.util.ArrayList`. Use `map` to create an empty `java.util.LinkedHashMap`. 
Use `set` to create an empty `java.util.LinkedHashSet`.",
               label = "function", javaType = "Object", displayName = "Create 
Empty Object")
     public static final String EMPTY = "empty(type)";
 
@@ -247,6 +248,10 @@ public final class SimpleConstants {
               displayName = "Minimum Number")
     public static final String MIN = "min(val...)";
 
+    @Metadata(description = "Creates a new empty object (decided by type). Use 
`string` to create an empty String. Use `list` to create an empty 
`java.util.ArrayList`. Use `map` to create an empty `java.util.LinkedHashMap`. 
Use `set` to create an empty `java.util.LinkedHashSet`.",
+              label = "function", javaType = "Object", displayName = "Create 
Empty Object")
+    public static final String NEW_EMPTY = "newEmpty(type)";
+
     @Metadata(description = "Represents a null value", label = "function", 
javaType = "Object")
     public static final String NULL = "null";
 
diff --git 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleExpressionBuilder.java
 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleExpressionBuilder.java
index 48d46792aa54..a6565f7a237e 100644
--- 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleExpressionBuilder.java
+++ 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/SimpleExpressionBuilder.java
@@ -1761,6 +1761,8 @@ public final class SimpleExpressionBuilder {
                     return "";
                 } else if ("list".equalsIgnoreCase(type)) {
                     return new ArrayList<>();
+                } else if ("set".equalsIgnoreCase(type)) {
+                    return new LinkedHashSet<>();
                 }
                 throw new IllegalArgumentException("function empty(%s) has 
unknown type".formatted(type));
             }
diff --git 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/ast/SimpleFunctionExpression.java
 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/ast/SimpleFunctionExpression.java
index ac22e6d799b9..2648eca6a3c6 100644
--- 
a/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/ast/SimpleFunctionExpression.java
+++ 
b/core/camel-core-languages/src/main/java/org/apache/camel/language/simple/ast/SimpleFunctionExpression.java
@@ -1299,6 +1299,16 @@ public class SimpleFunctionExpression extends 
LiteralExpression {
             }
             return SimpleExpressionBuilder.newEmptyExpression(value);
         }
+        // newEmpty function
+        remainder = ifStartsWithReturnRemainder("newEmpty(", function);
+        if (remainder != null) {
+            String value = StringHelper.before(remainder, ")");
+            if (ObjectHelper.isEmpty(value)) {
+                throw new SimpleParserException(
+                        "Valid syntax: ${newEmpty(<type>)} but was: " + 
function, token.getIndex());
+            }
+            return SimpleExpressionBuilder.newEmptyExpression(value);
+        }
         // iif function
         remainder = ifStartsWithReturnRemainder("iif(", function);
         if (remainder != null) {
@@ -3111,7 +3121,18 @@ public class SimpleFunctionExpression extends 
LiteralExpression {
                         "Valid syntax: ${empty(<type>)} but was: " + function, 
token.getIndex());
             }
             value = StringQuoteHelper.doubleQuote(value);
-            return "empty(exchange, " + value + ")";
+            return "newEmpty(exchange, " + value + ")";
+        }
+        // newEmpty
+        remainder = ifStartsWithReturnRemainder("newEmpty(", function);
+        if (remainder != null) {
+            String value = StringHelper.beforeLast(remainder, ")");
+            if (ObjectHelper.isEmpty(value)) {
+                throw new SimpleParserException(
+                        "Valid syntax: ${newEmpty(<type>)} but was: " + 
function, token.getIndex());
+            }
+            value = StringQuoteHelper.doubleQuote(value);
+            return "newEmpty(exchange, " + value + ")";
         }
 
         // list function
diff --git 
a/core/camel-core/src/test/java/org/apache/camel/language/simple/SimpleTest.java
 
b/core/camel-core/src/test/java/org/apache/camel/language/simple/SimpleTest.java
index 271ab904adce..4aece583045e 100644
--- 
a/core/camel-core/src/test/java/org/apache/camel/language/simple/SimpleTest.java
+++ 
b/core/camel-core/src/test/java/org/apache/camel/language/simple/SimpleTest.java
@@ -3018,12 +3018,15 @@ public class SimpleTest extends LanguageTestSupport {
         assertExpressionCreateNewEmpty("string", String.class, v -> ((String) 
v).isEmpty());
         assertExpressionCreateNewEmpty("STRING", String.class, v -> ((String) 
v).isEmpty());
         assertExpressionCreateNewEmpty("String", String.class, v -> ((String) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("set", Set.class, v -> ((Set) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("SET", Set.class, v -> ((Set) 
v).isEmpty());
+        assertExpressionCreateNewEmpty("Set", Set.class, v -> ((Set) 
v).isEmpty());
 
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty(falseSyntax}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty()}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty(}", null));
-        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${empty}", null));
-        assertThrows(IllegalArgumentException.class, () -> 
evaluateExpression("${empty(unknownType)}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty(falseSyntax}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty()}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty(}", null));
+        assertThrows(SimpleIllegalSyntaxException.class, () -> 
evaluateExpression("${newEmpty}", null));
+        assertThrows(IllegalArgumentException.class, () -> 
evaluateExpression("${newEmpty(unknownType)}", null));
     }
 
     @Test
@@ -3110,7 +3113,7 @@ public class SimpleTest extends LanguageTestSupport {
 
     private void assertExpressionCreateNewEmpty(
             String type, Class<?> expectedClass, 
java.util.function.Predicate<Object> isEmptyAssertion) {
-        Object value = evaluateExpression("${empty(%s)}".formatted(type), 
null);
+        Object value = evaluateExpression("${newEmpty(%s)}".formatted(type), 
null);
         assertNotNull(value);
         assertIsInstanceOf(expectedClass, value);
         assertTrue(isEmptyAssertion.test(value));

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