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ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-text.git
The following commit(s) were added to refs/heads/master by this push:
new 5597e216 Add support for a new StringLookup key "loopbackAddress",
similar to "localhost"
5597e216 is described below
commit 5597e216f2a4b11bae0b37ec597bfd0d9a0fcae7
Author: Gary Gregory <[email protected]>
AuthorDate: Thu Sep 19 13:17:37 2024 -0400
Add support for a new StringLookup key "loopbackAddress", similar to
"localhost"
---
pom.xml | 8 ++--
src/changes/changes.xml | 6 ++-
.../org/apache/commons/text/StringSubstitutor.java | 4 ++
.../commons/text/lookup/DefaultStringLookup.java | 8 ++++
.../text/lookup/InetAddressStringLookup.java | 32 ++++++++++---
.../commons/text/lookup/StringLookupFactory.java | 53 ++++++++++++++++++++--
src/site/xdoc/userguide.xml | 3 +-
...a => InetAddressStringLookupLocalHostTest.java} | 19 ++++----
...netAddressStringLookupLoopbackAddressTest.java} | 26 +++++------
.../text/lookup/StringLookupFactoryTest.java | 6 ++-
10 files changed, 122 insertions(+), 43 deletions(-)
diff --git a/pom.xml b/pom.xml
index 6641a18c..eae1ee3c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
<version>75</version>
</parent>
<artifactId>commons-text</artifactId>
- <version>1.12.1-SNAPSHOT</version>
+ <version>1.13.0-SNAPSHOT</version>
<name>Apache Commons Text</name>
<description>Apache Commons Text is a set of utility functions and reusable
components for the purpose of processing
and manipulating text that should be of use in a Java environment.
@@ -41,8 +41,8 @@
<commons.packageId>text</commons.packageId>
<commons.module.name>org.apache.commons.text</commons.module.name>
- <commons.release.version>1.12.0</commons.release.version>
- <commons.release.next>1.12.1</commons.release.next>
+ <commons.release.version>1.13.0</commons.release.version>
+ <commons.release.next>1.13.1</commons.release.next>
<commons.release.desc>(Java 8+)</commons.release.desc>
<commons.jira.id>TEXT</commons.jira.id>
@@ -59,7 +59,7 @@
<!-- Commons Release Plugin -->
<!-- Previous version of the component (used for reporting binary
compatibility check)-->
- <commons.bc.version>1.11.0</commons.bc.version>
+ <commons.bc.version>1.12.0</commons.bc.version>
<commons.rc.version>RC1</commons.rc.version>
<commons.release.isDistModule>true</commons.release.isDistModule>
<commons.distSvnStagingUrl>scm:svn:https://dist.apache.org/repos/dist/dev/commons/${commons.componentid}</commons.distSvnStagingUrl>
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index db4ac195..91391f8a 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -45,7 +45,11 @@ The <action> type attribute can be add,update,fix,remove.
<title>Apache Commons Text Changes</title>
</properties>
<body>
- <release version="1.12.1" date="YYYY-MM-DD" description="Release 1.12.1.
Requires Java 8 or above.">
+ <release version="1.13.0" date="YYYY-MM-DD" description="Release 1.13.0.
Requires Java 8 or above.">
+ <!-- ADD -->
+ <action type="add" dev="ggregory" due-to="Gary Gregory">Add
StringLookupFactory.loopbackAddressStringLookup().</action>
+ <action type="add" dev="ggregory" due-to="Gary Gregory">Add
StringLookupFactory.KEY_LOOPBACK_ADDRESS.</action>
+ <action type="add" dev="ggregory" due-to="Gary Gregory">Add
DefaultStringLookup.LOOPBACK_ADDRESS.</action>
<!-- FIX -->
<action type="fix" dev="ggregory" due-to="Gary Gregory">Fix build on Java
22.</action>
<action type="fix" dev="ggregory" due-to="Gary Gregory">Fix build on Java
23-ea.</action>
diff --git a/src/main/java/org/apache/commons/text/StringSubstitutor.java
b/src/main/java/org/apache/commons/text/StringSubstitutor.java
index 190e5a88..b83bf003 100644
--- a/src/main/java/org/apache/commons/text/StringSubstitutor.java
+++ b/src/main/java/org/apache/commons/text/StringSubstitutor.java
@@ -345,6 +345,10 @@ public class StringSubstitutor {
* <td>{@link StringLookupFactory#localHostStringLookup()}</td>
* </tr>
* <tr>
+ * <td>{@value
org.apache.commons.text.lookup.StringLookupFactory#KEY_LOOPBACK_ADDRESS}</td>
+ * <td>{@link StringLookupFactory#loopbackAddressStringLookup()}</td>
+ * </tr>
+ * <tr>
* <td>{@value
org.apache.commons.text.lookup.StringLookupFactory#KEY_PROPERTIES}</td>
* <td>{@link StringLookupFactory#propertiesStringLookup()}</td>
* </tr>
diff --git
a/src/main/java/org/apache/commons/text/lookup/DefaultStringLookup.java
b/src/main/java/org/apache/commons/text/lookup/DefaultStringLookup.java
index d7eb8bcf..b985efdf 100644
--- a/src/main/java/org/apache/commons/text/lookup/DefaultStringLookup.java
+++ b/src/main/java/org/apache/commons/text/lookup/DefaultStringLookup.java
@@ -106,6 +106,14 @@ public enum DefaultStringLookup {
*/
LOCAL_HOST(StringLookupFactory.KEY_LOCALHOST,
StringLookupFactory.INSTANCE.localHostStringLookup()),
+ /**
+ * The lookup for local host information using the key {@code
"loopbackAddress"}.
+ *
+ * @see StringLookupFactory#KEY_LOOPBACK_ADDRESS
+ * @see StringLookupFactory#loopbackAddressStringLookup()
+ */
+ LOOPBACK_ADDRESS(StringLookupFactory.KEY_LOOPBACK_ADDRESS,
StringLookupFactory.INSTANCE.loopbackAddressStringLookup()),
+
/**
* The lookup for properties using the key {@code "properties"}.
*
diff --git
a/src/main/java/org/apache/commons/text/lookup/InetAddressStringLookup.java
b/src/main/java/org/apache/commons/text/lookup/InetAddressStringLookup.java
index 797caa20..395d1d53 100644
--- a/src/main/java/org/apache/commons/text/lookup/InetAddressStringLookup.java
+++ b/src/main/java/org/apache/commons/text/lookup/InetAddressStringLookup.java
@@ -18,6 +18,9 @@ package org.apache.commons.text.lookup;
import java.net.InetAddress;
import java.net.UnknownHostException;
+import java.util.Objects;
+
+import org.apache.commons.lang3.function.FailableSupplier;
/**
* Looks up keys related to an {@link InetAddresse}.
@@ -38,15 +41,30 @@ import java.net.UnknownHostException;
final class InetAddressStringLookup extends AbstractStringLookup {
/**
- * Defines the singleton for this class.
+ * Defines the LOCAL_HOST constant.
*/
- static final InetAddressStringLookup INSTANCE = new
InetAddressStringLookup();
+ static final InetAddressStringLookup LOCAL_HOST = new
InetAddressStringLookup(InetAddress::getLocalHost);
+
+ /**
+ * Defines the LOCAL_HOST constant.
+ */
+ static final InetAddressStringLookup LOOPACK_ADDRESS = new
InetAddressStringLookup(InetAddress::getLoopbackAddress);
+
+ /**
+ * Supplies the InetAddress.
+ */
+ private final FailableSupplier<InetAddress, UnknownHostException>
inetAddressSupplier;
/**
* No need to build instances for now.
*/
- private InetAddressStringLookup() {
- // empty
+ private InetAddressStringLookup(final FailableSupplier<InetAddress,
UnknownHostException> inetAddressSupplier) {
+ this.inetAddressSupplier = Objects.requireNonNull(inetAddressSupplier,
"inetAddressSupplier");
+ }
+
+ private InetAddress getInetAddress() throws UnknownHostException {
+ // Don't cache result, methods, like InetAddress::getLocalHost do
their own cacheing.
+ return inetAddressSupplier.get();
}
/**
@@ -63,11 +81,11 @@ final class InetAddressStringLookup extends
AbstractStringLookup {
try {
switch (key) {
case InetAddressKeys.KEY_NAME:
- return InetAddress.getLocalHost().getHostName();
+ return getInetAddress().getHostName();
case InetAddressKeys.KEY_CANONICAL_NAME:
- return InetAddress.getLocalHost().getCanonicalHostName();
+ return getInetAddress().getCanonicalHostName();
case InetAddressKeys.KEY_ADDRESS:
- return InetAddress.getLocalHost().getHostAddress();
+ return getInetAddress().getHostAddress();
default:
throw new IllegalArgumentException(key);
}
diff --git
a/src/main/java/org/apache/commons/text/lookup/StringLookupFactory.java
b/src/main/java/org/apache/commons/text/lookup/StringLookupFactory.java
index 995be76b..f14eb90a 100644
--- a/src/main/java/org/apache/commons/text/lookup/StringLookupFactory.java
+++ b/src/main/java/org/apache/commons/text/lookup/StringLookupFactory.java
@@ -17,6 +17,7 @@
package org.apache.commons.text.lookup;
+import java.net.InetAddress;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.util.Base64;
@@ -115,6 +116,12 @@ import org.apache.commons.text.StringSubstitutor;
* <td>1.3</td>
* </tr>
* <tr>
+ * <td>{@value #KEY_LOOPBACK_ADDRESS}</td>
+ * <td>{@link StringLookup}</td>
+ * <td>{@link #loopbackAddressStringLookup()}</td>
+ * <td>1.13.0</td>
+ * </tr>
+ * <tr>
* <td>{@value #KEY_PROPERTIES}</td>
* <td>{@link StringLookup}</td>
* <td>{@link #propertiesStringLookup(Path...)}</td>
@@ -289,6 +296,7 @@ public final class StringLookupFactory {
addLookup(DefaultStringLookup.FILE, lookupMap);
addLookup(DefaultStringLookup.JAVA, lookupMap);
addLookup(DefaultStringLookup.LOCAL_HOST, lookupMap);
+ addLookup(DefaultStringLookup.LOCAL_HOST, lookupMap);
addLookup(DefaultStringLookup.PROPERTIES, lookupMap);
addLookup(DefaultStringLookup.RESOURCE_BUNDLE, lookupMap);
addLookup(DefaultStringLookup.SYSTEM_PROPERTIES, lookupMap);
@@ -502,6 +510,13 @@ public final class StringLookupFactory {
*/
public static final String KEY_LOCALHOST = "localhost";
+ /**
+ * Default lookup key for interpolation {@value #KEY_LOOPBACK_ADDRESS}.
+ *
+ * @since 1.13.0
+ */
+ public static final String KEY_LOOPBACK_ADDRESS = "loobackAddress";
+
/**
* Default lookup key for interpolation {@value #KEY_PROPERTIES}.
*
@@ -1084,7 +1099,7 @@ public final class StringLookupFactory {
}
/**
- * Returns the LocalHostStringLookup singleton instance where the lookup
key is one of:
+ * Returns the InetAddressStringLookup instance where the lookup key for
{@link InetAddress#getLocalHost()} is one of:
* <ul>
* <li><b>name</b>: for the local host name, for example {@code
EXAMPLE}.</li>
* <li><b>canonical-name</b>: for the local canonical host name, for
example {@code EXAMPLE.apache.org}.</li>
@@ -1109,10 +1124,42 @@ public final class StringLookupFactory {
* The above examples convert {@code "canonical-name"} to the current host
name, for example, {@code "EXAMPLE.apache.org"}.
* </p>
*
- * @return The DateStringLookup singleton instance.
+ * @return The InetAddressStringLookup singleton instance.
*/
public StringLookup localHostStringLookup() {
- return InetAddressStringLookup.INSTANCE;
+ return InetAddressStringLookup.LOCAL_HOST;
+ }
+
+ /**
+ * Returns the InetAddressStringLookup instance where the lookup key for
{@link InetAddress#getLoopbackAddress()} is one of:
+ * <ul>
+ * <li><b>name</b>: for the local host name, for example {@code
EXAMPLE}.</li>
+ * <li><b>canonical-name</b>: for the local canonical host name, for
example {@code EXAMPLE.apache.org}.</li>
+ * <li><b>address</b>: for the local host address, for example {@code
192.168.56.1}.</li>
+ * </ul>
+ *
+ * <p>
+ * Using a {@link StringLookup} from the {@link StringLookupFactory}:
+ * </p>
+ *
+ * <pre>
+ *
StringLookupFactory.INSTANCE.loopbackAddressStringLookup().lookup("canonical-name");
+ * </pre>
+ * <p>
+ * Using a {@link StringSubstitutor}:
+ * </p>
+ *
+ * <pre>
+ * StringSubstitutor.createInterpolator().replace("...
${loopbackAddress:canonical-name} ..."));
+ * </pre>
+ * <p>
+ * The above examples convert {@code "canonical-name"} to the current host
name, for example, {@code "EXAMPLE.apache.org"}.
+ * </p>
+ *
+ * @return The InetAddressStringLookup singleton instance.
+ */
+ public StringLookup loopbackAddressStringLookup() {
+ return InetAddressStringLookup.LOOPACK_ADDRESS;
}
/**
diff --git a/src/site/xdoc/userguide.xml b/src/site/xdoc/userguide.xml
index eb5ed835..598b6c24 100644
--- a/src/site/xdoc/userguide.xml
+++ b/src/site/xdoc/userguide.xml
@@ -205,7 +205,8 @@ final String text = interpolator.replace(
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#environmentVariableStringLookup()">Environment
Variable</a>: ${env:USERNAME}\n" +
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#fileStringLookup(java.nio.file.Path...)()">File
Content</a>: ${file:UTF-8:src/test/resources/document.properties}\n" +
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#javaPlatformStringLookup()">Java</a>:
${java:version}\n" +
- "<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#localHostStringLookup()">Localhost</a>:
${localhost:canonical-name}\n" +
+ "<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#localHostStringLookup()">Local
host</a>: ${localhost:canonical-name}\n" +
+ "<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#localHostStringLookup()">Loopback
address</a>: ${loopbackAddress:canonical-name}\n" +
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#propertiesStringLookup(java.nio.file.Path...)()">Properties
File</a>: ${properties:src/test/resources/document.properties::mykey}\n"
+
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#resourceBundleStringLookup(java.lang.String)()">Resource
Bundle</a>:
${resourceBundle:org.apache.commons.text.example.testResourceBundleLookup:mykey}\n"
+
"<a
href="https://commons.apache.org/proper/commons-text/apidocs/org/apache/commons/text/lookup/StringLookupFactory.html#systemPropertyStringLookup()">System
Property</a>: ${sys:user.dir}\n" +
diff --git
a/src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
b/src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLocalHostTest.java
similarity index 75%
copy from
src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
copy to
src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLocalHostTest.java
index ddb64e32..cc8e3cd5 100644
---
a/src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
+++
b/src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLocalHostTest.java
@@ -24,42 +24,39 @@ import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
/**
- * Tests {@link InetAddressStringLookup}.
+ * Tests {@link InetAddressStringLookup#LOCAL_HOST}.
*/
-public class LocalHostStringLookupTest {
+public class InetAddressStringLookupLocalHostTest {
@Test
public void testAddress() throws UnknownHostException {
- Assertions.assertEquals(InetAddress.getLocalHost().getHostAddress(),
- InetAddressStringLookup.INSTANCE.lookup("address"));
+ Assertions.assertEquals(InetAddress.getLocalHost().getHostAddress(),
InetAddressStringLookup.LOCAL_HOST.lookup("address"));
}
@Test
public void testBadKey() {
- Assertions.assertThrows(IllegalArgumentException.class, () ->
InetAddressStringLookup.INSTANCE.lookup("FOO"));
+ Assertions.assertThrows(IllegalArgumentException.class, () ->
InetAddressStringLookup.LOCAL_HOST.lookup("FOO"));
}
@Test
public void testCanonicalName() throws UnknownHostException {
-
Assertions.assertEquals(InetAddress.getLocalHost().getCanonicalHostName(),
- InetAddressStringLookup.INSTANCE.lookup("canonical-name"));
+
Assertions.assertEquals(InetAddress.getLocalHost().getCanonicalHostName(),
InetAddressStringLookup.LOCAL_HOST.lookup("canonical-name"));
}
@Test
public void testName() throws UnknownHostException {
- Assertions.assertEquals(InetAddress.getLocalHost().getHostName(),
- InetAddressStringLookup.INSTANCE.lookup("name"));
+ Assertions.assertEquals(InetAddress.getLocalHost().getHostName(),
InetAddressStringLookup.LOCAL_HOST.lookup("name"));
}
@Test
public void testNull() {
- Assertions.assertNull(InetAddressStringLookup.INSTANCE.lookup(null));
+ Assertions.assertNull(InetAddressStringLookup.LOCAL_HOST.lookup(null));
}
@Test
public void testToString() {
// does not blow up and gives some kind of string.
-
Assertions.assertFalse(InetAddressStringLookup.INSTANCE.toString().isEmpty());
+
Assertions.assertFalse(InetAddressStringLookup.LOCAL_HOST.toString().isEmpty());
}
}
diff --git
a/src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
b/src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLoopbackAddressTest.java
similarity index 57%
rename from
src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
rename to
src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLoopbackAddressTest.java
index ddb64e32..3d841440 100644
---
a/src/test/java/org/apache/commons/text/lookup/LocalHostStringLookupTest.java
+++
b/src/test/java/org/apache/commons/text/lookup/InetAddressStringLookupLoopbackAddressTest.java
@@ -18,48 +18,44 @@
package org.apache.commons.text.lookup;
import java.net.InetAddress;
-import java.net.UnknownHostException;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
/**
- * Tests {@link InetAddressStringLookup}.
+ * Tests {@link InetAddressStringLookup#LOOPACK_ADDRESS}.
*/
-public class LocalHostStringLookupTest {
+public class InetAddressStringLookupLoopbackAddressTest {
@Test
- public void testAddress() throws UnknownHostException {
- Assertions.assertEquals(InetAddress.getLocalHost().getHostAddress(),
- InetAddressStringLookup.INSTANCE.lookup("address"));
+ public void testAddress() {
+
Assertions.assertEquals(InetAddress.getLoopbackAddress().getHostAddress(),
InetAddressStringLookup.LOOPACK_ADDRESS.lookup("address"));
}
@Test
public void testBadKey() {
- Assertions.assertThrows(IllegalArgumentException.class, () ->
InetAddressStringLookup.INSTANCE.lookup("FOO"));
+ Assertions.assertThrows(IllegalArgumentException.class, () ->
InetAddressStringLookup.LOOPACK_ADDRESS.lookup("FOO"));
}
@Test
- public void testCanonicalName() throws UnknownHostException {
-
Assertions.assertEquals(InetAddress.getLocalHost().getCanonicalHostName(),
- InetAddressStringLookup.INSTANCE.lookup("canonical-name"));
+ public void testCanonicalName() {
+
Assertions.assertEquals(InetAddress.getLoopbackAddress().getCanonicalHostName(),
InetAddressStringLookup.LOOPACK_ADDRESS.lookup("canonical-name"));
}
@Test
- public void testName() throws UnknownHostException {
- Assertions.assertEquals(InetAddress.getLocalHost().getHostName(),
- InetAddressStringLookup.INSTANCE.lookup("name"));
+ public void testName() {
+
Assertions.assertEquals(InetAddress.getLoopbackAddress().getHostName(),
InetAddressStringLookup.LOOPACK_ADDRESS.lookup("name"));
}
@Test
public void testNull() {
- Assertions.assertNull(InetAddressStringLookup.INSTANCE.lookup(null));
+
Assertions.assertNull(InetAddressStringLookup.LOOPACK_ADDRESS.lookup(null));
}
@Test
public void testToString() {
// does not blow up and gives some kind of string.
-
Assertions.assertFalse(InetAddressStringLookup.INSTANCE.toString().isEmpty());
+
Assertions.assertFalse(InetAddressStringLookup.LOOPACK_ADDRESS.toString().isEmpty());
}
}
diff --git
a/src/test/java/org/apache/commons/text/lookup/StringLookupFactoryTest.java
b/src/test/java/org/apache/commons/text/lookup/StringLookupFactoryTest.java
index 8f29fc7a..b32b01ad 100644
--- a/src/test/java/org/apache/commons/text/lookup/StringLookupFactoryTest.java
+++ b/src/test/java/org/apache/commons/text/lookup/StringLookupFactoryTest.java
@@ -44,6 +44,7 @@ public class StringLookupFactoryTest {
StringLookupFactory.KEY_FILE,
StringLookupFactory.KEY_JAVA,
StringLookupFactory.KEY_LOCALHOST,
+ StringLookupFactory.KEY_LOOPBACK_ADDRESS,
StringLookupFactory.KEY_PROPERTIES,
StringLookupFactory.KEY_RESOURCE_BUNDLE,
StringLookupFactory.KEY_SYS,
@@ -120,6 +121,7 @@ public class StringLookupFactoryTest {
StringLookupFactory.KEY_FILE,
StringLookupFactory.KEY_JAVA,
StringLookupFactory.KEY_LOCALHOST,
+ StringLookupFactory.KEY_LOOPBACK_ADDRESS,
StringLookupFactory.KEY_PROPERTIES,
StringLookupFactory.KEY_RESOURCE_BUNDLE,
StringLookupFactory.KEY_SYS,
@@ -185,6 +187,7 @@ public class StringLookupFactoryTest {
StringLookupFactory.KEY_FILE,
StringLookupFactory.KEY_JAVA,
StringLookupFactory.KEY_LOCALHOST,
+ StringLookupFactory.KEY_LOOPBACK_ADDRESS,
StringLookupFactory.KEY_PROPERTIES,
StringLookupFactory.KEY_RESOURCE_BUNDLE,
StringLookupFactory.KEY_SYS,
@@ -223,7 +226,8 @@ public class StringLookupFactoryTest {
stringLookupFactory.environmentVariableStringLookup());
Assertions.assertSame(InterpolatorStringLookup.INSTANCE,
stringLookupFactory.interpolatorStringLookup());
Assertions.assertSame(JavaPlatformStringLookup.INSTANCE,
stringLookupFactory.javaPlatformStringLookup());
- Assertions.assertSame(InetAddressStringLookup.INSTANCE,
stringLookupFactory.localHostStringLookup());
+ Assertions.assertSame(InetAddressStringLookup.LOCAL_HOST,
stringLookupFactory.localHostStringLookup());
+ Assertions.assertSame(InetAddressStringLookup.LOOPACK_ADDRESS,
stringLookupFactory.loopbackAddressStringLookup());
Assertions.assertSame(StringLookupFactory.INSTANCE_NULL,
stringLookupFactory.nullStringLookup());
Assertions.assertSame(ResourceBundleStringLookup.INSTANCE,
stringLookupFactory.resourceBundleStringLookup());
Assertions.assertSame(ScriptStringLookup.INSTANCE,
stringLookupFactory.scriptStringLookup());
