Author: tschneider
Date: Sun Nov  4 10:50:44 2007
New Revision: 591816

URL: http://svn.apache.org/viewvc?rev=591816&view=rev
Log:
checking in the initial alpha version of a struts2 juel plugin

Added:
    struts/sandbox/trunk/struts2-juel-plugin/
    struts/sandbox/trunk/struts2-juel-plugin/pom.xml
    struts/sandbox/trunk/struts2-juel-plugin/src/
    struts/sandbox/trunk/struts2-juel-plugin/src/main/
    struts/sandbox/trunk/struts2-juel-plugin/src/main/java/
    struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/
    struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootELContext.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootVariableMapper.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionContextFactory.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionProvider.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStack.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStackFactory.java
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/PropertyValueExpression.java
    struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/
    
struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/struts-plugin.xml
    struts/sandbox/trunk/struts2-juel-plugin/src/test/
    struts/sandbox/trunk/struts2-juel-plugin/src/test/java/
    struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/
    struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/
    
struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/
    
struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/JuelTest.java

Added: struts/sandbox/trunk/struts2-juel-plugin/pom.xml
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/pom.xml?rev=591816&view=auto
==============================================================================
--- struts/sandbox/trunk/struts2-juel-plugin/pom.xml (added)
+++ struts/sandbox/trunk/struts2-juel-plugin/pom.xml Sun Nov  4 10:50:44 2007
@@ -0,0 +1,69 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/maven-v4_0_0.xsd";>
+       <modelVersion>4.0.0</modelVersion>
+       <groupId>com.googlecode.struts2juel</groupId>
+       <artifactId>struts2-juel-plugin</artifactId>
+       <packaging>jar</packaging>
+       <name>Struts 2 Juel Plugin</name>
+       <version>1.0.0-SNAPSHOT</version>
+       <build>
+               <plugins>
+                       <plugin>
+                               <artifactId>maven-compiler-plugin</artifactId>
+                               <configuration>
+                                       <source>1.5</source>
+                                       <target>1.5</target>
+                               </configuration>
+                       </plugin>
+               </plugins>
+       </build>
+       <scm>
+               <connection>
+                       
scm:svn:https://struts2scopeplugin.googlecode.com/svn/trunk/
+               </connection>
+               <developerConnection>
+                       
scm:svn:https://struts2scopeplugin.googlecode.com/svn/trunk/
+               </developerConnection>
+               <url>http://struts2scopeplugin.googlecode.com/svn/trunk/</url>
+       </scm>
+       <dependencies>
+               <dependency>
+                       <groupId>javax.servlet</groupId>
+                       <artifactId>servlet-api</artifactId>
+                       <version>2.4</version>
+                       <scope>provided</scope>
+               </dependency>
+               <dependency>
+                       <groupId>org.apache.struts</groupId>
+                       <artifactId>struts2-core</artifactId>
+                       <version>2.1.1-SNAPSHOT</version>
+               </dependency>
+               <dependency>
+                       <groupId>junit</groupId>
+                       <artifactId>junit</artifactId>
+                       <version>4.4</version>
+                       <scope>test</scope>
+               </dependency>
+               <dependency>
+                       <groupId>de.odysseus.juel</groupId>
+                       <artifactId>juel</artifactId>
+                       <version>2.1.0</version>
+               </dependency>
+               <dependency>
+                       <groupId>commons-beanutils</groupId>
+                       <artifactId>commons-beanutils</artifactId>
+                       <version>20030211.134440</version>
+               </dependency>
+               <dependency>
+                       <groupId>commons-collections</groupId>
+                       <artifactId>commons-collections</artifactId>
+                       <version>20040616</version>
+               </dependency>
+               <dependency>
+                       <groupId>commons-logging</groupId>
+                       <artifactId>commons-logging</artifactId>
+                       <version>1.1</version>
+               </dependency>
+       </dependencies>
+</project>
\ No newline at end of file

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootELContext.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootELContext.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootELContext.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootELContext.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,20 @@
+package com.googlecode.struts2juel;
+
+import javax.el.VariableMapper;
+
+import com.opensymphony.xwork2.util.CompoundRoot;
+
+import de.odysseus.el.util.SimpleContext;
+
+public class CompoundRootELContext extends SimpleContext {
+    private VariableMapper variableMapper;
+
+    public CompoundRootELContext(CompoundRoot root) {
+        variableMapper = new CompoundRootVariableMapper(root);
+    }
+
+    @Override
+    public VariableMapper getVariableMapper() {
+        return variableMapper;
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootVariableMapper.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootVariableMapper.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootVariableMapper.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/CompoundRootVariableMapper.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,37 @@
+package com.googlecode.struts2juel;
+
+import javax.el.ValueExpression;
+import javax.el.VariableMapper;
+
+import org.apache.commons.beanutils.PropertyUtils;
+
+import com.opensymphony.xwork2.util.CompoundRoot;
+
+public class CompoundRootVariableMapper extends VariableMapper {
+    private CompoundRoot root;
+    
+    public CompoundRootVariableMapper(CompoundRoot root) {
+        this.root = root;
+    }
+
+    @Override
+    public ValueExpression resolveVariable(String variable) {
+        if ("top".equals(variable) && root.size() > 0) {
+            return new PropertyValueExpression(root.get(0), variable);
+        }
+        for (int i = 0; i < root.size(); i++) {
+            if (PropertyUtils.isReadable(root.get(i), variable) ||
+                PropertyUtils.isWriteable(root.get(i), variable)) {
+                return new PropertyValueExpression(root.get(i), variable);
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public ValueExpression setVariable(String variable, ValueExpression 
valueExpression) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionContextFactory.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionContextFactory.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionContextFactory.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionContextFactory.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,13 @@
+package com.googlecode.struts2juel;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.opensymphony.xwork2.util.reflection.ReflectionContextFactory;
+
+public class JuelReflectionContextFactory implements ReflectionContextFactory {
+
+    public Map createDefaultContext(Object root) {
+        return new HashMap();
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionProvider.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionProvider.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionProvider.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelReflectionProvider.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,37 @@
+package com.googlecode.struts2juel;
+
+import java.util.Map;
+
+import javax.el.ELContext;
+import javax.el.ExpressionFactory;
+import javax.el.ValueExpression;
+
+import com.opensymphony.xwork2.ognl.OgnlReflectionProvider;
+import com.opensymphony.xwork2.util.CompoundRoot;
+import com.opensymphony.xwork2.util.reflection.ReflectionException;
+
+public class JuelReflectionProvider extends OgnlReflectionProvider {
+    ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
+
+    @Override
+    public Object getValue(String expr, Map context, Object root) throws 
ReflectionException {
+        CompoundRoot compoundRoot = new CompoundRoot();
+        compoundRoot.add(root);
+        ELContext elContext = new CompoundRootELContext(compoundRoot);
+        // parse our expression
+        ValueExpression valueExpr = factory.createValueExpression(elContext,
+            expr, String.class);
+        return (String) valueExpr.getValue(elContext);
+    }
+
+    @Override
+    public void setValue(String expr, Map context, Object root, Object value) 
throws ReflectionException {
+        CompoundRoot compoundRoot = new CompoundRoot();
+        compoundRoot.add(root);
+        ELContext elContext = new CompoundRootELContext(compoundRoot);
+        // parse our expression
+        ValueExpression valueExpr = factory.createValueExpression(elContext,
+            expr, String.class);
+        valueExpr.setValue(elContext, value);
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStack.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStack.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStack.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStack.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,142 @@
+package com.googlecode.struts2juel;
+
+import java.util.Map;
+import java.util.TreeMap;
+
+import javax.el.ELContext;
+import javax.el.ELException;
+import javax.el.ExpressionFactory;
+import javax.el.PropertyNotFoundException;
+import javax.el.ValueExpression;
+
+import com.opensymphony.xwork2.util.CompoundRoot;
+import com.opensymphony.xwork2.util.ValueStack;
+
+public class JuelValueStack implements ValueStack {
+    private CompoundRoot root = new CompoundRoot();
+    private transient Map context;
+    private Class defaultType;
+    private Map overrides;
+
+    ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
+
+    ELContext elContext;
+
+    public JuelValueStack() {
+        setRoot(new CompoundRoot());
+    }
+
+    public JuelValueStack(ValueStack vs) {
+        setRoot(new CompoundRoot(vs.getRoot()));
+    }
+
+    public String findString(String expr) {
+        return (String) findValue(expr, String.class);
+    }
+
+    public Object findValue(String expr) {
+        return findValue(expr, Object.class);
+    }
+
+    public Object findValue(String expr, Class asType) {
+        try {
+            if(expr != null && expr.startsWith("#")) {
+                int firstDot = expr.indexOf('.');
+                String key = expr.substring(1, firstDot);
+                String value = expr.substring(firstDot + 1);
+                Map map = (Map) context.get(key);
+                return map.get(value);
+            }
+            if(expr != null && expr.startsWith("%{")) {
+                // replace %{ with ${
+                expr = expr.substring(1);
+            }
+            if(expr != null && !expr.startsWith("${")) {
+                expr = "${" + expr + "}";
+            }
+            // parse our expression
+            ValueExpression valueExpr = factory.createValueExpression(
+                elContext, expr, asType);
+            Object retVal = valueExpr.getValue(elContext);
+            return retVal;
+        } catch(PropertyNotFoundException e) {
+            // property not found
+            return null;
+        } catch(ELException e) {
+            // fail silently so we don't mess things up
+            return null;
+        }
+    }
+
+    public Map getContext() {
+        return context;
+    }
+
+    public Map getExprOverrides() {
+        return overrides;
+    }
+
+    public CompoundRoot getRoot() {
+        return root;
+    }
+
+    public Object peek() {
+        return root.peek();
+    }
+
+    public Object pop() {
+        return root.pop();
+    }
+
+    public void push(Object o) {
+        root.push(o);
+    }
+
+    public void set(String key, Object o) {
+        // TODO : what to do here?
+    }
+
+    public void setDefaultType(Class defaultType) {
+        this.defaultType = defaultType;
+    }
+
+    public void setExprOverrides(Map overrides) {
+        this.overrides = overrides;
+    }
+
+    public void setValue(String expr, Object value) {
+        setValue(expr, value, false);
+    }
+
+    public void setValue(String expr, Object value,
+        boolean throwExceptionOnFailure) {
+        try {
+            if(expr != null && !expr.startsWith("${")) {
+                expr = "${" + expr + "}";
+            }
+            if(value != null && value instanceof String[]
+                && ((String[]) value).length == 1) {
+                value = ((String[]) value)[0];
+            }
+            // parse our expression
+            ValueExpression valueExpr = factory.createValueExpression(
+                elContext, expr, Object.class);
+            valueExpr.setValue(elContext, value);
+        } catch(ELException e) {
+            if(throwExceptionOnFailure) {
+                throw e;
+            }
+        }
+    }
+
+    public int size() {
+        return root.size();
+    }
+
+    protected void setRoot(CompoundRoot root) {
+        this.context = new TreeMap();
+        context.put(VALUE_STACK, this);
+        this.root = root;
+        this.elContext = new CompoundRootELContext(root);
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStackFactory.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStackFactory.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStackFactory.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/JuelValueStackFactory.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,15 @@
+package com.googlecode.struts2juel;
+
+import com.opensymphony.xwork2.util.ValueStack;
+import com.opensymphony.xwork2.util.ValueStackFactory;
+
+public class JuelValueStackFactory implements ValueStackFactory {
+
+    public ValueStack createValueStack() {
+        return new JuelValueStack();
+    }
+
+    public ValueStack createValueStack(ValueStack stack) {
+        return new JuelValueStack(stack);
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/PropertyValueExpression.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/PropertyValueExpression.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/PropertyValueExpression.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/java/com/googlecode/struts2juel/PropertyValueExpression.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,102 @@
+package com.googlecode.struts2juel;
+
+import java.lang.reflect.InvocationTargetException;
+
+import javax.el.ELContext;
+import javax.el.ValueExpression;
+
+import org.apache.commons.beanutils.PropertyUtils;
+
+public class PropertyValueExpression extends ValueExpression {
+    private Object object;
+    private String property;
+    
+    public PropertyValueExpression(Object object, String property) {
+        this.object = object;
+        this.property = property;
+    }
+
+    @Override
+    public Class<?> getExpectedType() {
+        try {
+            return PropertyUtils.getPropertyType(object, property);
+        } catch(IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch(InvocationTargetException e) {
+            throw new RuntimeException(e);
+        } catch(NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public Class<?> getType(ELContext arg0) {
+        try {
+            return PropertyUtils.getPropertyType(object, property);
+        } catch(IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch(InvocationTargetException e) {
+            throw new RuntimeException(e);
+        } catch(NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public Object getValue(ELContext arg0) {
+        try {
+            return PropertyUtils.getSimpleProperty(object, property);
+        } catch(IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch(InvocationTargetException e) {
+            throw new RuntimeException(e);
+        } catch(NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public boolean isReadOnly(ELContext arg0) {
+        return PropertyUtils.isWriteable(object, property);
+    }
+
+    @Override
+    public void setValue(ELContext arg0, Object obj) {
+        try {
+            PropertyUtils.setSimpleProperty(object, property, obj);
+        } catch(IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch(InvocationTargetException e) {
+            throw new RuntimeException(e);
+        } catch(NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public boolean equals(Object otherObject) {
+        if (otherObject != null && otherObject.getClass() == getClass()) {
+                PropertyValueExpression other = 
(PropertyValueExpression)otherObject;
+                if (property != other.property) {
+                        return false;
+                }
+                return object == other.object || object != null && 
object.equals(other.object);
+        }
+        return false;
+    }
+
+    @Override
+    public String getExpressionString() {
+        return null;
+    }
+
+    @Override
+    public int hashCode() {
+        return property.hashCode();
+    }
+
+    @Override
+    public boolean isLiteralText() {
+        return false;
+    }
+}

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/struts-plugin.xml
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/struts-plugin.xml?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/struts-plugin.xml 
(added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/main/resources/struts-plugin.xml 
Sun Nov  4 10:50:44 2007
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<!DOCTYPE struts PUBLIC
+    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
+    "http://struts.apache.org/dtds/struts-2.0.dtd";>
+    
+<struts>
+       <bean type="com.opensymphony.xwork2.util.ValueStackFactory" name="juel" 
class="com.googlecode.struts2juel.JuelValueStackFactory" />
+       <bean type="com.opensymphony.xwork2.util.reflection.ReflectionProvider" 
name="juel" class="com.googlecode.struts2juel.JuelReflectionProvider" />        
+       <bean 
type="com.opensymphony.xwork2.util.reflection.ReflectionContextFactory" 
name="juel" class="com.googlecode.struts2juel.JuelReflectionContextFactory" />
+
+    <constant name="struts.valueStackFactory" value="juel" />
+    <constant name="struts.reflectionProvider" value="juel" />
+    <constant name="struts.reflectionContextFactory" value="juel" />
+</struts>
\ No newline at end of file

Added: 
struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/JuelTest.java
URL: 
http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/JuelTest.java?rev=591816&view=auto
==============================================================================
--- 
struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/JuelTest.java
 (added)
+++ 
struts/sandbox/trunk/struts2-juel-plugin/src/test/java/com/googlecode/struts2juel/JuelTest.java
 Sun Nov  4 10:50:44 2007
@@ -0,0 +1,54 @@
+package com.googlecode.struts2juel;
+
+import java.lang.reflect.InvocationTargetException;
+
+import javax.el.ExpressionFactory;
+
+import junit.framework.TestCase;
+
+import com.opensymphony.xwork2.util.CompoundRoot;
+
+public class JuelTest extends TestCase {
+    public void testBasicFind() throws IllegalAccessException,
+        InvocationTargetException, NoSuchMethodException {
+        ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
+
+        CompoundRoot root = new CompoundRoot();
+        TestObject obj = new TestObject();
+        root.add(obj);
+        JuelValueStack stack = new JuelValueStack();
+        stack.setRoot(root);
+        stack.setValue("${value}", "Hello World");
+        String value = stack.findString("${value}");
+        assertEquals("Hello World", value);
+    }
+
+    public void testNotFound() throws IllegalAccessException,
+        InvocationTargetException, NoSuchMethodException {
+        ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
+
+        CompoundRoot root = new CompoundRoot();
+        TestObject obj = new TestObject();
+        root.add(obj);
+        JuelValueStack stack = new JuelValueStack();
+        stack.setRoot(root);
+        stack.setValue("${value}", "Hello World");
+        String value = stack.findString("${VALUENOTHERE}");
+        assertNull(value);
+
+        value = stack.findString("VALUENOTHERE");
+        assertNull(value);
+    }
+
+    public class TestObject {
+        private String value;
+
+        public String getValue() {
+            return value;
+        }
+
+        public void setValue(String value) {
+            this.value = value;
+        }
+    }
+}


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