diff --git a/jbpm/jbpm-bpmn2/src/main/java/org/jbpm/bpmn2/xml/AbstractNodeHandler.java b/jbpm/jbpm-bpmn2/src/main/java/org/jbpm/bpmn2/xml/AbstractNodeHandler.java
index 9ccdd9f0c04..cfbd83e0fba 100755
--- a/jbpm/jbpm-bpmn2/src/main/java/org/jbpm/bpmn2/xml/AbstractNodeHandler.java
+++ b/jbpm/jbpm-bpmn2/src/main/java/org/jbpm/bpmn2/xml/AbstractNodeHandler.java
@@ -39,6 +39,7 @@
 import org.jbpm.bpmn2.core.Lane;
 import org.jbpm.bpmn2.core.SequenceFlow;
 import org.jbpm.bpmn2.core.Signal;
+import org.jbpm.compiler.canonical.builtin.ReturnValueEvaluatorBuilderService;
 import org.jbpm.compiler.xml.Handler;
 import org.jbpm.compiler.xml.Parser;
 import org.jbpm.compiler.xml.ProcessBuildData;
@@ -49,6 +50,8 @@
 import org.jbpm.process.core.context.variable.Variable;
 import org.jbpm.process.core.context.variable.VariableScope;
 import org.jbpm.process.core.datatype.DataTypeResolver;
+import org.jbpm.process.instance.impl.MVELInterpretedReturnValueEvaluator;
+import org.jbpm.process.instance.impl.ReturnValueEvaluator;
 import org.jbpm.ruleflow.core.RuleFlowProcess;
 import org.jbpm.ruleflow.core.WorkflowElementIdentifierFactory;
 import org.jbpm.util.PatternConstants;
@@ -572,7 +575,11 @@ private Transformation readTransformation(Element parent) {
         String lang = element.get().getAttribute("language");
         String expression = element.get().getTextContent();
 
-        return new Transformation(lang, expression);
+        ReturnValueEvaluator evaluator = null;
+        if (lang.toLowerCase().contains("mvel")) {
+            evaluator = new MVELInterpretedReturnValueEvaluator(expression);
+        }
+        return new Transformation(lang, expression, evaluator);
     }
 
     protected List<DataDefinition> readSources(org.w3c.dom.Node parent, Function<String, DataDefinition> variableResolver) {
diff --git a/jbpm/jbpm-flow/src/main/java/org/jbpm/process/instance/impl/XPATHReturnValueEvaluator.java b/jbpm/jbpm-flow/src/main/java/org/jbpm/process/instance/impl/XPATHReturnValueEvaluator.java
index 3c9fa372d66..8abd66e6265 100755
--- a/jbpm/jbpm-flow/src/main/java/org/jbpm/process/instance/impl/XPATHReturnValueEvaluator.java
+++ b/jbpm/jbpm-flow/src/main/java/org/jbpm/process/instance/impl/XPATHReturnValueEvaluator.java
@@ -42,7 +42,7 @@ public XPATHReturnValueEvaluator() {
         super("XPath", "true()");
     }
 
-    public XPATHReturnValueEvaluator(final String expression) {
+    public XPATHReturnValueEvaluator(String expression) {
         super("XPath", expression);
     }
 
diff --git a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2 b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2
similarity index 97%
rename from jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2
rename to jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2
index 69cbf479adf..ac0471bd5f3 100755
--- a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2
+++ b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelCollectionTransformation.bpmn2
@@ -41,7 +41,7 @@
     </operation>
   </interface>
 
-  <process processType="Private" isExecutable="true" id="ServiceProcess" name="Service Process" >
+  <process processType="Private" isExecutable="true" id="ServiceProcessWithMvelCollectionTransformation" name="Service Process" tns:packageName="org.jbpm.bpmn2.service" >
     <extensionElements>
       <tns:import name="java.util.Arrays"/>
     </extensionElements>
diff --git a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2 b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2
similarity index 97%
rename from jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2
rename to jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2
index 35c7edd85cc..774c3daabd8 100755
--- a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2
+++ b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelJaxbTransformation.bpmn2
@@ -40,7 +40,7 @@
     </operation>
   </interface>
 
-  <process processType="Private" isExecutable="true" id="ServiceProcessWithMvelJaxbTransformation" name="Service Process" >
+  <process processType="Private" isExecutable="true" id="ServiceProcessWithMvelJaxbTransformation" name="Service Process" tns:packageName="org.jbpm.bpmn2.service" >
     <extensionElements>
       <tns:import name="jakarta.xml.bind.JAXBContext"/>
       <tns:import name="java.io.StringReader"/>
diff --git a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelTransformation.bpmn2 b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelTransformation.bpmn2
similarity index 97%
rename from jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelTransformation.bpmn2
rename to jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelTransformation.bpmn2
index 2b1a8c1ca66..217d34edbfc 100755
--- a/jbpm/jbpm-tests/src/test/resources/BPMN2-ServiceProcessWithMvelTransformation.bpmn2
+++ b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/service/BPMN2-ServiceProcessWithMvelTransformation.bpmn2
@@ -40,7 +40,7 @@
     </operation>
   </interface>
 
-  <process processType="Private" isExecutable="true" id="ServiceProcessWithMvelTransformation" name="Service Process" >
+  <process processType="Private" isExecutable="true" id="ServiceProcessWithMvelTransformation" name="Service Process" tns:packageName="org.jbpm.bpmn2.service">
 
     <!-- process variables -->
     <property id="s" itemSubjectRef="_sItem"/>
diff --git a/jbpm/jbpm-tests/src/test/resources/BPMN2-SignalStartWithTransformation.bpmn2 b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/start/BPMN2-SignalStartWithTransformation.bpmn2
similarity index 95%
rename from jbpm/jbpm-tests/src/test/resources/BPMN2-SignalStartWithTransformation.bpmn2
rename to jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/start/BPMN2-SignalStartWithTransformation.bpmn2
index 73f8ff10dd3..92060fb056d 100644
--- a/jbpm/jbpm-tests/src/test/resources/BPMN2-SignalStartWithTransformation.bpmn2
+++ b/jbpm/jbpm-tests/src/test/bpmn/org/jbpm/bpmn2/start/BPMN2-SignalStartWithTransformation.bpmn2
@@ -32,7 +32,7 @@
 
   <itemDefinition id="_xItem" structureRef="String" />
 
-  <process processType="Private" isExecutable="true" id="Minimal" name="Minimal Process" tns:packageName="com.sample" >
+  <process processType="Private" isExecutable="true" id="SignalStartWithTransformation" name="Minimal Process" tns:packageName="org.jbpm.bpmn2.start" >
 
     <!-- process variables -->
     <property id="x" itemSubjectRef="_xItem"/>