diff --git a/org.flowable.designer.util/src/main/java/org/activiti/designer/util/extension/ExtensionUtil.java b/org.flowable.designer.util/src/main/java/org/activiti/designer/util/extension/ExtensionUtil.java
index 0e8a286..e9390e2 100644
--- a/org.flowable.designer.util/src/main/java/org/activiti/designer/util/extension/ExtensionUtil.java
+++ b/org.flowable.designer.util/src/main/java/org/activiti/designer/util/extension/ExtensionUtil.java
@@ -41,6 +41,7 @@
 import org.activiti.designer.util.eclipse.ExtensionConstants;
 import org.apache.commons.lang.StringUtils;
 import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectNature;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
@@ -99,18 +100,25 @@ public static void addProvidedCustomUserTaskDescriptors(List<CustomUserTaskDescr
     providedCustomUserTaskDescriptors.addAll(descriptors);
   }
 
-  public static final Set<PaletteEntry> getDisabledPaletteEntries(IProject project) {
-
-    Set<PaletteEntry> result = new HashSet<PaletteEntry>();
-
+  private static IJavaProject getJavaProject(IProject project) {
     // Determine the project
     IJavaProject javaProject = null;
     try {
-      javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
+      IProjectNature nature = project.getNature(JavaCore.NATURE_ID);
+      javaProject = nature instanceof IJavaProject
+        ? (IJavaProject) nature
+        : JavaCore.create(project);
     } catch (CoreException e) {
       // skip, not a Java project
     }
+    return javaProject;
+  }
+
+  public static final Set<PaletteEntry> getDisabledPaletteEntries(IProject project) {
+
+    Set<PaletteEntry> result = new HashSet<PaletteEntry>();
 
+    IJavaProject javaProject = getJavaProject(project);
     if (javaProject != null) {
 
       try {
@@ -442,14 +450,7 @@ public static List<CustomServiceTask> getCustomServiceTasks(final IProject proje
 
     List<CustomServiceTask> result = new ArrayList<CustomServiceTask>();
 
-    // Determine the project
-    IJavaProject javaProject = null;
-    try {
-      javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
-    } catch (CoreException e) {
-      // skip, not a Java project
-    }
-
+    IJavaProject javaProject = getJavaProject(project);
     if (javaProject != null) {
 
       // get the contexts first
@@ -477,14 +478,7 @@ public static List<CustomUserTask> getCustomUserTasks(final IProject project) {
 
     List<CustomUserTask> result = new ArrayList<CustomUserTask>();
 
-    // Determine the project
-    IJavaProject javaProject = null;
-    try {
-      javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
-    } catch (CoreException e) {
-      // skip, not a Java project
-    }
-
+    IJavaProject javaProject = getJavaProject(project);
     if (javaProject != null) {
 
       // get the contexts first
@@ -515,13 +509,7 @@ public static List<CustomServiceTaskContext> getCustomServiceTaskContexts(final
 
     addToCustomServiceTasks(result);
 
-    IJavaProject javaProject = null;
-    try {
-      javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
-    } catch (CoreException e) {
-      // skip, not a Java project
-    }
-
+    IJavaProject javaProject = getJavaProject(project);
     if (javaProject != null) {
 
       try {
@@ -654,13 +642,7 @@ public static List<CustomUserTaskContext> getCustomUserTaskContexts(final IProje
 
     addToCustomUserTasks(result);
 
-    IJavaProject javaProject = null;
-    try {
-      javaProject = (IJavaProject) project.getNature(JavaCore.NATURE_ID);
-    } catch (CoreException e) {
-      // skip, not a Java project
-    }
-
+    IJavaProject javaProject = getJavaProject(project);
     if (javaProject != null) {
 
       try {