Fix tests
diff --git a/org.eclipse.scout.sdk.s2e.test/pom.xml b/org.eclipse.scout.sdk.s2e.test/pom.xml
index a2385b8..398aaf3 100644
--- a/org.eclipse.scout.sdk.s2e.test/pom.xml
+++ b/org.eclipse.scout.sdk.s2e.test/pom.xml
@@ -64,6 +64,11 @@
       <scope>test</scope>
     </dependency>
     <dependency>
+      <groupId>org.eclipse.jdt</groupId>
+      <artifactId>org.eclipse.jdt.core.manipulation</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
       <groupId>org.eclipse.platform</groupId>
       <artifactId>org.eclipse.debug.core</artifactId>
       <scope>test</scope>
diff --git a/org.eclipse.scout.sdk.s2e/src/main/java/org/eclipse/scout/sdk/s2e/operation/OrganizeImportOperation.java b/org.eclipse.scout.sdk.s2e/src/main/java/org/eclipse/scout/sdk/s2e/operation/OrganizeImportOperation.java
index 3d2d485..47ea7ac 100644
--- a/org.eclipse.scout.sdk.s2e/src/main/java/org/eclipse/scout/sdk/s2e/operation/OrganizeImportOperation.java
+++ b/org.eclipse.scout.sdk.s2e/src/main/java/org/eclipse/scout/sdk/s2e/operation/OrganizeImportOperation.java
@@ -13,6 +13,7 @@
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.manipulation.JavaManipulation;
 import org.eclipse.jdt.core.manipulation.OrganizeImportsOperation;
 import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
 import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings;
@@ -48,6 +49,9 @@
 
   @Override
   public void run(IProgressMonitor monitor, IWorkingCopyManager workingCopyManager) throws CoreException {
+    if (JavaManipulation.getPreferenceNodeId() == null) {
+      return; // not configured. throws IllegalArgumentException. Do not organize imports
+    }
     ICompilationUnit unit = getCompilationUnit();
     CodeGenerationSettings settings = JavaPreferencesSettings.getCodeGenerationSettings(unit.getJavaProject());
     OrganizeImportsOperation organizeImps = new OrganizeImportsOperation(unit, null, settings.importIgnoreLowercase, !unit.isWorkingCopy(), true, null);