Revert "Bug 508734 - remove obsoleted org.objenesis references"

This reverts commit 57c52d0e8f1561efadf99d9282ef5b6594f1ccb4.
diff --git a/features/org.eclipse.sdk.tests/feature.xml b/features/org.eclipse.sdk.tests/feature.xml
index 05f6a6c..05ce18a 100644
--- a/features/org.eclipse.sdk.tests/feature.xml
+++ b/features/org.eclipse.sdk.tests/feature.xml
@@ -521,4 +521,11 @@
          version="0.0.0"
          unpack="false"/>
 
+   <plugin
+         id="org.objenesis"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
 </feature>