Install and configure the jbpm-install. Launch the client application logging in as "krisv". Start the "Evaluation" process. Fill in the "Employee" and "Reason" values with the word "krisv". Click the "Submit" button. Go to the "Personal Tasks" tab. Click the "Refresh" button. Select the task listed and click "View". The resulting field shows the toString() of the org.jbpm.task.utils.MarshalledContentWrapper class. Really wanted to see the value contained in the string for the "reason" field. One possible fix is to modify the end of the TaskFormDispatcher.provideForm(FormAuthorityRef ref) with: if (input instanceof Map) { Map<?, ?> map = (Map) input; for (Map.Entry<?, ?> entry: map.entrySet()) { if (entry.getKey() instanceof String) { MarshalledContentWrapper val = (MarshalledContentWrapper)entry.getValue(); Environment env = EnvironmentFactory.newEnvironment(); ContentMarshallerContext cmc = new ContentMarshallerContext(); ObjectMarshallingStrategy[] strats = (ObjectMarshallingStrategy[])env.get(EnvironmentName.OBJECT_MARSHALLING_STRATEGIES); cmc.addStrategy(strats[0]); // Should only have one option here... Object o = ContentMarshallerHelper.unmarshall("org.drools.marshalling.impl.SerializablePlaceholderResolverStrategy", val.getContent(), cmc, env); renderContext.put((String) entry.getKey(), o); } } } Not sure, but there may be a more elegant solution.