diff --git a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/concurrent/EventHnadlingTest.java b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/concurrent/EventHnadlingTest.java
index e63d7592ed..8c1b5e9462 100644
--- a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/concurrent/EventHnadlingTest.java
+++ b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/concurrent/EventHnadlingTest.java
@@ -117,6 +117,8 @@ public void testRunMultiEventProcessPerRequestRuntimeManager() {
         
         processInstance = ksession.getProcessInstance(processInstance.getId());
         assertNull(processInstance);
+
+
         
         // close manager which will close session maintained by the manager
         manager.close();
@@ -173,6 +175,8 @@ public void testRunMultiEventProcessPerProcessInstanceRuntimeManager() {
         
         processInstance = ksession.getProcessInstance(processInstance.getId());
         assertNull(processInstance);
+
+        manager.disposeRuntimeEngine(runtime);
         
         // close manager which will close session maintained by the manager
         manager.close();
diff --git a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerCaseRuntimeManagerTest.java b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerCaseRuntimeManagerTest.java
index f474479511..8de30f6337 100644
--- a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerCaseRuntimeManagerTest.java
+++ b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerCaseRuntimeManagerTest.java
@@ -364,6 +364,7 @@ public void beforeProcessStarted(ProcessStartedEvent event) {
         assertEquals(ksession1Id, ksessionUsed.iterator().next().longValue());
         
         
+        manager.disposeRuntimeEngine(runtime);
         manager.close();
     }
     
diff --git a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerRequestRuntimeManagerTest.java b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerRequestRuntimeManagerTest.java
index 97c92b500b..c038c156a3 100644
--- a/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerRequestRuntimeManagerTest.java
+++ b/jbpm-runtime-manager/src/test/java/org/jbpm/runtime/manager/impl/PerRequestRuntimeManagerTest.java
@@ -557,7 +557,7 @@ public void testMultiplePerRequestManagerFromSingleThread() {
         assertEquals(ProcessInstance.STATE_ACTIVE, processInstance2.getState());
         
         manager.disposeRuntimeEngine(runtime1);
-        manager.disposeRuntimeEngine(runtime2);
+        manager2.disposeRuntimeEngine(runtime2);
         
         // close manager which will close session maintained by the manager
         manager.close();