BZ-1036761 - It is not possible to restore a ksession on Oracle11gR2 …

…due to RuntimeException: Unable to begin transaction

(cherry picked from commit f67a81b)

jbpm-flow/src/main/java/org/jbpm/process/core/timer/impl/ThreadPoolSchedulerService.java

@@ -21,6 +21,7 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicLong;
 
@@ -64,7 +65,20 @@ public ThreadPoolSchedulerService(int poolSize) {
     public void initScheduler(TimerService globalTimerService) {
         this.globalTimerService = globalTimerService;
 
-        this.scheduler = new ScheduledThreadPoolExecutor(poolSize);
+        this.scheduler = new ScheduledThreadPoolExecutor(poolSize, new ThreadFactory() {
+
+			@Override
+			public Thread newThread(Runnable runnable) {
+
+				return new Thread(runnable) {
+
+					@Override
+					public void interrupt() {
+						// do nothing to not impact parts like transaction log in bitronix
+					}
+				};
+			}
+		});
     }
 
     @Override

jbpm-test/src/main/java/org/jbpm/test/JbpmJUnitBaseTestCase.java

@@ -190,6 +190,7 @@ public void setUp() throws Exception {
     @After
     public void tearDown() throws Exception {
         clearHistory();
+        disposeRuntimeManager();
         if (setupDataSource) {
             if (emf != null) {
                 emf.close();
@@ -199,8 +200,7 @@ public void tearDown() throws Exception {
                 ds.close();
                 ds = null;
             }
-        }
-        disposeRuntimeManager();
+        }        
     }
 
     /**