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java.lang.NullPointerException: 	at oracle.bpm.bpmn.engine.service.BPMNServiceEngine.onApplicationEvent(BPMNServiceEngine.java:982)	at org.springframework.context.event.SimpleApplicationEventMulticaster$1.run(SimpleApplicationEventMulticaster.java:78)	at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:76)	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:274)	at oracle.integration.platform.blocks.deploy.DeploymentEventPublisher.invoke(DeploymentEventPublisher.java:84)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)	at $Proxy377.undeploy(Unknown Source)	at oracle.integration.platform.blocks.deploy.StandaloneCompositeDeploymentCoordinatorImpl.coordinateCompositeRedeploy(StandaloneCompositeDeploymentCoordinatorImpl.java:105)	at oracle.integration.platform.blocks.deploy.servlet.BaseDeployProcessor.overwriteExistingComposite(BaseDeployProcessor.java:435)	at oracle.integration.platform.blocks.deploy.servlet.BaseDeployProcessor.deploySARs(BaseDeployProcessor.java:253)	at oracle.integration.platform.blocks.deploy.servlet.DeployProcessor.doDeployWork(DeployProcessor.java:167)	at oracle.integration.platform.blocks.deploy.servlet.DeployProcessor.doDeployWork(DeployProcessor.java:112)	at oracle.integration.platform.blocks.deploy.servlet.DeployProcessor.doDeploy(DeployProcessor.java:99)	at oracle.integration.platform.blocks.deploy.servlet.DeployProcessor.process(DeployProcessor.java:81)	at oracle.integration.platform.blocks.deploy.servlet.CompositeDeployerServlet.doPostInsideLoggingSession(CompositeDeployerServlet.java:219)	at oracle.integration.platform.blocks.deploy.servlet.CompositeDeployerServlet.doPost(CompositeDeployerServlet.java:130)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)