5 Replies Latest reply on Jan 13, 2017 7:52 AM by Sandesh jayaprakash

    Unable to fetch process instance diagram on KIE server

    Sandesh jayaprakash Newbie

      I need to display the process instance image diagram in a custom UI.

      I am trying to fetch process instance image using the KIE server api as mentioned in the article below,

      Accelerate your business: jBPM UI extension on KIE Server

       

      Issue:

      I have followed all the steps as mentioned in the article but i am getting error,

       

      03:16:01,031 ERROR [org.kie.server.remote.rest.jbpm.ui.ImageResource] (http-0.0.0.0:8080-7) Unexpected error during processing null: java.lang.NullPointerException

              at org.kie.server.services.jbpm.ui.img.ImageReference.getImageContent(ImageReference.java:34) [kie-server-services-jbpm-ui-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]

              at org.kie.server.services.jbpm.ui.ImageServiceBase.getProcessImageAsBytes(ImageServiceBase.java:60) [kie-server-services-jbpm-ui-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]

              at org.kie.server.services.jbpm.ui.ImageServiceBase.getActiveProcessImage(ImageServiceBase.java:90) [kie-server-services-jbpm-ui-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]

              at org.kie.server.remote.rest.jbpm.ui.ImageResource.getProcessInstanceImage(ImageResource.java:83) [kie-server-rest-jbpm-ui-6.4.0.Final-redhat-3.jar:6.4.0.Final-redhat-3]

              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_101]

              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_101]

              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_101]

              at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_101]

              at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:168) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:269) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:227) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:216) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:560) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:542) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:130) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.15.Final-redhat-1.jar:]

              at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-2.jar:1.0.2.Final-redhat-2]

              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.5.10.Final-redhat-2.jar:7.5.10.Final-redhat-2]

              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:150) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:419) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.17.Final-redhat-1.jar:7.5.17.Final-redhat-1]

              at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101]