Hello everyone,
I started looking for webSockets, and i found threads in the community :
wich i hoped they would lead me to good direction, but no.
Then i found one referring: https://technology.amis.nl/2013/07/30/adf-12c-using-websockets-to-implement-client-to-client-push-in-a-scalable-manner/
I download it, but is not working:
They all should show the same picture.
In console log it appears:
java.lang.NullPointerException
at nl.amis.pushy.view.ImageManager.processImageSelection(ImageManager.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.el.parser.AstValue.invoke(AstValue.java:254)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at oracle.adf.view.rich.event.ClientListenerSet.invokeCustomEventListeners(ClientListenerSet.java:175)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$DeliverClientEvent.invokeContextCallback(LifecycleImpl.java:1817)
at org.apache.myfaces.trinidad.component.UIXCollection.invokeOnComponent(UIXCollection.java:1312)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at javax.faces.component.UIComponent.invokeOnComponent(UIComponent.java:1426)
at javax.faces.component.UIComponentBase.invokeOnComponent(UIComponentBase.java:669)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_invokeCustomEvents(LifecycleImpl.java:618)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executePhase(LifecycleImpl.java:469)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:225)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:77)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.\_doFilterImpl(TrinidadFilterImpl.java:327)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:229)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:220)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)
<oracle.adf.view> <PartialResponseUtils> <handleError> <ADF_FACES-60096:Server Exception during PPR, #3>
java.lang.NullPointerException
at nl.amis.pushy.view.ImageManager.processImageSelection(ImageManager.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.el.parser.AstValue.invoke(AstValue.java:254)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at oracle.adf.view.rich.event.ClientListenerSet.invokeCustomEventListeners(ClientListenerSet.java:175)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$DeliverClientEvent.invokeContextCallback(LifecycleImpl.java:1817)
at org.apache.myfaces.trinidad.component.UIXCollection.invokeOnComponent(UIXCollection.java:1312)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnChildrenComponents(UIXComponentBase.java:2054)
at org.apache.myfaces.trinidad.component.UIXComponentBase.invokeOnComponent(UIXComponentBase.java:2184)
at javax.faces.component.UIComponent.invokeOnComponent(UIComponent.java:1426)
at javax.faces.component.UIComponentBase.invokeOnComponent(UIComponentBase.java:669)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_invokeCustomEvents(LifecycleImpl.java:618)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executePhase(LifecycleImpl.java:469)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:225)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:77)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.\_doFilterImpl(TrinidadFilterImpl.java:327)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:229)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:220)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)
<oracle.adf.common> <AdfDiagnosticsJarsVersionDumpImpl> <executeDump> <Path of the jars version dump :C:\Users\ccarvalho\Jdev12c\system12.1.3.0.41.140521.1008\DefaultDomain\servers\DefaultServer\adr\diag\ofm\defaultdomain\defaultserver\incident\incdir_462/adf_DiagnosticsJarsVersionDump31_i462.txt>
Is it because i´m using jdev12c and had to migrate(wich i think it shouldn´t be a problem)?
Can someone help, please?
What i really want to know is the concept, how to create them, what are they good for, etc... since i´m new in this.
Is there any good tutorial (wich works) to provide a clear introduction to websockets in jdev?
Thanks in advance.
Regards,
Carlos