Jdeveloper version – 12.2.1.0.0, Java version - 8
I am facing the below issue only when I use generics in my methods. If generics are removed then it's working fine.
I have a method defined in my AMImpl class which takes in a HashMap as an input parameter. The method reads the values from the input HashMap and prints it. It also has another HashMap defined with a value and returns the same.
public Map<Object,Object> callAmMethod(HashMap<Object,Object> paramMap) {
Map\<Object,Object> returnMap = paramMap;
System.out.println("Name 1 in AM : " + paramMap.get("name1") + "");
returnMap.put("name2", "Name 2 ");
return returnMap;
}
I have a method defined in my bean (invoked on click of a button on my page) which calls the method in AMImpl class and displays the return HashMap values.
public String callBeanMethod() {
HashMap\<Object,Object> paramMap = new HashMap\<Object,Object>();
HashMap\<Object,Object> returnMap = new HashMap\<Object,Object>();
paramMap.put("name1", "Name 1");
oper = bindings.getOperationBinding("callAmMethod");
oper.getParamsMap().put("paramMap", paramMap);
returnMap = (HashMap<Object,Object>)oper.execute();
System.out.println("Name 1 in Bean : " + paramMap.get("name1") + "");
System.out.println("Name 2 in Bean : " + paramMap.get("name2") + "");
return null;
}
When I execute the method, I am getting the below error
Name 1 in Bean : Name 1
Name 2 in Bean : null
<oracle.adf.view> <Utils> <buildFacesMessage> <ADF: Adding the following JSF error message: java.util.HashMap<java.lang.Object, java.lang.Object>>
-
java.lang.ClassNotFoundException: java.util.HashMap<java.lang.Object, java.lang.Object>
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:981)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:942)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:83)
at weblogic.utils.classloaders.GenericClassLoader.doFindClass(GenericClassLoader.java:564)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:500)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:464)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:441)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:53)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at oracle.jbo.common.java2.JDK2ClassLoader.loadClassForName(JDK2ClassLoader.java:37)
at oracle.jbo.common.JBOClass.forName(JBOClass.java:177)
at oracle.jbo.domain.TypeFactory.get(TypeFactory.java:557)
at oracle.jbo.domain.TypeFactory.getInstance(TypeFactory.java:354)
at oracle.adf.model.binding.DCMethodParameterDef.resolveParameterValue(DCMethodParameterDef.java:186)
at oracle.adf.model.binding.DCMethodParameter.resolveParameterValue(DCMethodParameter.java:57)
at oracle.adf.model.binding.DCInvokeMethod.fetchAndSaveParameterValues(DCInvokeMethod.java:340)
at oracle.adf.model.binding.DCInvokeMethod.callMethod(DCInvokeMethod.java:240)
at oracle.jbo.uicli.binding.JUCtrlActionBinding.doIt(JUCtrlActionBinding.java:1725)
at oracle.adf.model.binding.DCDataControl.invokeOperation(DCDataControl.java:2294)
at oracle.jbo.uicli.binding.JUCtrlActionBinding.invoke(JUCtrlActionBinding.java:785)
at oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.executeEvent(PageLifecycleImpl.java:414)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.\_execute(FacesCtrlActionBinding.java:254)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.execute(FacesCtrlActionBinding.java:212)
**at com.am.test.view.action.MethodBean.callBeanMethod(MethodBean.java:27)**
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181)
at com.sun.el.parser.AstValue.invoke(AstValue.java:289)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_invokeApplication(LifecycleImpl.java:1207)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executeInvokeApplication(LifecycleImpl.java:607)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executePhase(LifecycleImpl.java:348)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:224)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:650)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:194)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.\_doFilterImpl(TrinidadFilterImpl.java:354)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:232)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:141)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:649)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:124)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:232)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:94)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:224)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3654)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3620)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:326)
at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:196)
at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2423)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2280)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2258)
at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1626)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1586)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:270)
at weblogic.invocation.ComponentInvocationContextManager.\_runAs(ComponentInvocationContextManager.java:348)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:333)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:54)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:617)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:397)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:346)
<oracle.adf.view> <Utils> <buildFacesMessage> <ADF: Adding the following JSF error message: java.util.HashMap<java.lang.Object, java.lang.Object>>
-
java.lang.ClassNotFoundException: java.util.HashMap<java.lang.Object, java.lang.Object>
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:981)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:942)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:83)
at weblogic.utils.classloaders.GenericClassLoader.doFindClass(GenericClassLoader.java:564)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:500)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:464)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:441)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:53)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at oracle.jbo.common.java2.JDK2ClassLoader.loadClassForName(JDK2ClassLoader.java:37)
at oracle.jbo.common.JBOClass.forName(JBOClass.java:177)
at oracle.jbo.domain.TypeFactory.get(TypeFactory.java:557)
at oracle.jbo.domain.TypeFactory.getInstance(TypeFactory.java:354)
at oracle.adf.model.binding.DCMethodParameterDef.resolveParameterValue(DCMethodParameterDef.java:186)
at oracle.adf.model.binding.DCMethodParameter.resolveParameterValue(DCMethodParameter.java:57)
at oracle.adf.model.binding.DCInvokeMethod.fetchAndSaveParameterValues(DCInvokeMethod.java:340)
at oracle.adf.model.binding.DCInvokeMethod.callMethod(DCInvokeMethod.java:240)
at oracle.jbo.uicli.binding.JUCtrlActionBinding.doIt(JUCtrlActionBinding.java:1725)
at oracle.adf.model.binding.DCDataControl.invokeOperation(DCDataControl.java:2294)
at oracle.jbo.uicli.binding.JUCtrlActionBinding.invoke(JUCtrlActionBinding.java:785)
at oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.executeEvent(PageLifecycleImpl.java:414)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.\_execute(FacesCtrlActionBinding.java:254)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.execute(FacesCtrlActionBinding.java:212)
at com.am.test.view.action.MethodBean.callBeanMethod(MethodBean.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181)
at com.sun.el.parser.AstValue.invoke(AstValue.java:289)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_invokeApplication(LifecycleImpl.java:1207)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executeInvokeApplication(LifecycleImpl.java:607)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.\_executePhase(LifecycleImpl.java:348)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:224)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:650)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:194)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)