| Encountering "Loader constraint violation" while running a JSF project [message #781112] |
Fri, 20 January 2012 10:17  |
Eclipse User |
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Hello,
I am using Eclipse (Indigo), Wasce 3.0 and DB2 for my project. I am just trying to deploy a JSF project with a single html file. I have added the JSF Mojarra library to the build path while creating the project. I am encountering the following error....
loader constraint violation: when resolving overridden method "org.apache.myfaces.taglib.core.SubviewTag.createVerbatimComponentFromBodyContent()Ljavax/faces/component/UIComponent;" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, org/apache/myfaces/taglib/core/SubviewTag, and its superclass loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader), have different Class objects for the type javax/faces/component/UIComponent used in the signature
java.lang.LinkageError: loader constraint violation: when resolving overridden method "org.apache.myfaces.taglib.core.SubviewTag.createVerbatimComponentFromBodyContent()Ljavax/faces/component/UIComponent;" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, org/apache/myfaces/taglib/core/SubviewTag, and its superclass loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader), have different Class objects for the type javax/faces/component/UIComponent used in the signature
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethods(Class.java:1791)
at org.apache.xbean.finder.AbstractFinder.readClassDef(AbstractFinder.java:603)
at org.apache.xbean.finder.ClassFinder.<init>(ClassFinder.java:134)
at org.apache.geronimo.jasper.deployment.JspModuleBuilderExtension.addGBeans(JspModuleBuilderExtension.java:164)
at org.apache.geronimo.tomcat.deployment.TomcatModuleBuilder.addGBeans(TomcatModuleBuilder.java:700)
at org.apache.geronimo.j2ee.deployment.SwitchingModuleBuilder.addGBeans(SwitchingModuleBuilder.java:174)
at org.apache.geronimo.j2ee.deployment.EARConfigBuilder.buildConfiguration(EARConfigBuilder.java:763)
at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:255)
at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke(ReflectionMethodInvoker.java:34)
at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:131)
at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:883)
at org.apache.geronimo.kernel.basic.BasicKernel.invoke(BasicKernel.java:245)
at org.apache.geronimo.kernel.KernelGBean.invoke(KernelGBean.java:344)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.geronimo.gbean.runtime.ReflectionMethodInvoker.invoke(ReflectionMethodInvoker.java:34)
at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:131)
at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:883)
at org.apache.geronimo.kernel.basic.BasicKernel.invoke(BasicKernel.java:245)
at org.apache.geronimo.system.jmx.MBeanGBeanBridge.invoke(MBeanGBeanBridge.java:172)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1427)
at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1367)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:788)
at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Please help me resolve the problem.
Can anyone suggest the proper way to configure eclipse for using JSF 2.0(including the pre-requisite conditions)? I have tried all the methods given in most of the internet sites.
Thank you.
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