oracle.adf.share.ADFShareException: getMDSInstance error

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java.lang.ClassNotFoundException: oracle.core.ojdl.MessageType	at java.net.URLClassLoader$1.run(Unknown Source)	at java.net.URLClassLoader$1.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at oracle.dms.instrument.Level.initLevel(Level.java:215)	at oracle.dms.instrument.LogLevel.initLogLevel(LogLevel.java:41)	at oracle.dms.instrument.LogLevel.(LogLevel.java:23)	at oracle.dms.instrument.Noun.(Noun.java:2189)	at oracle.adf.share.perf.Timer.createTimer(Timer.java:258)	at oracle.adf.share.perf.Timer.createTimer(Timer.java:155)	at oracle.mds.internal.util.MDSTimer.(MDSTimer.java:349)	at oracle.mds.internal.util.MDSTimer.createTimer(MDSTimer.java:88)	at oracle.mds.core.MDSInstance.(MDSInstance.java:2317)	at oracle.adf.share.config.ADFMDSConfig.getDefaultMDSInstance(ADFMDSConfig.java:450)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at oracle.adf.share.config.FallbackConfigImpl.getMDSInstance(FallbackConfigImpl.java:64)	at oracle.adf.share.config.FallbackConfigImpl.getDefaultMDSInstance(FallbackConfigImpl.java:95)	at oracle.adf.share.config.ADFConfigImpl.getMDSInstance(ADFConfigImpl.java:648)	at oracle.adf.share.config.ADFConfigImpl.getMDSInstance(ADFConfigImpl.java:628)	at oracle.adf.share.config.ADFContextMDSConfigHelperImpl.getMDSInstance(ADFContextMDSConfigHelperImpl.java:274)	at oracle.adf.share.ADFContext.getMDSInstanceAsObject(ADFContext.java:1757)	at oracle.adf.share.http.ServletADFContext.initialize(ServletADFContext.java:494)	at oracle.adf.share.http.ServletADFContext.initThreadContext(ServletADFContext.java:401)	at oracle.adf.mbean.share.connection.ADFConnectionLifeCycleCallBack.contextInitialized(ADFConnectionLifeCycleCallBack.java:74)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:675)	at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:601)	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)	at org.apache.catalina.core.StandardService.start(StandardService.java:525)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)	at org.apache.catalina.startup.Catalina.start(Catalina.java:595)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)