java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.jvnet.glassfish.comms.admin.config.ConfigAdapter.registerEventListeners(ConfigAdapter.java:223)
at org.jvnet.glassfish.comms.admin.config.ConfigAdapter.register(ConfigAdapter.java:134)
at org.jvnet.glassfish.comms.startup.SipContainer.registerConfig(SipContainer.java:249)
at org.jvnet.glassfish.comms.admin.pluggable.extensions.sip.SipAdminExtensionFeatureImpl.registerEventListeners(SipAdminExtensionFeatureImpl.java:101)
at com.sun.enterprise.server.ApplicationServer.onInitialization(ApplicationServer.java:287)
at com.sun.enterprise.server.ondemand.OnDemandServer.onInitialization(OnDemandServer.java:103)
at com.sun.enterprise.server.PEMain.run(PEMain.java:388)
at com.sun.enterprise.server.PEMain.main(PEMain.java:325)
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 com.sun.enterprise.server.PELaunch.main(PELaunch.java:415)

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