NullPointerException is shown when accessing the Structure tab for a Part from Microsoft Internet Explorer or Mozilla Firefox in Windchill PDMLink

• NullPointerException is shown when accessing the Structure tab for a Part from Microsoft Internet Explorer or Mozilla Firefox.
• NullPointerException is shown when accessing the Structure tab for a Process Plan from Microsoft Internet Explorer or Mozilla Firefox.
• Part Structure page can be accessed successfully from Google Chrome.
• Getting Null Pointer Exception when trying to add Child Part in Structure Tab of a Parent Part
• Method Server log reports the following error:

ERROR : com.ptc.cat.ops.server.DefaultOperationDispatcher w00201278 - java.lang.NullPointerException
java.lang.RuntimeException: java.lang.NullPointerException
at com.ptc.cat.config.server.AbstractComponentConfigBuilder.buildComponentConfig(AbstractComponentConfigBuilder.java:349)
at com.ptc.cat.ops.server.internal.GetConfigurationOperation.buildConfig(GetConfigurationOperation.java:169)
at com.ptc.cat.ops.server.internal.GetConfigurationOperation.run(GetConfigurationOperation.java:115)
at com.ptc.cat.ops.server.DefaultOperationDispatcher.dispatch(DefaultOperationDispatcher.java:125)
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.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:562)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:544)
at com.ptc.mvc.gwt.GwtHandlerAdapter.processCall(GwtHandlerAdapter.java:162)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:224)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at com.ptc.mvc.gwt.GwtHandlerAdapter.handle(GwtHandlerAdapter.java:117)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:774)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)