Error Page

 33:          brokenBorderLink.setListener(this, "onBrokenBorderClick");
 34:          addControl(brokenBorderLink);
 35:  
 36:          ActionLink brokenContentLink = new ActionLink("brokenContentLink");
 37:          brokenContentLink.setListener(this, "onBrokenContentClick");
 38:          addControl(brokenContentLink);
 39:      }
 40:  
 41:      public boolean onNullPointerClick() {
 42:          Object object = null;
 43:          object.hashCode();
 44:          return true;
 45:      }
 46:  
 47:      public boolean onBrokenRendererClick() {
 48:          addModel("brokenRenderer", new BrokenRenderer());
 49:          return true;
 50:      }
 51:  
 52:      public boolean onBrokenBorderClick() {
 53:          setPath("broken-border.htm");

java.lang.NullPointerException
	at examples.page.ExceptionDemo.onNullPointerClick(ExceptionDemo.java:43)
	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:324)
	at org.apache.click.util.ClickUtils.invokeListener(ClickUtils.java:188)
	at org.apache.click.control.ActionLink.onProcess(ActionLink.java:510)
	at org.apache.click.ClickServlet.processPage(ClickServlet.java:324)
	at org.apache.click.ClickServlet.handleRequest(ClickServlet.java:210)
	at org.apache.click.ClickServlet.doGet(ClickServlet.java:154)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:534)