#532 NullPointerException using ChartUtilities.writeImageMap()

[Anonymous]

A NullPointerException is being thrown when you use the
ChartUtilities.writeImageMap() method with a null for
the toolTipTagFragmentGenerator parameter.

Stack Trace:
-----------------------------------------------------------------------------

java.lang.NullPointerException
at
org.jfree.chart.entity.ChartEntity.getImageMapAreaTag(ChartEntity.java:313)
at
org.jfree.chart.imagemap.ImageMapUtilities.getImageMap(ImageMapUtilities.java:185)
at
org.jfree.chart.ChartUtilities.writeImageMap(ChartUtilities.java:740)
at
com.nhbb.crs.graph.PerformanceChart.generateBarChart(PerformanceChart.java:117)
at
org.apache.jsp.delivery_005fgraph_jsp._jspService(org.apache.jsp.delivery_005fgraph_jsp:167)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:673)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:464)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at
com.nhbb.j2ee.waf.controller.ControllerServlet.doProcess(ControllerServlet.java:59)
at
com.nhbb.j2ee.waf.controller.ControllerServlet.doPost(ControllerServlet.java:39)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
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
com.nhbb.crs.signon.SignOnFilter.doFilter(SignOnFilter.java:92)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)

[David Gilbert]

Logged In: YES
user_id=112975
Originator: NO

I've updated the API docs to indicate that null arguments will cause trouble if the chart has tooltips or URLs.