[jboss-jira] [JBoss JIRA] Created: (JBWEB-77) Servlet throws NPE the first time it is hit.

[Phillip Thurmond (JIRA)]

Servlet throws NPE the first time it is hit.
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                 Key: JBWEB-77
                 URL: http://jira.jboss.com/jira/browse/JBWEB-77
             Project: JBoss Web
          Issue Type: Bug
      Security Level: Public (Everyone can see)
            Reporter: Phillip Thurmond
         Assigned To: Mladen Turk
            Priority: Blocker


The first time a servlet is hit, it throws a NPE.  After the exception is thrown, the servlet works correctly.  Here is the stack trace.  Example war attached.

java.lang.NullPointerException
        at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:471)
        at org.apache.catalina.connector.CoyoteOutputStream.print(CoyoteOutputStream.java:113)
        at test.TestServlet.doGet(TestServlet.java:67)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        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)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:624)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
        at java.lang.Thread.run(Thread.java:595)


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