I don't see anything wrong with my fix, as it is clear that the
outputstream is using the converter
java.lang.Exception: conv is null
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:471)
at
org.apache.catalina.connector.CoyoteOutputStream.print(CoyoteOutputStream.java:113)
at
javax.servlet.ServletOutputStream.println(ServletOutputStream.java:242)
at
com.sun.ts.tests.servlet.common.util.ServletTestUtil.printResult(ServletTestUtil.java:320)
at
com.sun.ts.tests.servlet.api.common.response.ResponseTests.flushBufferTest(ResponseTests.java:126)
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:585)
at
com.sun.ts.tests.servlet.api.common.response.ResponseTestServlet.service(ResponseTestServlet.java:43)
at
com.sun.ts.tests.servlet.api.javax_servlet.servletresponsewrapper.TestServlet.service(TestServlet.java:36)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:888)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:624)
at
org.apache.tomcat.util.net.NioEndpoint$Worker.run(NioEndpoint.java:1467)
at java.lang.Thread.run(Thread.java:595)
Same test with the JIO connector
java.lang.Exception: conv is null
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:471)
at
org.apache.catalina.connector.CoyoteOutputStream.print(CoyoteOutputStream.java:113)
at
javax.servlet.ServletOutputStream.println(ServletOutputStream.java:242)
at
com.sun.ts.tests.servlet.common.util.ServletTestUtil.printResult(ServletTestUtil.java:320)
at
com.sun.ts.tests.servlet.api.common.response.ResponseTests.flushBufferTest(ResponseTests.java:126)
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:585)
at
com.sun.ts.tests.servlet.api.common.response.ResponseTestServlet.service(ResponseTestServlet.java:43)
at
com.sun.ts.tests.servlet.api.javax_servlet.servletresponsewrapper.TestServlet.service(TestServlet.java:36)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:818)
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)
Filip
Remy Maucherat wrote:
Filip Hanik - Dev Lists wrote:
I figured :). I'll revert and hunt down the root cause. My guess is
that if the response was used with output stream first, then recycled
and then used again, somehow the conv ends up being null and causes a
NPE in the write method.
Ok, and what does the stack trace look like exactly ?
Rémy
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