[JIRA] [core] (JENKINS-21695) IllegalStateException: WRITER masks original exception

Thu, 06 Feb 2014 11:09:54 -0800

Issue Type: Bug Bug
Assignee: Unassigned
Components: core
Created: 06/Feb/14 7:09 PM
Description:

A RuntimeException is thrown inside HttpResponseRenderer. Rather than printing this stack trace to the log, I get

[ERROR] /jenkins/$stapler/bound/db022930-dbbe-4ded-8c68-8690f97920f3/stuff
java.lang.IllegalStateException: WRITER
	at org.mortbay.jetty.Response.getOutputStream(Response.java:531)
	at javax.servlet.ServletResponseWrapper.getOutputStream(ServletResponseWrapper.java:112)
	at org.kohsuke.stapler.compression.CompressionServletResponse.activateCompressionIfNecessary(CompressionServletResponse.java:44)
	at org.kohsuke.stapler.compression.CompressionServletResponse.setHeader(CompressionServletResponse.java:31)
	at javax.servlet.http.HttpServletResponseWrapper.setHeader(HttpServletResponseWrapper.java:160)
	at org.kohsuke.stapler.ResponseImpl.getCompressedOutputStream(ResponseImpl.java:278)
	at org.kohsuke.stapler.jelly.DefaultScriptInvoker.createOutputStream(DefaultScriptInvoker.java:88)
	at org.kohsuke.stapler.jelly.DefaultScriptInvoker.createXMLOutput(DefaultScriptInvoker.java:68)
	at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:51)
	at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:95)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:631)
	at hudson.init.impl.InstallUncaughtExceptionHandler$1.reportException(InstallUncaughtExceptionHandler.java:27)
	at org.kohsuke.stapler.compression.CompressionFilter.reportException(CompressionFilter.java:63)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:58)
	at ...


which is not exactly helpful. It seems that rsp.getWriter() has already been called, and Jetty correctly rejects the attempt to call rsp.setHeader("Content-Encoding","gzip").
Environment: 1.551 using hpi:run (Jetty)
Project: Jenkins
Labels: stapler
Priority: Major Major
Reporter: Jesse Glick
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