[jruby-dev] [jira] (JRUBY-6939) Intermittent Errno::EBADF from RubyKernel.puts when using ScriptingContainer

[Trejkaz (JIRA)]

Trejkaz created JRUBY-6939 Intermittent Errno::EBADF from RubyKernel.puts when using ScriptingContainer Issue Type: Bug Affects Versions: JRuby 1.7.0.RC2 Assignee: Unassigned Components: Embedding Created: 15/Oct/12 7:30 PM Description: We have various unit tests which instantiate a ScriptingContainer, run tests against it and then terminate it. Various other people report a similar issue of Errno::EBADF from JRuby when embedding it, but in their cases their issue was resolved by properly terminating the container. In our case, the test is already terminating the container during tearDown(). org.jruby.embed.EvalFailedException: (Errno::EBADF) Bad file descriptor at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:133) at org.jruby.embed.ScriptingContainer.runUnit(ScriptingContainer.java:1263) at org.jruby.embed.ScriptingContainer.runScriptlet(ScriptingContainer.java:1256) at com.acme.integration.vendor.jruby.TestScriptingContainer.runScriptlet(TestScriptingContainer.java:126) at com.acme.integration.vendor.jruby.TestScriptingContainer.testMiniTestAutoRun(TestScriptingContainer.java:60) [omitting test framework stuff] Caused by: org.jruby.exceptions.RaiseException: (Errno::EBADF) Bad file descriptor at org.jruby.RubyIO.write(org/jruby/RubyIO.java:1401) at org.jruby.RubyIO.write(org/jruby/RubyIO.java:2378) at org.jruby.RubyIO.puts(org/jruby/RubyIO.java:2333) at org.jruby.RubyKernel.puts(org/jruby/RubyKernel.java:552) at RUBY.(root)(<script>:7) The common thing with all the tests is that they print output and then assert it once back in Java land. Here's an example of the sort of test we run (I just simplified the test itself down to print a literal value. Everything else is the same.) ScriptingContainer container; String errorOutput; String output; @Test public void testNumber() throws Exception { runScriptlet("puts 3") assertEquals("Wrong result printed", "3", output.trim()); assertEquals("Wrong result printed", "", errorOutput.trim()); } private Object runScriptlet(String script) { StringWriter writer = new StringWriter(); container.setWriter(writer); StringWriter errorWriter = new StringWriter(); container.setErrorWriter(errorWriter); Object result = container.runScriptlet(script); output = writer.toString(); errorOutput = errorWriter.toString(); return result; } @Before public void setUp() throws Exception { container = new ScriptingContainer(); } @After public void tearDown() throws Exception { if (container != null) { container.terminate(); } } I have never seen the same sort failure in TestScriptEngine, which suggests that this is some kind of embedding issue specific to ScriptingContainer. Project: JRuby Priority: Minor Reporter: Trejkaz

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