[jboss-jira] [JBoss JIRA] Closed: (JBMICROCONT-115) VirtualFile.finalize closing stream causes read errors on in use streams

VirtualFile.finalize closing stream causes read errors on in use streams ------------------------------------------------------------------------ Key: JBMICROCONT-115 URL: http://jira.jboss.com/jira/browse/JBMICROCONT-115 Project: JBoss MicroContainer Issue Type: Bug Components: VFS Affects Versions: JBossMC_2_0_0 Beta Reporter: Scott M Stark Assigned To: Scott M Stark Fix For: JBossMC_2_0_0_CR1 In looking into the JBAS-3867 read error, I found that the VirtualFile finalizer behavior of closing the open streams is causing active streams to fail: 06:29:10,515 ERROR [STDERR] java.io.FileInputStream@ba8af9 failed, fd=java.io.FileDescriptor@13c339f[fd=-1,handle=-1,prevHandle=4652], isValid=false, java.io.IOException: Read error 06:29:10,515 ERROR [STDERR] java.io.FileInputStream@ba8af9, fd=4652 already closed at: 06:29:10,515 ERROR [STDERR] java.lang.Thread.dumpThreads(Native Method) 06:29:10,515 ERROR [STDERR] java.lang.Thread.getStackTrace(Thread.java:1383) 06:29:10,515 ERROR [STDERR] java.io.FileInputStream.close(FileInputStream.java:279) 06:29:10,515 ERROR [STDERR] org.jboss.virtual.VirtualFile.closeStreams(VirtualFile.java:210) 06:29:10,515 ERROR [STDERR] org.jboss.virtual.VirtualFile.close(VirtualFile.java:227) 06:29:10,515 ERROR [STDERR] org.jboss.virtual.VirtualFile.finalize(VirtualFile.java:390) 06:29:10,515 ERROR [STDERR] java.lang.ref.Finalizer.invokeFinalizeMethod(NativeMethod) 06:29:10,515 ERROR [STDERR] java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83) 06:29:10,515 ERROR [STDERR] java.lang.ref.Finalizer.access$100(Finalizer.java:14) 06:29:10,515 ERROR [STDERR] java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160) The problem is that one can be using a stream without reference to the VirtualFile. The usage in the web deployer where this occurs is of the form: InputStream[] webXmlStreams = getInputStreams() private InputStream[] getInputStreams() { InputStream jbossWebIS = null; InputStream webIS = null; try { VirtualFile webDD = unit.getMetaDataFile("web.xml"); if (webDD != null) webIS = webDD.openStream(); } catch (IOException e) { log.debug("Failed to find web.xml"); } try { VirtualFile webDD = unit.getMetaDataFile("jboss-web.xml"); if (webDD != null) jbossWebIS = webDD.openStream(); } catch (IOException e) { log.debug("Failed to find jboss-web.xml"); } InputStream[] streams = {webIS, jbossWebIS}; return streams; } so the VirtualFiles associated with the descriptors have no references, but the streams do.