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https://issues.apache.org/jira/browse/FELIX-1035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard S. Hall updated FELIX-1035:
-----------------------------------
Component/s: (was: File Install)
Framework
Affects Version/s: (was: configadmin-1.0.10)
felix-1.6.0
Fix Version/s: felix-1.6.1
> deadlock observed while using fileinstall to monitor multiple directories
> -------------------------------------------------------------------------
>
> Key: FELIX-1035
> URL: https://issues.apache.org/jira/browse/FELIX-1035
> Project: Felix
> Issue Type: Bug
> Components: Framework
> Affects Versions: felix-1.6.0
> Environment: Solaris 10/x86
> java version "1.6.0_07"
> Java(TM) SE Runtime Environment (build 1.6.0_07-b06)
> Java HotSpot(TM) Client VM (build 10.0-b23, mixed mode, sharing)
> fileinstall version #0.9.2
> felix version #1.6.0
> Reporter: Sahoo
> Assignee: Karl Pauls
> Fix For: felix-1.6.1
>
>
> I am using fileinstall to monitor two directories. fileinstall is configured
> using config.properties file to monitor a dir called modules. Then I have a
> cfg file in modules dir that configures fileinstall to monitor a second dir
> called autodeploy-modules. During subsequent start of the framework, I see
> deadlock like this:
> Found one Java-level deadlock:
> =============================
> "{felix.fileinstall.poll=5000, felix.fileinstall.bundles.new.start=false,
> felix.fileinstall.dir=/space/ss141213/WS/gf/v3.trunk.new/publish/glassfish/modules/,
> felix.fileinstall.debug=1}":
> waiting to lock monitor 0x0851dac8 (object 0xa0518300, a
> java.net.URLClassLoader),
> which is held by "Configuration Updater"
> "Configuration Updater":
> waiting to lock monitor 0x085202a0 (object 0xa050bd68, a
> sun.misc.Launcher$ExtClassLoader),
> which is held by "{felix.fileinstall.poll=5000,
> felix.fileinstall.bundles.new.start=false,
> felix.fileinstall.dir=/space/ss141213/WS/gf/v3.trunk.new/publish/glassfish/modules/,
> felix.fileinstall.debug=1}"
> Java stack information for the threads listed above:
> ===================================================
> "{felix.fileinstall.poll=5000, felix.fileinstall.bundles.new.start=false,
> felix.fileinstall.dir=/space/ss141213/WS/gf/v3.trunk.new/publish/glassfish/modules/,
> felix.fileinstall.debug=1}":
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:169)
> at
> org.apache.felix.framework.URLHandlersStreamHandlerProxy.class$(URLHandlersStreamHandlerProxy.java:75)
> at
> org.apache.felix.framework.URLHandlersStreamHandlerProxy.getStreamHandlerService(URLHandlersStreamHandlerProxy.java:438)
> at
> org.apache.felix.framework.URLHandlersStreamHandlerProxy.parseURL(URLHandlersStreamHandlerProxy.java:297)
> at java.net.URL.<init>(URL.java:596)
> at java.net.URL.<init>(URL.java:464)
> at java.net.URL.<init>(URL.java:413)
> at java.net.JarURLConnection.parseSpecs(JarURLConnection.java:161)
> at java.net.JarURLConnection.<init>(JarURLConnection.java:144)
> at
> sun.net.www.protocol.jar.JarURLConnection.<init>(JarURLConnection.java:63)
> at sun.net.www.protocol.jar.Handler.openConnection(Handler.java:24)
> at java.net.URL.openConnection(URL.java:945)
> at java.net.URL.openStream(URL.java:1009)
> at
> java.lang.ClassLoader.getSystemResourceAsStream(ClassLoader.java:1183)
> at java.lang.Class.getResourceAsStream(Class.java:2028)
> at sun.text.normalizer.ICUData.getStream(ICUData.java:43)
> at sun.text.normalizer.ICUData.getRequiredStream(ICUData.java:63)
> at sun.text.normalizer.NormalizerImpl.<init>(NormalizerImpl.java:243)
> at sun.text.normalizer.NormalizerImpl.<clinit>(NormalizerImpl.java:40)
> at
> sun.text.normalizer.NormalizerBase.decompose(NormalizerBase.java:707)
> at
> sun.text.normalizer.NormalizerBase$NFKDMode.normalize(NormalizerBase.java:348)
> at
> sun.text.normalizer.NormalizerBase.normalize(NormalizerBase.java:1592)
> at
> sun.text.normalizer.NormalizerBase.normalize(NormalizerBase.java:1573)
> at java.text.Normalizer.normalize(Normalizer.java:146)
> at sun.security.x509.AVA.toRFC2253CanonicalString(AVA.java:986)
> at sun.security.x509.RDN.toRFC2253StringInternal(RDN.java:430)
> at sun.security.x509.RDN.toRFC2253String(RDN.java:409)
> at
> sun.security.x509.X500Name.getRFC2253CanonicalName(X500Name.java:714)
> at sun.security.x509.X500Name.equals(X500Name.java:400)
> at sun.security.pkcs.PKCS7.getCertificate(PKCS7.java:609)
> at sun.security.pkcs.SignerInfo.getCertificate(SignerInfo.java:202)
> at sun.security.pkcs.SignerInfo.verify(SignerInfo.java:328)
> at sun.security.pkcs.PKCS7.verify(PKCS7.java:494)
> at sun.security.pkcs.PKCS7.verify(PKCS7.java:511)
> at
> sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:199)
> at
> sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:176)
> at java.util.jar.JarVerifier.processEntry(JarVerifier.java:277)
> at java.util.jar.JarVerifier.update(JarVerifier.java:188)
> at java.util.jar.JarFile.initializeVerifier(JarFile.java:321)
> at java.util.jar.JarFile.getInputStream(JarFile.java:386)
> - locked <0xa00f2c60> (a java.util.jar.JarFile)
> at
> sun.misc.URLClassPath$JarLoader$2.getInputStream(URLClassPath.java:689)
> at sun.misc.Resource.cachedInputStream(Resource.java:59)
> - locked <0xa00f3530> (a sun.misc.URLClassPath$JarLoader$2)
> at sun.misc.Resource.getByteBuffer(Resource.java:154)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:249)
> at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> - locked <0xa050bd68> (a sun.misc.Launcher$ExtClassLoader)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> - locked <0xa05078d8> (a sun.misc.Launcher$AppClassLoader)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
> - locked <0xa05078d8> (a sun.misc.Launcher$AppClassLoader)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at sun.security.jca.ProviderConfig$3.run(ProviderConfig.java:234)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> sun.security.jca.ProviderConfig.doLoadProvider(ProviderConfig.java:225)
> at
> sun.security.jca.ProviderConfig.getProvider(ProviderConfig.java:205)
> - locked <0xa05078d8> (a sun.misc.Launcher$AppClassLoader)
> at sun.security.jca.ProviderList.getProvider(ProviderList.java:215)
> at sun.security.jca.ProviderList$3.get(ProviderList.java:130)
> at sun.security.jca.ProviderList$3.get(ProviderList.java:125)
> at java.util.AbstractList$Itr.next(AbstractList.java:345)
> at java.security.SecureRandom.getPrngAlgorithm(SecureRandom.java:522)
> at java.security.SecureRandom.getDefaultPRNG(SecureRandom.java:165)
> at java.security.SecureRandom.<init>(SecureRandom.java:133)
> at
> org.apache.felix.cm.impl.ConfigurationManager.createPid(ConfigurationManager.java:787)
> at
> org.apache.felix.cm.impl.ConfigurationManager.createFactoryConfiguration(ConfigurationManager.java:357)
> at
> org.apache.felix.cm.impl.ConfigurationAdminImpl.createFactoryConfiguration(ConfigurationAdminImpl.java:85)
> at
> org.apache.felix.fileinstall.DirectoryWatcher.getConfiguration(DirectoryWatcher.java:294)
> at
> org.apache.felix.fileinstall.DirectoryWatcher.setConfig(DirectoryWatcher.java:232)
> at
> org.apache.felix.fileinstall.DirectoryWatcher.doConfigs(DirectoryWatcher.java:162)
> at
> org.apache.felix.fileinstall.DirectoryWatcher.run(DirectoryWatcher.java:121)
> "Configuration Updater":
> at java.lang.ClassLoader.loadClass(ClassLoader.java:295)
> - waiting to lock <0xa050bd68> (a sun.misc.Launcher$ExtClassLoader)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> - locked <0xa0518300> (a java.net.URLClassLoader)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at
> org.apache.felix.framework.searchpolicy.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:480)
> at
> org.apache.felix.framework.searchpolicy.ModuleImpl.access$100(ModuleImpl.java:59)
> at
> org.apache.felix.framework.searchpolicy.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1434)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> - locked <0xa0a5ef58> (a
> org.apache.felix.framework.searchpolicy.ModuleImpl$ModuleClassLoader)
> at
> org.apache.felix.cm.impl.ConfigurationManager.getPersistenceManagers(ConfigurationManager.java:568)
> at
> org.apache.felix.cm.impl.ConfigurationManager.getFactory(ConfigurationManager.java:677)
> at
> org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceFactoryUpdate.run(ConfigurationManager.java:1014)
> at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:88)
> Found 1 deadlock.
> I tried to reproduce the issue using a simple program, but I could not. But,
> I am able to reproduce the issue in my environment, where I use GlassFish
> application server which runs on Felix and uses fileinstall.
> I understand this deadlock has to do with "deadlock observed in Sun JVM
> during parallel classloading," given that the threads involved are Felix
> threads, can we put any workaround in exercised code path to avoid this
> deadlock?
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