Bugs item #662098, was opened at 2003-01-04 04:00
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=376685&aid=662098&group_id=22866
>Category: JBossMX
Group: v3.2
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Dorothy Gantenbein (dgantenbein)
>Assigned to: Scott M Stark (starksm)
Summary: class loader deadlock new for 3.2Beta3
Initial Comment:
Class loader deadlock occurs on Windows XP,
Windows 2000 and Linus. Using JDK 1.4.1_01 and
JBoss 3.2 Beta3. This was not a problem using JBoss
3.2 Beta1.
For us, this deadlock occurs using Cactus' ant task to
do automated nightly testing (runservertasks). This ant
task starts JBoss, and JBoss freezes during startup at
various points.
At the bottom of this information is the information about
the deadlock from OptimizeIt's thread debugger. The
stacktraces to the two threads involved in the deadlock
are included (tcpConnection-8080-1 and main). For
tcpConnection-8080-1 thread, the resin classes appear
in the stacktrace. I have confirmed that the resin
classes shown in the stacktrace are NOT holding any
monitor on a class.
------------------------------------------------------------
Thread tcpConnection-8080-1 enters monitor
java.lang.Class 0xaf35760 first and then
org.jboss.mx.loading.UnifiedClassLoader3 0xb124f80
while thread main enters in opposite order.
Thread [tcpConnection-8080-1] (Suspended)
java.lang.Object.wait(long) line: not available
[native method]
org.jboss.mx.loading.ClassLoadingTask
(java.lang.Object).wait() line: 426
org.jboss.mx.loading.UnifiedClassLoader3.loa
dClass(java.lang.String, boolean) line: 175
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClass(java.lang.String) line:
262
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClassInternal
(java.lang.String) line: 322
java.lang.ClassLoader.defineClass0
(java.lang.String, byte[], int, int,
java.security.ProtectionDomain) line: not available
[native method]
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).defineClass(java.lang.String,
byte[], int, int, java.security.ProtectionDomain) line: 509
org.jboss.mx.loading.UnifiedClassLoader3
(java.security.SecureClassLoader).defineClass
(java.lang.String, byte[], int, int,
java.security.CodeSource) line: 123
org.jboss.mx.loading.UnifiedClassLoader3
(java.net.URLClassLoader).defineClass(java.lang.String,
sun.misc.Resource) line: 246
java.net.URLClassLoader.access$100
(java.net.URLClassLoader, java.lang.String,
sun.misc.Resource) line: 54
java.net.URLClassLoader$1.run() line: 193
java.security.AccessController.doPrivileged
(java.security.PrivilegedExceptionAction,
java.security.AccessControlContext) line: not available
[native method]
org.jboss.mx.loading.UnifiedClassLoader3
(java.net.URLClassLoader).findClass(java.lang.String)
line: 186
org.jboss.mx.loading.UnifiedClassLoader3
(org.jboss.mx.loading.UnifiedClassLoader).findClass
(java.lang.String) line: 444
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClass(java.lang.String,
boolean) line: 306
org.jboss.mx.loading.UnifiedClassLoader3
(org.jboss.mx.loading.UnifiedClassLoader).loadClassLoc
ally(java.lang.String, boolean) line: 250
org.jboss.mx.loading.UnifiedLoaderRepository
3.loadClassFromClassLoader(java.lang.String, boolean,
org.jboss.mx.loading.UnifiedClassLoader) line: 187
org.jboss.mx.loading.LoadMgr.beginLoadTas
k(org.jboss.mx.loading.ClassLoadingTask,
org.jboss.mx.loading.UnifiedLoaderRepository3) line: 119
org.jboss.mx.loading.UnifiedClassLoader3.loa
dClass(java.lang.String, boolean) line: 161
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClass(java.lang.String) line:
262
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClassInternal
(java.lang.String) line: 322
com.caucho.jsp.JspParser.parse
(com.caucho.vfs.ReadStream, java.lang.String,
java.lang.String, java.lang.String, com.caucho.vfs.Path,
com.caucho.server.http.CauchoRequest,
com.caucho.server.http.CauchoApplication) line: 282
com.caucho.jsp.JspParser.parse
(com.caucho.vfs.ReadStream, com.caucho.vfs.Path,
java.lang.String, java.lang.String, java.lang.String,
com.caucho.server.http.CauchoRequest,
com.caucho.server.http.CauchoApplication,
com.caucho.java.LineMap, boolean, java.util.ArrayList)
line: 258
com.caucho.jsp.XtpPage.getJspPage
(com.caucho.xml.CauchoDocument,
javax.xml.transform.Templates,
com.caucho.server.http.CauchoRequest,
com.caucho.server.http.CauchoResponse,
java.lang.String) line: 602
com.caucho.jsp.XtpPage.compileJspPage
(com.caucho.server.http.CauchoRequest,
com.caucho.server.http.CauchoResponse,
com.caucho.xml.CauchoDocument,
javax.xml.transform.Templates, java.lang.String) line:
388
com.caucho.jsp.XtpPage.service
(javax.servlet.ServletRequest,
javax.servlet.ServletResponse) line: 234
com.caucho.jsp.XtpPage
(com.caucho.jsp.Page).subservice
(com.caucho.server.http.CauchoRequest,
com.caucho.server.http.CauchoResponse) line: 497
com.caucho.server.http.FilterChainPage.doFil
ter(javax.servlet.ServletRequest,
javax.servlet.ServletResponse) line: 182
com.caucho.server.http.CacheInvocation
(com.caucho.server.http.Invocation).service
(com.caucho.server.http.AbstractRequest,
com.caucho.server.http.CauchoResponse) line: 312
com.caucho.server.http.CacheInvocation.servi
ce(com.caucho.server.http.AbstractRequest,
com.caucho.server.http.CauchoResponse) line: 135
com.caucho.server.http.HttpRequest.handleR
equest() line: 244
com.caucho.server.http.HttpRequest.handleC
onnection(com.caucho.server.Connection) line: 163
com.caucho.server.TcpConnection.run() line:
137
java.lang.Thread.run() line: 536
Thread [main] (Suspended)
org.jboss.mx.loading.LoadMgr.beginLoadTas
k(org.jboss.mx.loading.ClassLoadingTask,
org.jboss.mx.loading.UnifiedLoaderRepository3) line: 106
org.jboss.mx.loading.UnifiedClassLoader3.loa
dClass(java.lang.String, boolean) line: 161
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClass(java.lang.String) line:
262
org.jboss.mx.loading.UnifiedClassLoader3
(java.lang.ClassLoader).loadClassInternal
(java.lang.String) line: 322
org.jboss.invocation.jrmp.server.JRMPInvoker.
startService() line: 274
org.jboss.invocation.jrmp.server.JRMPInvoker
$1.startService() line: 102
org.jboss.invocation.jrmp.server.JRMPInvoker
$1(org.jboss.system.ServiceMBeanSupport).start() line:
197
org.jboss.invocation.jrmp.server.JRMPInvoker.
start() line: 535
sun.reflect.NativeMethodAccessorImpl.invoke
0(java.lang.reflect.Method, java.lang.Object,
java.lang.Object[]) line: not available [native method]
sun.reflect.NativeMethodAccessorImpl.invoke
(java.lang.Object, java.lang.Object[]) line: 39
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.system.ServiceController$ServicePr
oxy.invoke(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 954
$Proxy10.start() line: not available
org.jboss.system.ServiceController.start
(javax.management.ObjectName) line: 388
org.jboss.system.ServiceController.start
(javax.management.ObjectName) line: 404
org.jboss.system.ServiceController.start
(javax.management.ObjectName) line: 404
sun.reflect.GeneratedMethodAccessor6.invok
e(java.lang.Object, java.lang.Object[]) line: not available
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.util.jmx.MBeanProxy.invoke
(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 174
$Proxy5.start
(javax.management.ObjectName) line: not available
org.jboss.deployment.SARDeployer.start
(org.jboss.deployment.DeploymentInfo) line: 310
org.jboss.deployment.MainDeployer.start
(org.jboss.deployment.DeploymentInfo) line: 824
org.jboss.deployment.MainDeployer.deploy
(org.jboss.deployment.DeploymentInfo) line: 636
org.jboss.deployment.MainDeployer.deploy
(java.net.URL) line: 600
sun.reflect.GeneratedMethodAccessor21.invo
ke(java.lang.Object, java.lang.Object[]) line: not available
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.util.jmx.MBeanProxy.invoke
(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 174
$Proxy7.deploy(java.net.URL) line: not
available
org.jboss.deployment.scanner.URLDeployme
ntScanner.deploy
(org.jboss.deployment.scanner.URLDeploymentScanner
$DeployedURL) line: 400
org.jboss.deployment.scanner.URLDeployme
ntScanner.scanDirectory(java.net.URL) line: 619
org.jboss.deployment.scanner.URLDeployme
ntScanner.scan() line: 472
org.jboss.deployment.scanner.AbstractDeplo
ymentScanner$ScannerThread.doScan() line: 195
org.jboss.deployment.scanner.URLDeployme
ntScanner
(org.jboss.deployment.scanner.AbstractDeploymentSca
nner).startService() line: 268
org.jboss.deployment.scanner.URLDeployme
ntScanner
(org.jboss.system.ServiceMBeanSupport).start() line:
197
sun.reflect.GeneratedMethodAccessor7.invok
e(java.lang.Object, java.lang.Object[]) line: not available
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.system.ServiceController$ServicePr
oxy.invoke(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 954
$Proxy0.start() line: not available
org.jboss.system.ServiceController.start
(javax.management.ObjectName) line: 388
sun.reflect.GeneratedMethodAccessor6.invok
e(java.lang.Object, java.lang.Object[]) line: not available
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.util.jmx.MBeanProxy.invoke
(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 174
$Proxy5.start
(javax.management.ObjectName) line: not available
org.jboss.deployment.SARDeployer.start
(org.jboss.deployment.DeploymentInfo) line: 310
org.jboss.deployment.MainDeployer.start
(org.jboss.deployment.DeploymentInfo) line: 824
org.jboss.deployment.MainDeployer.deploy
(org.jboss.deployment.DeploymentInfo) line: 636
org.jboss.deployment.MainDeployer.deploy
(java.net.URL) line: 600
org.jboss.deployment.MainDeployer.deploy
(java.lang.String) line: 584
sun.reflect.NativeMethodAccessorImpl.invoke
0(java.lang.reflect.Method, java.lang.Object,
java.lang.Object[]) line: not available [native method]
sun.reflect.NativeMethodAccessorImpl.invoke
(java.lang.Object, java.lang.Object[]) line: 39
sun.reflect.DelegatingMethodAccessorImpl.in
voke(java.lang.Object, java.lang.Object[]) line: 25
java.lang.reflect.Method.invoke
(java.lang.Object, java.lang.Object[]) line: 324
org.jboss.mx.capability.ReflectedMBeanDisp
atcher.invoke(java.lang.String, java.lang.Object[],
java.lang.String[]) line: 284
org.jboss.mx.server.MBeanServerImpl.invoke
(javax.management.ObjectName, java.lang.String,
java.lang.Object[], java.lang.String[]) line: 549
org.jboss.util.jmx.MBeanProxy.invoke
(java.lang.Object, java.lang.reflect.Method,
java.lang.Object[]) line: 174
$Proxy6.deploy(java.lang.String) line: not
available
org.jboss.system.server.ServerImpl.doStart()
line: 325
org.jboss.system.server.ServerImpl.start()
line: 232
org.jboss.Main.boot(java.lang.String[]) line:
155
org.jboss.Main$1.run() line: 393
java.lang.Thread.run() line: 536
----------------------------------------------------------------------
>Comment By: Scott M Stark (starksm)
Date: 2003-01-04 20:53
Message:
Logged In: YES
user_id=175228
This has been fixed in the current 3.2 branch.
----------------------------------------------------------------------
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