https://bz.apache.org/bugzilla/show_bug.cgi?id=58368
Bug ID: 58368
Summary: Data race on field
org.apache.catalina.core.ApplicationFilterFactory.fact
ory
Product: Tomcat 8
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
Reported by RV-Predict (a dynamic race detector) when running the test suite:
Data race on field org.apache.catalina.core.ApplicationFilterFactory.factory:
{{{
Concurrent read in thread T27 (locks held: {Monitor@3bb9edae})
----> at
org.apache.catalina.core.ApplicationFilterFactory.getInstance(ApplicationFilterFactory.java:54)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:182)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:277)
- locked Monitor@3bb9edae at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:259)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
T27 is created by T15
at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:1010)
Concurrent write in thread T28 (locks held: {Monitor@6d627e28})
----> at
org.apache.catalina.core.ApplicationFilterFactory.getInstance(ApplicationFilterFactory.java:55)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:182)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:277)
- locked Monitor@6d627e28 at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:259)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
T28 is created by T15
at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:1010)
}}}
Another non-thread-safe implementation of lazy initialization.
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