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https://issues.jboss.org/browse/WFLY-4198?page=com.atlassian.jira.plugin....
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Sergiy Barlabanov commented on WFLY-4198:
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Yes, we are setting some variables into MDC in the thread, when our code is executed. But
the exception above comes from the Wildfly code executed in the thread pool used for async
EJB execution before our code is called. And LogDiagnosticContextRecoveryInterceptor is
called before any application code is executed so there is no chance to put anything into
MDC before LogDiagnosticContextRecoveryInterceptor is called.
NullPointerException in LogDiagnosticContextRecoveryInterceptor when
calling an asynchronous EJB
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Key: WFLY-4198
URL:
https://issues.jboss.org/browse/WFLY-4198
Project: WildFly
Issue Type: Bug
Components: EJB
Affects Versions: 8.2.0.Final
Reporter: Sergiy Barlabanov
Assignee: David Lloyd
When trying to call an asynchronous EJB in a Web application using slf4j (1.7.5+) &
logback(1.0.13+) for logging the following NullPointerException occurs (see below).
The problem is in the line 67 of LogDiagnosticContextRecoveryInterceptor class, when it
tries to access MDC map, which is null. According to SLF4J API the copy of MDC map may be
null: see the javadoc of org.slf4j.MDC#getCopyOfContextMap.
So LogDiagnosticContextRecoveryInterceptor or org.jboss.logging.Slf4jLoggerProvider have
to check the map for null.
Currently there is no workaround for that :(.
Caused by: java.lang.NullPointerException
at
org.jboss.as.ejb3.component.interceptors.LogDiagnosticContextRecoveryInterceptor.processInvocation(LogDiagnosticContextRecoveryInterceptor.java:67)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at
org.jboss.as.ejb3.component.interceptors.AsyncFutureInterceptorFactory$1$2.runInvocation(AsyncFutureInterceptorFactory.java:97)
at
org.jboss.as.ejb3.component.interceptors.AsyncInvocationTask.run(AsyncInvocationTask.java:73)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
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