[jira] [Created] (LOG4J2-2050) NullPointerException in LogManager.getLogger when called from anonymous class initializer

[Mark Arnold (JIRA)]

Mark Arnold created LOG4J2-2050:
-----------------------------------

             Summary: NullPointerException in LogManager.getLogger when called 
from anonymous class initializer
                 Key: LOG4J2-2050
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2050
             Project: Log4j 2
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.9.0
            Reporter: Mark Arnold
            Priority: Critical


I observed a NullPointerException when calling LogManager.getLogger in the 
initializer block of an anonymous class, like so:


{code:java}
                SomeInterface _t = new SomeInterface() {
                        Logger log = LogManager.getLogger();
                        @Override
                        public String someMethod() {
                                log.info("Logging...");
                                return "";
                        }
                };
{code}


This did work fine in 2.8.2, but 2.9.0 gets an NPE:

{noformat}
java.lang.NullPointerException
        at 
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
        at 
org.apache.logging.log4j.spi.LoggerRegistry.getLogger(LoggerRegistry.java:125)
        at 
org.apache.logging.log4j.core.LoggerContext.getLogger(LoggerContext.java:447)
        at 
org.apache.logging.log4j.core.LoggerContext.getLogger(LoggerContext.java:420)
        at 
org.apache.logging.log4j.core.LoggerContext.getLogger(LoggerContext.java:60)
        at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:551)
        at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:537)
        at LibraryTest$1.<init>(LibraryTest.java:11)
        at 
LibraryTest.testGetLoggerFromAnonymousInnerClass_inInitializer(LibraryTest.java:10)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
        at 
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
        at 
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
        at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
        at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
        at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
        at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

{noformat}





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