I just did a clean checkout and log4j-core fails with the following unit test failures on my machine.
RollingAppenderTimeTest.testAppender:76 No compressed files found ThrowableProxyTest.testJsonIoContainer:52 expected: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: test> but was: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: test> JSONLayoutTest.testLocationOnCompactOnMdcOn:269->testAllFeatures:116 expected: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> but was: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> JSONLayoutTest.testLocationOffCompactOffMdcOff:264->testAllFeatures:116 expected: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> but was: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> XMLLayoutTest.testLocationOnCompactOnMdcOn:271->testAllFeatures:131 expected: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> but was: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> XMLLayoutTest.testLocationOffCompactOffMdcOff:266->testAllFeatures:131 expected: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx> but was: org.apache.logging.log4j.core.impl.ThrowableProxy<java.io.IOException: testIOEx>
