Bug Report
https://issues.apache.org/bugzilla/show_bug.cgi?id=45335
Source Code
http://archive.apache.org/dist/logging/log4j/1.2.15/apache-log4j-1.2.15.zip
EvoCrash Target Frame
1
java.lang.NullPointerException:
    at org.apache.log4jb.NDC.remove(NDC.java:377)
public void test0() throws Throwable {
    NDC.ht = null;
    NDC.remove();
}

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