Bug Report
https://bz.apache.org/bugzilla/show_bug.cgi?id=49803
Source Code
http://archive.apache.org/dist/ant/source/apache-ant-1.8.1-src.zip
EvoCrash Target Frame
4
java.lang.NullPointerException:
    at java.util.Hashtable.put(Hashtable.java:459)
    at org.apache.tools.ant.PropertyHelper.setUserProperty(PropertyHelper.java:752)
    at org.apache.tools.ant.Project.setUserProperty(Project.java:566)
    at org.apache.tools.ant.Project.setDefault(Project.java:732)
public void test0() throws Throwable {
    Project project0 = new Project();
    project0.setDefault((String) null);
}

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