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java.lang.NullPointerException: 	at java.util.TreeMap.compare(TreeMap.java:1290)	at java.util.TreeMap.put(TreeMap.java:538)	at com.sun.javatest.regtest.ModuleConfig.setPatchPath(ModuleConfig.java:165)	at com.sun.javatest.regtest.ModuleConfig$1.handleOption(ModuleConfig.java:99)	at com.sun.javatest.regtest.JDKOpts$OptionHandler.handleOption(JDKOpts.java:393)	at com.sun.javatest.regtest.JDKOpts$OptionHandler.handleOptions(JDKOpts.java:367)	at com.sun.javatest.regtest.ModuleConfig.setFromOpts(ModuleConfig.java:110)	at com.sun.javatest.regtest.ModuleConfig.setFromOpts(ModuleConfig.java:65)	at com.sun.javatest.regtest.MainAction.runOtherJVM(MainAction.java:490)	at com.sun.javatest.regtest.MainAction.run(MainAction.java:337)	at com.sun.javatest.regtest.RegressionScript.run(RegressionScript.java:231)	at com.sun.javatest.Script.run(Script.java:241)	at com.sun.javatest.DefaultTestRunner.runTest(DefaultTestRunner.java:174)	at com.sun.javatest.DefaultTestRunner.access$100(DefaultTestRunner.java:43)	at com.sun.javatest.DefaultTestRunner$1.run(DefaultTestRunner.java:66)