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From bin01 <imvivacio...@gmail.com>
Subject ant build target:jflex throws Stackoverflow error
Date Thu, 14 Jun 2012 00:59:07 GMT
Hello,

I have checked out lucene 3.6 and I am trying to run the ant jflex. It is
throwing a Stackoverflow error when it is trying to execute the target:
jflex-UAX29URLEmailTokenizer. Any idea why this is happening? I have checked
out the trunk version of Jflex 1.5 with revision greater than 597 as
suggested in javadoc. Following is the exception stacktrace:

d:\CW\lucene-3.6\core\build.xml:96: java.lang.StackOverflowError
        at jflex.RegExp.isCharClass(RegExp.java:85)
        at jflex.RegExp.isCharClass(RegExp.java:85)
        at jflex.RegExp.isCharClass(RegExp.java:85)
        at jflex.NFA.insertNFA(NFA.java:966)
        at jflex.NFA.insertNFA(NFA.java:966)
        at jflex.NFA.insertNFA(NFA.java:1037)
        at jflex.NFA.addRegExp(NFA.java:128)
        at
jflex.CUP$LexParse$actions.CUP$LexParse$do_action(LexParse.java:2178)
        at jflex.LexParse.do_action(LexParse.java:547)
        at java_cup.runtime.lr_parser.parse(lr_parser.java:584)
        at jflex.Main.generate(Main.java:63)
        at jflex.anttask.JFlexTask.execute(JFlexTask.java:60)
        at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.jav
a:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:390)
        at org.apache.tools.ant.Target.performTasks(Target.java:411)
        at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
        at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExe
cutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
        at org.apache.tools.ant.Main.runBuild(Main.java:809)
        at org.apache.tools.ant.Main.startAnt(Main.java:217)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Many Thanks!

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