#1808 new
shoonmcgregor

Javassist Duplicate Field for overloaded methods

Reported by shoonmcgregor | April 30th, 2014 @ 08:12 PM

Latest pull has a javassist exception where overloaded methods are detected as duplicates

Framework version:
https://github.com/playframework/play1/commit/acef81dd246dc13164e19...

Reproduction steps:
1.) Modify a play app class (testPackage.TestClass) to have overloaded methods, e.g:

    private static void testMethod (String string) {
    }
    private static void testMethod (Integer integer) {
    }
2.) play precompile

Details:

Exception thrown:
Oops: UnexpectedException
An unexpected error occured caused by exception UnexpectedException: While applying class play.classloading.enhancers.LVEnhancer on testPackage.TestClass
play.exceptions.UnexpectedException: While applying play.CorePlugin@4232c52b on testPackage.TestClass
        at play.plugins.PluginCollection.enhance(PluginCollection.java:553)
        at play.classloading.ApplicationClasses$ApplicationClass.enhance(ApplicationClasses.java:235)
        at play.classloading.ApplicationClassloader.loadApplicationClass(ApplicationClassloader.java:165)
        at play.classloading.ApplicationClassloader.getAllClasses(ApplicationClassloader.java:429)
        at play.Play.preCompile(Play.java:603)
        at play.Play.init(Play.java:307)
        at play.server.Server.main(Server.java:160)
Caused by: play.exceptions.UnexpectedException: While applying class play.classloading.enhancers.LVEnhancer on testPackage.TestClass
        at play.CorePlugin.enhance(CorePlugin.java:306)
        at play.plugins.PluginCollection.enhance(PluginCollection.java:548)
        ... 6 more
Caused by: play.exceptions.UnexpectedException: LVEnhancer: cannot enhance the behavior 'testPackage.TestClass.testMethod(java.lang.Integer)'
        at play.classloading.enhancers.LVEnhancer.enhanceThisClass(LVEnhancer.java:112)
        at play.CorePlugin.enhance(CorePlugin.java:301)
        ... 7 more
Caused by: javassist.bytecode.DuplicateMemberException: duplicate field: $testMethod0
        at javassist.bytecode.ClassFile.testExistingField(ClassFile.java:602)
        at javassist.bytecode.ClassFile.addField(ClassFile.java:580)
        at javassist.CtClassType.addField(CtClassType.java:1265)
        at javassist.CtClass.addField(CtClass.java:1049)
        at play.classloading.enhancers.LVEnhancer.enhanceThisClass(LVEnhancer.java:41)
        ... 8 more

Comments and changes to this ticket

  • Wagner G

    Wagner G November 21st, 2017 @ 08:29 AM

    For the efficient and intelligent programming software, the number of things matters the most important is correct code. The programmers building the advance featured software which is pretty helpful to fix problem and help. With the uk Custom Essay-Writing Services help of this code, programmers must get help to fix the overloaded problem.

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<h2>Play framework</h2>

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