[Bug classpath/32844] New: EnumSet causes code to be miscompiled

[robilad at kaffe dot org]

When building javac with ecj  & gcj from SVN head, and running the jtreg test
suite with that javac on Sun's 1.6 JDK, I get a lot of failed regression tests
(~70) due to this exception:

An exception has occurred in the compiler (1.6.0_02). Please file a bug at the
Java Developer Connection (http://java.sun.com/webapps/bugreport)  after
checking the Bug Parade for duplicates. Include your program and the following
diagnostic in your report.  Thank you.
java.lang.NoSuchMethodError: java.util.EnumSet.add(Ljava/lang/Enum;)Z
        at com.sun.tools.javac.code.Lint.<init>(Lint.java:109)
        at com.sun.tools.javac.code.Lint.instance(Lint.java:58)
        at com.sun.tools.javac.util.Paths.setContext(Paths.java:96)
        at com.sun.tools.javac.util.Paths.<init>(Paths.java:90)
        at com.sun.tools.javac.util.Paths.instance(Paths.java:74)
        at
com.sun.tools.javac.util.JavacFileManager.setContext(JavacFileManager.java:161)
        at
com.sun.tools.javac.util.JavacFileManager.<init>(JavacFileManager.java:152)
        at
com.sun.tools.javac.util.JavacFileManager$1.make(JavacFileManager.java:138)
        at
com.sun.tools.javac.util.JavacFileManager$1.make(JavacFileManager.java:136)
        at com.sun.tools.javac.util.Context.get(Context.java:147)
        at com.sun.tools.javac.util.Context.get(Context.java:176)
        at com.sun.tools.javac.main.Main.compile(Main.java:366)
        at com.sun.tools.javac.main.Main.compile(Main.java:307)
        at com.sun.tools.javac.main.Main.compile(Main.java:298)
        at com.sun.tools.javac.Main.compile(Main.java:102)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
com.sun.javatest.lib.JavaCompileCommand.run(JavaCompileCommand.java:224)
        at
com.sun.javatest.regtest.CompileAction.runSameJVM(CompileAction.java:403)
        at com.sun.javatest.regtest.CompileAction.run(CompileAction.java:232)
        at
com.sun.javatest.regtest.RegressionScript.run(RegressionScript.java:85)
        at com.sun.javatest.Script.run(Script.java:211)
        at
com.sun.javatest.DefaultTestRunner.runTest(DefaultTestRunner.java:148)
        at
com.sun.javatest.DefaultTestRunner.access$100(DefaultTestRunner.java:24)
        at com.sun.javatest.DefaultTestRunner$1.run(DefaultTestRunner.java:47)
result: Failed. Compilation failed: Failed. Compilation failed


test result: Failed. Compilation failed: Failed. Compilation failed

>From looking at 
http://www.kaffe.org/%7Estuart/japi/htmlout/h-classpath-jdk6#pkg_java_util
it seems that Classpath's EnumSet has some problems:

# class java.util.EnumSet: concrete in classpath, but abstract in jdk6
# method java.util.EnumSet.add(T): no bridge method in jdk6
# method java.util.EnumSet.iterator(): concrete in classpath, but abstract in
jdk6
# method java.util.EnumSet.size(): concrete in classpath, but abstract in jdk6

Is there a specific reason why we differ from JDK here?

Eclipse Java Compiler 0.771, 3.3.0
gij (GNU libgcj) version 4.3.0 20070718 (experimental)


-- 
           Summary: EnumSet causes code to be miscompiled
           Product: classpath
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: classpath
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: robilad at kaffe dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32844