Java 8 Lambda bug report

[Luke De Gruchy]

Hi,

I've been testing Java 8 lambda build 74 and I'm not sure what the 
correct way is to file a bug report. Let me know if I should file this 
bug on Oracle's site instead, of if there's another proper way of doing 
this.

I'm installed the Java 8 lambda build from 
lambda-8-b74-linux-x64-21_jan_2013.tar.gz on RHEL 6.
I was able to replicate the same bug with an OS X Mountain Lion (all 
latest updates applied) machine with a less current lambda build.

Here is my program.  I'm not sure if this syntax is meant to be legal, 
but I'm getting a NullPointerException on com.sun.tools.javac.jvm.Code, 
which is clearly a bug.

*public interface WithSubFunctions {**
**    default void doStuff() {**
**        System.out.println("Doing Stuff!");**
**        RUNNABLE.run();**
**    }**
**
**    static final Runnable RUNNABLE = () -> ( 
System.out.println("RUNNABLE!") );**
**}*

If I change RUNNABLE to an anonymous inner class, it compiles cleanly.

Here's the output when I try to compile with that build's javac:

*$ ~/Development/java/jdks/jdk1.8.0/bin/javac WithSubFunctions.java **
**An exception has occurred in the compiler (1.8.0-ea). 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.NullPointerException**
**    at com.sun.tools.javac.jvm.Code.emitop0(Code.java:538)**
**    at com.sun.tools.javac.jvm.Items$SelfItem.load(Items.java:367)**
**    at com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:912)**
**    at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1746)**
**    at 
com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1412)**
**    at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:893)**
**    at com.sun.tools.javac.jvm.Gen.visitAssign(Gen.java:1844)**
**    at com.sun.tools.javac.tree.JCTree$JCAssign.accept(JCTree.java:1619)**
**    at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:893)**
**    at com.sun.tools.javac.jvm.Gen.visitExec(Gen.java:1694)**
**    at 
com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1242)**
**    at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)**
**    at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:718)**
**    at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:704)**
**    at com.sun.tools.javac.jvm.Gen.genStats(Gen.java:755)**
**    at com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1090)**
**    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:854)**
**    at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)**
**    at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:718)**
**    at com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:968)**
**    at com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:941)**
**    at 
com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:738)**
**    at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)**
**    at com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2310)**
**    at 
com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:752)**
**    at 
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1547)**
**    at 
com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1511)**
**    at 
com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:908)**
**    at 
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:867)**
**    at com.sun.tools.javac.main.Main.compile(Main.java:506)**
**    at com.sun.tools.javac.main.Main.compile(Main.java:365)**
**    at com.sun.tools.javac.main.Main.compile(Main.java:354)**
**    at com.sun.tools.javac.main.Main.compile(Main.java:345)**
**    at com.sun.tools.javac.Main.compile(Main.java:76)**
**    at com.sun.tools.javac.Main.main(Main.java:61)**
**
*

-- 
Luke de Gruchy
Senior Software Developer
Intelerad Medical Systems Incorporated
895 de la Gauchetiere W, Suite 400
Montreal, Quebec, Canada H3B 4G1
luke.degruchy at intelerad.com
www.intelerad.com


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