Javac internal error compiling lambdas

[Maurizio Cimadamore]

I've fixed this in lambda repository. A promoted build containing the 
fix will be available sometime next week.

Thanks
Maurizio

On 01/04/13 19:00, Martin Buchholz wrote:
> Hi lambdafolk,
>
> This is a bug report.  Using very recent lambda javac:
>
> $ (cat Lambda.java && echo --- && javac Lambda.java)
> public class Lambda {
>     public static void main(String[] args) throws Throwable {
>         Runnable[] rs = {
>             () -> { String x = null; },
>             () -> { String x = null; },
>         };
>     }
> }
> ---
> An exception has occurred in the compiler (1.8.0-internal). 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.comp.Flow$AliveAnalyzer.visitVarDef(Flow.java:491)
> at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:828)
> at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.scanStat(Flow.java:409)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.scanStats(Flow.java:417)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.visitBlock(Flow.java:501)
> at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:884)
> at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.scanStat(Flow.java:409)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.visitLambda(Flow.java:694)
> at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1590)
> at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
> at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
> at 
> com.sun.tools.javac.tree.TreeScanner.visitNewArray(TreeScanner.java:216)
> at com.sun.tools.javac.tree.JCTree$JCNewArray.accept(JCTree.java:1537)
> at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
> at com.sun.tools.javac.comp.Flow$AliveAnalyzer.analyzeTree(Flow.java:722)
> at com.sun.tools.javac.comp.Flow.analyzeLambda(Flow.java:227)
> at com.sun.tools.javac.comp.Attr.visitLambda(Attr.java:2381)
> at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1590)
> at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:603)
> at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:621)
> at com.sun.tools.javac.comp.Attr.attribExprs(Attr.java:656)
> at com.sun.tools.javac.comp.Attr.visitNewArray(Attr.java:2238)
> at com.sun.tools.javac.tree.JCTree$JCNewArray.accept(JCTree.java:1537)
> at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:603)
> at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:621)
> at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1083)
> at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:828)
> at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:603)
> at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:648)
> at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:664)
> at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1121)
> at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:884)
> at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:603)
> at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:648)
> at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1023)
> at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:771)
> at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:603)
> at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:648)
> at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4169)
> at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4077)
> at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4011)
> at com.sun.tools.javac.comp.Attr.attrib(Attr.java:3985)
> at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1256)
> at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:909)
> at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:868)
> at com.sun.tools.javac.main.Main.compile(Main.java:516)
> at com.sun.tools.javac.main.Main.compile(Main.java:376)
> at com.sun.tools.javac.main.Main.compile(Main.java:365)
> at com.sun.tools.javac.main.Main.compile(Main.java:356)
> at com.sun.tools.javac.Main.compile(Main.java:77)
> at com.sun.tools.javac.Main.main(Main.java:62)