I am asking this question on stackoverflow as this is the suggested guava question forum indicated on the guava website (http://code.google.com/p/guava-libraries/).
I want to try out some of the unreleased new features of google guava (like the cool MoreExecutors.listeningDecorator feature). As I haven’t found a google guava nightly build, I decided to try to create the jar myself. Unfortunately I am seeing the following exception from javac (on Mac OS 10.6.8) when I try to build:
[javac] An exception has occurred in the compiler (1.6.0_24). 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.
[javac] java.lang.NullPointerException
[javac] at com.sun.tools.javac.comp.Check.checkCompatibleConcretes(Check.java:1215)
[javac] at com.sun.tools.javac.comp.Check.checkCompatibleSupertypes(Check.java:1567)
[javac] at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2674)
[javac] at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2628)
[javac] at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2564)
[javac] at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1036)
[javac] at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:765)
[javac] at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:730)
.
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I see that I am not alone in this error:
I understand this looks like a Java compiler bug, but is there perhaps a workaround to get guava to compile? Or if not, is there a recent guava nightly build somewhere which I could use instead?
I can’t see any error on the page you’ve linked to (it shows a successful build). Maybe this has been fixed? Or did you possible attach the wrong URL?
I’d try OpenJDK.
If this is a bug in the
com.sum.*libraries then you may find that OpenJDK does not suffer with the same problem.