Intermittent errors while building OpenJDK/Penrose

[David Bosschaert]

Hi,

I'm regularly getting build problems like this one. Restarting the
build after this generally works, but its very odd. The error below is
just one example, I've seen different ones popping up here and there.
Anyone else seeing this too, or is it only me?

Thanks,

David

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.AbstractMethodError
	at com.sun.tools.javac.code.Type$MethodType.accept(Type.java:880)
	at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:3705)
	at com.sun.tools.javac.code.Types.isSameType(Types.java:610)
	at com.sun.tools.javac.comp.Check.checkConflicts(Check.java:2284)
	at com.sun.tools.javac.comp.Lower$1.visitMethodDef(Lower.java:648)
	at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:736)
	at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:50)
	at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:58)
	at com.sun.tools.javac.tree.TreeScanner.visitClassDef(TreeScanner.java:142)
	at com.sun.tools.javac.comp.Lower$1.visitClassDef(Lower.java:665)
	at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:658)
	at com.sun.tools.javac.comp.Lower.checkConflicts(Lower.java:638)
	at com.sun.tools.javac.comp.Lower.translateTopLevelClass(Lower.java:3713)
	at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1429)
	at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1307)
	at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:904)
	at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:863)
	at com.sun.tools.javac.main.Main.compile(Main.java:472)
	at com.sun.tools.javac.main.Main.compile(Main.java:389)
	at com.sun.tools.javac.main.Main.compile(Main.java:378)
	at com.sun.tools.javac.main.Main.compile(Main.java:369)
	at com.sun.tools.javac.Main.compile(Main.java:76)
	at com.sun.tools.javac.Main.main(Main.java:61)