On 05/06/2012 03:56 PM, Thorsten Glaser wrote: > If someone has an idea how to debug this, you’re welcome. Try running ecj1 like this: gij -verbose:class -classpath /usr/share/java/eclipse-ecj.jar org.eclipse.jdt.internal.compiler.batch.GCCMain \ Hello.java -g1 -fbootclasspath=./:/usr/share/java/libgcj-<version>.jar -g1 -fsource=1.5 -ftarget=1.5 Andrew.