------- Comment #5 from jakub at gcc dot gnu dot org 2007-10-31 23:42 ------- Well, package-info.java files containing just package something; line and comments are quite common, and for them ecj1 creates an empty jar file. If the whole package is compiled at once, then there will be a bigger jar file and so this ICE or error won't trigger, but just letting gcj compile each *.java file into *.o individually in a makefile (using ecj1 internally) wouldn't work in such cases.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33765