I compiled "gcc version 4.2.0 20070505 (prerelease)" and decided to try some of the Mauve tests ( http://sources.redhat.com/mauve/ ) as suggested on http://gcc.gnu.org/install/test.html .
I did read http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16662 but when I tried to re-open the bug it was not allowed. I tried to download the testcase attachment on that page but it seems that the file is missing. Here is the problem: wonka# ./vte logMessage is called /root/downloads/gcc-4_2-branch/libjava/classpath/native/jni/gtk-peer/gthread-jni.c:1242: AWT JNI failure (BROKEN): cannot exit monitor Description follows to System.err: java.lang.IllegalMonitorStateException: current thread not owner <<No stacktrace available>> /root/downloads/gcc-4_2-branch/libjava/classpath/native/jni/gtk-peer/gthread-jni.c:1242: Aborting execution; BROKEN: cannot exit monitor Aborting execution Aborted I have tried other programs and _did_ get a stacktrace, I don't know why this program says it is not available. I did some googling which led me to bug 16662 - there are not many hits for the error message given. $xgcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /root/downloads/gcc-4_2-branch/configure --verbose --enable-languages=c,ada,c++,fortran,java,objc,obj-c++ --with-tune=athlon-xp --prefix=/usr --enable-objc-gc --enable-concept-checks --disable-multilib --with-gxx-include-dir=/usr/include/c++/4.2 --enable-libstdcxx-debug --enable-static --enable-shared --enable-initfini-array --enable-__cxa_atexit --enable-threads=posix --enable-version-specific-runtime-libs --enable-libssp --enable-libmudflap --enable-libgomp --disable-werror --enable-nls --with-included-gettext --enable-decimal-float --with-long-double-128 --enable-debug --enable-java-gc=boehm --with-x --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --enable-java-awt=gtk,xlib --enable-gtk-cairo --enable-qt-peer --enable-xmlj --enable-gconf-peer --enable-tool-wrappers --with-gjdoc --enable-portable-native-sync --enable-libgcj-multifile --with-stabs --enable-hash-synchronization --enable-gc-debug --enable-interpreter --with-system-zlib --enable-libada --with-tls --with-cpu=athlon-xp --with-arch=athlon-xp --enable-checking : (reconfigured) /root/downloads/gcc-4_2-branch/configure --verbose --enable-languages=c,ada,c++,fortran,java,objc,obj-c++ --with-tune=athlon-xp --prefix=/usr --enable-objc-gc --enable-concept-checks --disable-multilib --with-gxx-include-dir=/usr/include/c++/4.2 --enable-libstdcxx-debug --enable-static --enable-shared --enable-initfini-array --enable-__cxa_atexit --enable-threads=posix --enable-version-specific-runtime-libs --enable-libssp --enable-libmudflap --enable-libgomp --disable-werror --enable-nls --with-included-gettext --enable-decimal-float --with-long-double-128 --enable-debug --enable-java-gc=boehm --with-x --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --enable-java-awt=gtk,xlib --enable-gtk-cairo --enable-qt-peer --enable-xmlj --enable-gconf-peer --enable-tool-wrappers --with-gjdoc --enable-portable-native-sync --enable-libgcj-multifile --with-stabs --enable-hash-synchronization --enable-gc-debug --enable-interpreter --with-system-zlib --enable-libada --with-tls --with-cpu=athlon-xp --with-arch=athlon-xp --enable-checking=assert,fold,gc,gcac,misc,rtl,rtlflag,runtime,tree Thread model: posix gcc version 4.2.0 20070505 (prerelease) -- Summary: Mauve test "wonka" causes "java.lang.IllegalMonitorStateException: current thread not owner" error Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libgcj AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rob1weld at aol dot com GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31931