Created attachment 25364 [details]
a minimized code sample that can reproduce the bug

the method getReaderForText in the class DataFlavor seems not to terminate. In the minimal example program I attached, "initialized" is printed but then nothing else. The expected behavior would be that this program prints "initialized" and then prints "reader initialized" and then prints the content of the clipboard.

exact commandline used: gcj -Wall -Wextra --main=ClipboardReadTest ClipboardReadTest.java
there are no warnings or errors produced.

The .i file is not attached because the .java file is a minimized test file which includes no other files.

gcj -v says this:
Using built-in specs.
Reading specs from /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/libgcj.spec
rename spec startfile to startfileorig
rename spec lib to liborig
COLLECT_GCC=gcj
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.5.2-8ubuntu1' --with-bugurl=file:///usr/share/doc/gcj-4.5/README.Bugs --enable-languages=c,c++,java --prefix=/usr --program-suffix=-4.5 --enable-shared --enable-multiarch --with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.5 --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-time=yes --disable-libmudflap --enable-plugin --enable-gold --enable-ld=default --with-plugin-ld=ld.gold --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.5/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.5 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.5 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu1)