Control: forwarded -1 https://bugs.openjdk.java.net/browse/JDK-8200610
The bug is now visible upstream. but they closed it immediately. Unfortunately I can't comment on the bug, because I am unable to figure out how to open an account, but the suspected output path is definitely writeable (after all compiling with an older openjdk version works), so whatever is going on here, it must be something different. In addition: When I build the package with cowbuilder (arch:i386) it fails, but when I then drop into a shell within cowbuilder, and then run dpkg-buildpackage manually, the error doesn't occur any more. OTOH, when compiling the package directly on the host system (amd64) the error is always reproducible, running e.g. javac -verbose -classpath /usr/share/java/vtk6.jar \ vtkGDCMImageReader.java in the correct sub directory terminates with: ---- [wrote SimpleFileObject[/home/gerddie/Debian/debian-med/build- area/gdcm-2.8.4/obj-x86_64-linux- gnu/Utilities/VTK/java/vtk/vtkGDCMImageReader.class]] [total 1308ms] An exception has occurred ... --- The file vtkGDCMImageReader.class is written and has a non-zero size. Running javac with "strace -f" doesn't show any strange file access close to the point when the exception is raised.