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Created attachment 277562 [details] screenshot While setting up a run configuration for a simple PTP app I get an empty error window (see the attached screenshot) and no meaningful log reg record. I'm using latest builds of Platform, PTP, CDT, and JDT on Fedora 28 with Java 8. *Not* installing JDT makes the problem go away. Steps to reproduce: 1. Have a machine with OpenMPI and Java 8 2. Have a shell with PATH set to OpenMPI, on my Fedora it was PATH=/usr/lib64/openmpi/bin:$PATH 3. Have a fresh clean Eclipse install (latest I-build) and add CDT+JDT+PTP to it, e.g.: rm -rf .eclipse .eclipsesettings .p2 eclipse workspace tar xf eclipse-platform-I20190211-1800-linux-gtk-x86_64.tar.gz REPOS=' http://download.eclipse.org/releases/2019-03 http://download.eclipse.org/eclipse/updates/4.11 http://download.eclipse.org/tools/cdt/builds/9.7/cdt-9.7.0-simrel-2019-03-m2/ http://download.eclipse.org/tools/ptp/builds/nightly ' IUS=' org.eclipse.cdt.feature.group org.eclipse.jdt.feature.group org.eclipse.ptp.feature.group ' eclipse/eclipse -noSplash \ -application org.eclipse.equinox.p2.director \ -repository $(echo $REPOS | tr ' ' ,) \ -i $(echo $IUS | tr ' ' ,) \ -vmargs -Xmx4096m 4. Run Eclipse: eclipse/eclipse -debug -console -consoleLog -data workspace -Xms512m -Xmx4096m 6. Create a simple MPI Project: * File > New > Project... > C/C++ > C project > Next * Fill in the new C Project's details: Project name: demo Project type: Executable > MPI Hello World C Project Toolchains: Linux GCC Next > Next > * You may need to tune the MPI details, I had to: Untick "Use default information" and set "Include path" to "/usr/include/openmpi-x86_64" * Finish 7. Build the project: Right-click the project > Build Project 8. Try to create a run configuration: * Run > Run Configurations... * Select "Parallel Application" and click on the "New launch configuration" button * In the Resources tab * Select "Target System Configuration": "Generic OpenMPI Interactive" * Click on "Connection Type": "Local" Right after clicking "Local" I get the empty error window. The workspace log records just an empty message: !ENTRY org.eclipse.ptp.launch 4 4 2019-02-13 13:30:09.277 !MESSAGE Notes: 1. If I exclude org.eclipse.jdt.feature.group from the installation list then there's no problem and I can go on with the run configuration. 2. This may be related to bug 541264 - the scenario is very similar but there are some differences. Here we have: * Java 8 * different set of installed units * different error window
I can reproduce this problem with 4.12RC1 using the latest CDT and PTP. The dialog is caused by a NullPointerException in ContextFinder#handleClastCastException because the context being loaded is not an instance of JAXBContext. As far as I can tell, this I because the JRE version of JAXBContextImpl is being loaded rather than the one from com.sun.xml.bind_2.2.0.v201505121915.jar. This problem does not occur if Eclipse is run under Java 1. It also does not occur for either Java 8 or Java 11 if you use the latest Parallel Package. I really don't have any more time to try to track down the cause, particularly as it is somehow related to how you are installing the plugins.
(In reply to Greg Watson from comment #1) > I can reproduce this problem with 4.12RC1 using the latest CDT and PTP. The > dialog is caused by a NullPointerException in > ContextFinder#handleClastCastException because the context being loaded is > not an instance of JAXBContext. As far as I can tell, this I because the JRE > version of JAXBContextImpl is being loaded rather than the one from > com.sun.xml.bind_2.2.0.v201505121915.jar. This problem does not occur if > Eclipse is run under Java 1. It also does not occur for either Java 8 or > Java 11 if you use the latest Parallel Package. I really don't have any more > time to try to track down the cause, particularly as it is somehow related > to how you are installing the plugins. Greg, thank you very much for your analysis.
