So, I Googled, checked the forum and in the end I decided to remove JME3.1, download it and install it again, but without any luck. When I create a new project (BasicGame) and try to launch it, same message pops up and nothing happends anymore.
Anyone has any idea what went wrong here? And even better: What do I need to do to fix it?
Are you running on nVidia graphics hardware, and have you updated your driver recently? A recent nVidia update borked out their OpenGL implementation pretty severely. With that Java error code, my guess is that something in the native layer is causing the VM to crash - others on the forums have been having similar issues with the nVidia OpenGL bug.