public static IVMInstall ensureJavaXXdefaultVM(String version) throws CoreException { // Before doing anything check the current default VM IVMInstall vm = JavaRuntime.getDefaultVMInstall(); if (JavaUtils.isJavaXX(vm, version)) { return vm; // Done! } vm = getJavaXXVM(version); if (vm == null) { vm = JavaUtils.createVM(getVMLocation(version)); } if (!JavaUtils.isJavaXX(vm, version)) { throw new Error("vm at " + vm.getInstallLocation() + " doesn't look like a Java " + version); } JavaRuntime.setDefaultVMInstall(vm, new NullProgressMonitor()); return vm; }