Y20240918-1000
https://github.com/eclipse-platform/eclipse.platform.ui/issues/2225 java.io.File.canWrite() and java.nio.file.Files.isWritable(Path) can not be trusted on windows. they may return wrong values. see for example JDK-8282720, JDK-8148211, JDK-8154915 => allow the user to press "Launch" even if jdk states the directory is not writable