Hi Daniel, when starting "rmid" from current builds on Linux (and probably other Unix platforms as well) we are currently getting the exception below.
It looks as if on that path libnio was not loaded and hence we're getting an UnsatisfiedLinkError. In UnixNativeDispatcher.java one can find a static initialization block which should do that, however, it needs elevated access. Maybe rmid is missing a permission for that? Any thoughts? Thanks & best regards Christoph ...>/jdk9-build-dir/images/jdk/bin/rmid Exception in thread "main" java.lang.UnsatisfiedLinkError: sun.nio.fs.UnixNativeDispatcher.getcwd()[B at java.base/sun.nio.fs.UnixNativeDispatcher.getcwd(Native Method) at java.base/sun.nio.fs.UnixFileSystem.<init>(UnixFileSystem.java:66) at java.base/sun.nio.fs.LinuxFileSystem.<init>(LinuxFileSystem.java:39) at java.base/sun.nio.fs.LinuxFileSystemProvider.newFileSystem(LinuxFileSystemProvider.java:46) at java.base/sun.nio.fs.LinuxFileSystemProvider.newFileSystem(LinuxFileSystemProvider.java:39) at java.base/sun.nio.fs.UnixFileSystemProvider.<init>(UnixFileSystemProvider.java:56) at java.base/sun.nio.fs.LinuxFileSystemProvider.<init>(LinuxFileSystemProvider.java:41) at java.base/sun.nio.fs.DefaultFileSystemProvider.create(DefaultFileSystemProvider.java:41) at java.base/java.io.FilePermission.<clinit>(FilePermission.java:206) at java.base/java.lang.SecurityManager.checkRead(SecurityManager.java:899) at java.base/java.io.File.exists(File.java:815) at java.base/java.lang.ClassLoader$2.run(ClassLoader.java:2513) at java.base/java.lang.ClassLoader$2.run(ClassLoader.java:2510) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2509) at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2478) at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:873) at java.base/java.lang.System.loadLibrary(System.java:1818) at java.base/sun.nio.fs.UnixNativeDispatcher$1.run(UnixNativeDispatcher.java:611) at java.base/sun.nio.fs.UnixNativeDispatcher$1.run(UnixNativeDispatcher.java:609) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/sun.nio.fs.UnixNativeDispatcher.<clinit>(UnixNativeDispatcher.java:609) at java.base/sun.nio.fs.UnixFileSystem.<init>(UnixFileSystem.java:66) at java.base/sun.nio.fs.LinuxFileSystem.<init>(LinuxFileSystem.java:39) at java.base/sun.nio.fs.LinuxFileSystemProvider.newFileSystem(LinuxFileSystemProvider.java:46) at java.base/sun.nio.fs.LinuxFileSystemProvider.newFileSystem(LinuxFileSystemProvider.java:39) at java.base/sun.nio.fs.UnixFileSystemProvider.<init>(UnixFileSystemProvider.java:56) at java.base/sun.nio.fs.LinuxFileSystemProvider.<init>(LinuxFileSystemProvider.java:41) at java.base/sun.nio.fs.DefaultFileSystemProvider.create(DefaultFileSystemProvider.java:41) at java.base/java.nio.file.FileSystems.<clinit>(FileSystems.java:91) at java.base/java.nio.file.Paths.get(Paths.java:84) at java.base/jdk.internal.jimage.ImageReaderFactory.<clinit>(ImageReaderFactory.java:50) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/sun.net.www.protocol.jrt.JavaRuntimeURLConnection.<clinit>(JavaRuntimeURLConnection.java:59) at java.base/sun.net.www.protocol.jrt.Handler.openConnection(Handler.java:42) at java.base/java.net.URL.openConnection(URL.java:1049) at java.base/jdk.internal.module.SystemModuleFinder$ImageModuleReader.checkPermissionToConnect(SystemModuleFinder.java:287) at java.base/jdk.internal.module.SystemModuleFinder$ImageModuleReader.<init>(SystemModuleFinder.java:296) at java.base/jdk.internal.module.SystemModuleFinder$1.get(SystemModuleFinder.java:245) at java.base/jdk.internal.module.SystemModuleFinder$1.get(SystemModuleFinder.java:242) at java.base/jdk.internal.module.ModuleReferenceImpl.open(ModuleReferenceImpl.java:83) at java.base/jdk.internal.loader.BuiltinClassLoader.createModuleReader(BuiltinClassLoader.java:934) at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1719) at java.base/jdk.internal.loader.BuiltinClassLoader.moduleReaderFor(BuiltinClassLoader.java:926) at java.base/jdk.internal.loader.BuiltinClassLoader.access$100(BuiltinClassLoader.java:92) at java.base/jdk.internal.loader.BuiltinClassLoader$1.run(BuiltinClassLoader.java:356) at java.base/jdk.internal.loader.BuiltinClassLoader$1.run(BuiltinClassLoader.java:351) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/jdk.internal.loader.BuiltinClassLoader.findMiscResource(BuiltinClassLoader.java:350) at java.base/jdk.internal.loader.BuiltinClassLoader.findResources(BuiltinClassLoader.java:311) at java.base/jdk.internal.loader.BootLoader.findResources(BootLoader.java:156) at java.base/java.lang.ClassLoader.getResources(ClassLoader.java:1430) at java.base/java.lang.ClassLoader.getResources(ClassLoader.java:1428) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNextService(ServiceLoader.java:1082) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.access$1200(ServiceLoader.java:1004) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator$1.run(ServiceLoader.java:1131) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator$1.run(ServiceLoader.java:1130) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNext(ServiceLoader.java:1133) at java.base/java.util.ServiceLoader$1.hasNext(ServiceLoader.java:1163) at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1258) at java.base/java.nio.channels.spi.SelectorProvider.loadProviderAsService(SelectorProvider.java:122) at java.base/java.nio.channels.spi.SelectorProvider.access$200(SelectorProvider.java:69) at java.base/java.nio.channels.spi.SelectorProvider$1.run(SelectorProvider.java:180) at java.base/java.nio.channels.spi.SelectorProvider$1.run(SelectorProvider.java:176) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.nio.channels.spi.SelectorProvider.provider(SelectorProvider.java:175) at java.base/java.lang.System.inheritedChannel(System.java:276) at java.rmi/sun.rmi.server.Activation$2.run(Activation.java:1960) at java.rmi/sun.rmi.server.Activation$2.run(Activation.java:1958) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.rmi/sun.rmi.server.Activation.main(Activation.java:1957)