src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java

rev 11078 : 8025619: (fc) FileInputStream.getChannel on closed stream returns FileChannel that doesn't know that stream is closed
Summary: If the stream is closed ensure getChannel() returns a closed channel. Also, FileKey.create() should throw an IOException directly instead of wrapping it in an Error.
Reviewed-by: TBD

@@ -108,10 +108,13 @@
     }
 
     // -- Standard channel operations --
 
     protected void implCloseChannel() throws IOException {
+        if (!fd.valid())
+            return; // nothing to do
+
         // Release and invalidate any locks that we still hold
         if (fileLockTable != null) {
             for (FileLock fl: fileLockTable.removeAll()) {
                 synchronized (fl) {
                     if (fl.isValid()) {