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

*** 108,117 ****
--- 108,120 ----
      }
  
      // -- 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()) {