Close copy threads in case of errors

Bug: 484775
Change-Id: I3c7105188e615b6b994261f4ece0c8abc98eb444
Signed-off-by: Dmitry Neverov <dmitry.neverov@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/JschSession.java

@@ -149,14 +149,27 @@ public class JschSession implements RemoteSession {
 				channel.setCommand(commandName);
 				setupStreams();
 				channel.connect(timeout > 0 ? timeout * 1000 : 0);
-				if (!channel.isConnected())
+				if (!channel.isConnected()) {
+					closeOutputStream();
 					throw new TransportException(uri,
 							JGitText.get().connectionFailed);
+				}
 			} catch (JSchException e) {
+				closeOutputStream();
 				throw new TransportException(uri, e.getMessage(), e);
 			}
 		}
 
+		private void closeOutputStream() {
+			if (outputStream != null) {
+				try {
+					outputStream.close();
+				} catch (IOException ioe) {
+					// ignore
+				}
+			}
+		}
+
 		private void setupStreams() throws IOException {
 			inputStream = channel.getInputStream();