Throw API exception when LsRemoteCommand fails with TransportException

In many cases applications want to handle TransportException hence
expose it as an API exception.

Change-Id: I64b885ecfb1a35bd93c89026c6298d1820ba69d0
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/api/LsRemoteCommand.java

@@ -42,7 +42,6 @@
  */
 package org.eclipse.jgit.api;
 
-import java.io.IOException;
 import java.net.URISyntaxException;
 import java.text.MessageFormat;
 import java.util.ArrayList;
@@ -54,6 +53,8 @@ import org.eclipse.jgit.JGitText;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.api.errors.InvalidRemoteException;
 import org.eclipse.jgit.api.errors.JGitInternalException;
+import org.eclipse.jgit.errors.NotSupportedException;
+import org.eclipse.jgit.errors.TransportException;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.Ref;
 import org.eclipse.jgit.lib.Repository;
@@ -176,10 +177,14 @@ public class LsRemoteCommand extends
 		} catch (URISyntaxException e) {
 			throw new InvalidRemoteException(MessageFormat.format(
 					JGitText.get().invalidRemote, remote));
-		} catch (IOException e) {
+		} catch (NotSupportedException e) {
 			throw new JGitInternalException(
 					JGitText.get().exceptionCaughtDuringExecutionOfLsRemoteCommand,
 					e);
+		} catch (TransportException e) {
+				throw new org.eclipse.jgit.api.errors.TransportException(
+					JGitText.get().exceptionCaughtDuringExecutionOfLsRemoteCommand,
+					e);
 		} finally {
 			if (fc != null)
 				fc.close();

org.eclipse.jgit/src/org/eclipse/jgit/api/errors/TransportException.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2012, Matthias Sohn <matthias.sohn@sap.com> and
+ * other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v1.0 which accompanies this
+ * distribution, is reproduced below, and is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.eclipse.jgit.api.errors;
+
+/**
+ * Exception thrown when transport operation failed
+ */
+public class TransportException extends GitAPIException {
+	private static final long serialVersionUID = 1L;
+
+	/**
+	 * @param msg
+	 *            message describing the transport failure.
+	 */
+	public TransportException(String msg) {
+		super(msg);
+	}
+
+	/**
+	 * @param msg
+	 *            message describing the transport exception.
+	 * @param cause
+	 *            why the transport failed.
+	 */
+	public TransportException(String msg, Throwable cause) {
+		super(msg, cause);
+	}
+}