Merge changes I9f1842c2,Ie139133b

* changes:
  Throw invalid ref exception instead of invalid remote exception
  Use constant for logs directory

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

@@ -47,7 +47,7 @@ import java.text.MessageFormat;
 import java.util.Collection;
 
 import org.eclipse.jgit.JGitText;
-import org.eclipse.jgit.api.errors.InvalidRemoteException;
+import org.eclipse.jgit.api.errors.InvalidRefNameException;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.storage.file.ReflogEntry;
@@ -91,8 +91,8 @@ public class ReflogCommand extends GitCommand<Collection<ReflogEntry>> {
 			ReflogReader reader = new ReflogReader(repo, ref);
 			return reader.getReverseEntries();
 		} catch (IOException e) {
-			throw new InvalidRemoteException(MessageFormat.format(
+			throw new InvalidRefNameException(MessageFormat.format(
-					JGitText.get().cannotRead, ref));
+					JGitText.get().cannotRead, ref), e);
 		}
 	}
 

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

@@ -49,4 +49,12 @@ public class InvalidRefNameException extends GitAPIException {
 	public InvalidRefNameException(String msg) {
 		super(msg);
 	}
+
+	/**
+	 * @param msg
+	 * @param cause
+	 */
+	public InvalidRefNameException(String msg, Throwable cause) {
+		super(msg, cause);
+	}
 }

org.eclipse.jgit/src/org/eclipse/jgit/storage/file/ReflogReader.java

@@ -51,6 +51,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
+import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.util.IO;
 import org.eclipse.jgit.util.RawParseUtils;
@@ -66,7 +67,7 @@ public class ReflogReader {
 	 * @param refname
 	 */
 	public ReflogReader(Repository db, String refname) {
-		logName = new File(db.getDirectory(), "logs/" + refname);
+		logName = new File(db.getDirectory(), Constants.LOGS + '/' + refname);
 	}
 
 	/**