From b82e4bf7719e75eda2c3e60cdae593a7bd8f6979 Mon Sep 17 00:00:00 2001
From: Jens Baumgart <jens.baumgart@sap.com>
Date: Wed, 9 Feb 2011 15:12:31 +0100
Subject: [PATCH] Fix NPE on reading global config on MAC

Bug: 336610

Change-Id: Iefcb85e791723801faa315b3ee45fb19e3ca52fb
Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>
---
 org.eclipse.jgit/src/org/eclipse/jgit/util/FS_POSIX.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_POSIX.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_POSIX.java
index e69596313..14fac15df 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_POSIX.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS_POSIX.java
@@ -66,7 +66,12 @@ abstract class FS_POSIX extends FS {
 			String w = readPipe(userHome(), //
 					new String[] { "bash", "--login", "-c", "which git" }, //
 					Charset.defaultCharset().name());
-			return new File(w).getParentFile().getParentFile();
+			if (w == null || w.length() == 0)
+				return null;
+			File parentFile = new File(w).getParentFile();
+			if (parentFile == null)
+				return null;
+			return parentFile.getParentFile();
 		}
 
 		return null;