FS: Improve javadoc of some recently introduced methods

Change-Id: I31e788ee20ac3e8439559d9060d39e9792f6dc7d
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
index 3cd93582121525118cf011626a1210dde920c576..24b8974e973d26b21d0127bee38acd8dc42f97de 100644 (file)
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
@@ -515,13 +515,15 @@ public abstract class FS {
        }
 
        /**
-        * @return the path to the Git executable.
+        * @return the path to the Git executable or {@code null} if it cannot be
+        *         determined.
         * @since 4.0
         */
        protected abstract File discoverGitExe();
 
        /**
-        * @return the path to the system-wide Git configuration file.
+        * @return the path to the system-wide Git configuration file or
+        *         {@code null} if it cannot be determined.
         * @since 4.0
         */
        protected File discoverGitSystemConfig() {