STRY50515803: Fixed NullPointerException when saving .jgitconfig file (#17)

Co-authored-by: junna.cui <[email protected]>

Author: junnacui

org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java

@@ -17,9 +17,9 @@
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
-//import java.nio.file.InvalidPathException;
+import java.nio.file.InvalidPathException;
 import java.nio.file.Path;
-//import java.nio.file.Paths;
+import java.nio.file.Paths;
 import java.security.AccessControlException;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
@@ -117,7 +117,7 @@ public FileBasedConfig openUserConfig(Config parent, FS fs) {
 		}
 
 		private Path getXDGConfigHome(FS fs) {
-			/*String configHomePath = getenv(Constants.XDG_CONFIG_HOME);
+			String configHomePath = getenv(Constants.XDG_CONFIG_HOME);
 			if (StringUtils.isEmptyOrNull(configHomePath)) {
 				configHomePath = new File(fs.userHome(), ".config") //$NON-NLS-1$
 						.getAbsolutePath();
@@ -127,7 +127,7 @@ private Path getXDGConfigHome(FS fs) {
 			} catch (InvalidPathException e) {
 				LOG.error(JGitText.get().logXDGConfigHomeInvalid,
 						configHomePath, e);
-			}*/
+			}
 			return null;
 		}