avoid NPE

Vladimir Kotal · Vladimir Kotal · commit c8a8f1d20847 · 2021-07-23T11:43:16.000+02:00
diff --git a/opengrok-indexer/src/main/java/org/opengrok/indexer/history/GitRepository.java b/opengrok-indexer/src/main/java/org/opengrok/indexer/history/GitRepository.java
@@ -793,9 +793,14 @@ private RevCommit getCommit(org.eclipse.jgit.lib.Repository repository, Ref ref)
     }
 
     @Override
+    @Nullable
     String determineParent(CommandTimeoutType cmdType) throws IOException {
         try (org.eclipse.jgit.lib.Repository repository = getJGitRepository(getDirectoryName())) {
-            return repository.getConfig().getString("remote", "origin", "url");
+            if (repository.getConfig() != null) {
+                return repository.getConfig().getString("remote", "origin", "url");
+            } else {
+                return null;
+            }
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -793,9 +793,14 @@ private RevCommit getCommit(org.eclipse.jgit.lib.Repository repository, Ref ref)`
`793`	`793`	`}`
`794`	`794`
`795`	`795`	`@Override`
	`796`	`+ @Nullable`
`796`	`797`	`String determineParent(CommandTimeoutType cmdType) throws IOException {`
`797`	`798`	`try (org.eclipse.jgit.lib.Repository repository = getJGitRepository(getDirectoryName())) {`
`798`		`- return repository.getConfig().getString("remote", "origin", "url");`
	`799`	`+ if (repository.getConfig() != null) {`
	`800`	`+ return repository.getConfig().getString("remote", "origin", "url");`
	`801`	`+ } else {`
	`802`	`+ return null;`
	`803`	`+ }`
`799`	`804`	`}`
`800`	`805`	`}`
`801`	`806`