replace to be deprecated getWhen()

Author: vladak

opengrok-indexer/src/main/java/org/opengrok/indexer/history/GitRepository.java

@@ -18,7 +18,7 @@
  */
 
 /*
- * Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2025, Oracle and/or its affiliates. All rights reserved.
  * Portions Copyright (c) 2017, 2020, Chris Fraire <[email protected]>.
  * Portions Copyright (c) 2019, Krystof Tulinger <[email protected]>.
  * Portions Copyright (c) 2023, Ric Harris <[email protected]>.
@@ -533,7 +533,7 @@ public void traverseHistory(File file, String sinceRevision, String tillRevision
             for (RevCommit commit : walk) {
                 CommitInfo commitInfo = new CommitInfo(commit.getId().name(),
                         commit.getId().abbreviate(GIT_ABBREV_LEN).name(),
-                        commit.getAuthorIdent().getWhen(), commit.getAuthorIdent().getName(),
+                        Date.from(commit.getAuthorIdent().getWhenAsInstant()), commit.getAuthorIdent().getName(),
                         commit.getAuthorIdent().getEmailAddress(), commit.getFullMessage());
 
                 for (ChangesetVisitor visitor : visitors) {