diff --git a/java/com/google/gerrit/httpd/GitOverHttpServlet.java b/java/com/google/gerrit/httpd/GitOverHttpServlet.java
index 7ed79c4..ab6d0f4 100644
--- a/java/com/google/gerrit/httpd/GitOverHttpServlet.java
+++ b/java/com/google/gerrit/httpd/GitOverHttpServlet.java
@@ -500,6 +500,7 @@
         }
       } catch (Throwable e) {
         logger.atSevere().withCause(e).log(
+            "%s",
             MessageFormat.format(
                 HttpServerText.get().internalErrorDuringUploadPack,
                 ServletUtils.getRepository(req)));
diff --git a/java/com/google/gerrit/server/account/externalids/ExternalIdCaseSensitivityMigrator.java b/java/com/google/gerrit/server/account/externalids/ExternalIdCaseSensitivityMigrator.java
index a59e935..a6ee366c 100644
--- a/java/com/google/gerrit/server/account/externalids/ExternalIdCaseSensitivityMigrator.java
+++ b/java/com/google/gerrit/server/account/externalids/ExternalIdCaseSensitivityMigrator.java
@@ -127,11 +127,11 @@
                   isUserNameCaseInsensitive ? "" : "in"));
           extIdNotes.commit(metaDataUpdate);
         } catch (Exception e) {
-          logger.atSevere().withCause(e).log(e.getMessage());
+          logger.atSevere().withCause(e).log("%s", e.getMessage());
         }
       }
     } catch (DuplicateExternalIdKeyException e) {
-      logger.atSevere().withCause(e).log(e.getMessage());
+      logger.atSevere().withCause(e).log("%s", e.getMessage());
       throw e;
     }
   }
diff --git a/java/com/google/gerrit/server/index/change/AllChangesIndexer.java b/java/com/google/gerrit/server/index/change/AllChangesIndexer.java
index 9f14926..6cdc9ae 100644
--- a/java/com/google/gerrit/server/index/change/AllChangesIndexer.java
+++ b/java/com/google/gerrit/server/index/change/AllChangesIndexer.java
@@ -140,7 +140,7 @@
     try {
       futures = new SliceScheduler(index, ok).schedule();
     } catch (ProjectsCollectionFailure e) {
-      logger.atSevere().log(e.getMessage());
+      logger.atSevere().log("%s", e.getMessage());
       return Result.create(sw, false, 0, 0);
     }
 
@@ -181,7 +181,7 @@
       return reindexProject(
           indexer, project, 0, 1, ChangeNotes.Factory.scanChangeIds(repo), done, failed);
     } catch (IOException e) {
-      logger.atSevere().log(e.getMessage());
+      logger.atSevere().log("%s", e.getMessage());
       return null;
     }
   }