Add toString method to project list cache

Add meaningful string representation for PeriodicProjectListCacheWarmer
class so that task entry corresponding to it is readable in gerrit
show-queue output.

Change-Id: I8138f19c4354911d76233cd1fe7a7f89e6c4262d
Release-Notes: skip

1 files changed, 5 insertions, 0 deletions

diff --git a/java/com/google/gerrit/server/project/PeriodicProjectListCacheWarmer.java b/java/com/google/gerrit/server/project/PeriodicProjectListCacheWarmer.java
index df2e1cf4d8..47d43b93a8 100644
--- a/java/com/google/gerrit/server/project/PeriodicProjectListCacheWarmer.java
+++ b/java/com/google/gerrit/server/project/PeriodicProjectListCacheWarmer.java
@@ -92,6 +92,11 @@ public class PeriodicProjectListCacheWarmer implements Runnable {
   }
 
   @Override
+  public String toString() {
+    return "Project List Cache Warmer";
+  }
+
+  @Override
   public void run() {
     logger.atFine().log("Loading project_list cache");
     cache.refreshProjectList();