Remove references to Zookeeper in logs

Zookeeper may be an implementation of GlobalRefDatabase, but the
comments in this plugin need to be generic.

Change-Id: I29d1711a6087ef0ea53e7b4c092c281537e50b6b

src/main/java/com/gerritforge/gerrit/globalrefdb/validation/RefUpdateValidator.java

diff --git a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/RefUpdateValidator.java b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/RefUpdateValidator.java
index 5972ad3..35ad560 100644
--- a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/RefUpdateValidator.java
+++ b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/RefUpdateValidator.java
@@ -221,9 +221,9 @@
 
     String errorMessage =
         String.format(
-            "Not able to persist the data in Zookeeper for project '%s' and ref '%s',"
+            "Not able to persist the data in SharedRef for project '%s' and ref '%s',"
                 + "the cluster is now in Split Brain since the commit has been "
-                + "persisted locally but not in SharedRef the value %s",
+                + "persisted locally but not in global-refdb the value %s",
             projectName, refPair.getName(), refPair.putValue);
     boolean succeeded;
     try {
@@ -232,7 +232,7 @@
               Project.nameKey(projectName), refPair.compareRef, refPair.putValue);
     } catch (GlobalRefDbSystemError e) {
       logger.atWarning().withCause(e).log(
-          "Not able to persist the data in Zookeeper for project '{}' and ref '{}', message: {}",
+          "Not able to persist the data in global-refdb for project '{}' and ref '{}', message: {}",
           projectName,
           refPair.getName(),
           e.getMessage());
@@ -347,7 +347,7 @@
                   logger.atSevere().withCause(closingException).log(
                       "Exception trying to release resource %s, "
                           + "the locked resources won't be accessible in all cluster unless"
-                          + " the lock is removed from ZK manually",
+                          + " the lock is removed from global-refdb manually",
                       closeable);
                 }
               });

src/test/java/com/gerritforge/gerrit/globalrefdb/validation/BatchRefUpdateValidatorTest.java

diff --git a/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/BatchRefUpdateValidatorTest.java b/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/BatchRefUpdateValidatorTest.java
index bb572a8..ff18ed7 100644
--- a/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/BatchRefUpdateValidatorTest.java
+++ b/src/test/java/com/gerritforge/gerrit/globalrefdb/validation/BatchRefUpdateValidatorTest.java
@@ -91,7 +91,7 @@
   }
 
   @Test
-  public void immutableChangeShouldNotBeWrittenIntoZk() throws Exception {
+  public void immutableChangeShouldNotBeWrittenIntoSharedRefDb() throws Exception {
     String AN_IMMUTABLE_REF = "refs/changes/01/1/1";
 
     List<ReceiveCommand> cmds = Arrays.asList(new ReceiveCommand(A, B, AN_IMMUTABLE_REF, UPDATE));