Use Logger's built-in String formatting

Change-Id: I6908ae6f92092280566dcf6e7d2bc1e85c5c35c4
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/AccountLimitsConfig.java b/src/main/java/com/googlesource/gerrit/plugins/quota/AccountLimitsConfig.java
index 81dbcd8..e27697a 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/AccountLimitsConfig.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/AccountLimitsConfig.java
@@ -19,7 +19,6 @@
 
 import com.google.common.collect.ArrayTable;
 import com.google.common.collect.Table;
-import java.text.MessageFormat;
 import java.util.Arrays;
 import java.util.Locale;
 import java.util.Map;
@@ -168,14 +167,17 @@
   private void logNotRateUnit(String section, String subsection, String name, String valueString) {
     if (subsection != null) {
       log.error(
-          MessageFormat.format(
-              "Invalid rate unit value: {0}.{1}.{2}={3}; ignoring the configuration entry",
-              section, subsection, name, valueString));
+          "Invalid rate unit value: {}.{}.{}={}; ignoring the configuration entry",
+          section,
+          subsection,
+          name,
+          valueString);
     } else {
       log.error(
-          MessageFormat.format(
-              "Invalid rate unit value: {0}.{1}={2}; ignoring the configuration entry",
-              section, name, valueString));
+          "Invalid rate unit value: {}.{}={}; ignoring the configuration entry",
+          section,
+          name,
+          valueString);
     }
   }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java b/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
index 5e923ad..f01255a 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
@@ -118,7 +118,7 @@
       long maxPackSize = Ordering.<Long>natural().nullsLast().min(maxPackSize1, maxPackSize2);
       rp.setMaxPackSizeLimit(maxPackSize);
     } catch (ExecutionException e) {
-      log.warn("Couldn't setMaxPackSizeLimit on receive-pack for " + project.get(), e);
+      log.warn("Couldn't setMaxPackSizeLimit on receive-pack for {}", project, e);
     }
   }
 
@@ -129,7 +129,7 @@
       try {
         cache.get(project).getAndAdd(rp.getPackSize());
       } catch (ExecutionException e) {
-        log.warn("Couldn't process onPostReceive for " + project.get(), e);
+        log.warn("Couldn't process onPostReceive for {}", project, e);
       }
     }
   }
@@ -210,7 +210,7 @@
     try {
       cache.get(p).set(size);
     } catch (ExecutionException e) {
-      log.warn("Error setting the size of project " + p.get(), e);
+      log.warn("Error setting the size of project {}", p, e);
     }
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/ProjectNameResolver.java b/src/main/java/com/googlesource/gerrit/plugins/quota/ProjectNameResolver.java
index 038a201..bf3ece6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/ProjectNameResolver.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/ProjectNameResolver.java
@@ -43,7 +43,7 @@
       String n = p.substring(0, p.length() - ".git".length());
       return new Project.NameKey(n);
     }
-    log.warn("Couldn't determine the project name from " + gitDir);
+    log.warn("Couldn't determine the project name from {}", gitDir);
     return null;
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/Publisher.java b/src/main/java/com/googlesource/gerrit/plugins/quota/Publisher.java
index 319c2eb..b7a43db 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/Publisher.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/Publisher.java
@@ -52,7 +52,7 @@
         events.add(creator.create());
       } catch (RuntimeException e) {
         String creatorName = creator.getName();
-        log.warn("Exception in usage data event creator " + creatorName, e);
+        log.warn("Exception in usage data event creator {}", creatorName, e);
       }
     }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/RateLimitUploadListener.java b/src/main/java/com/googlesource/gerrit/plugins/quota/RateLimitUploadListener.java
index 0b36ebb..dfac1d9 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/RateLimitUploadListener.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/RateLimitUploadListener.java
@@ -132,17 +132,14 @@
       try {
         limiter = limitsPerAccount.get(accountId).get();
       } catch (ExecutionException e) {
-        String msg = MessageFormat.format("Cannot get rate limits for account ''{0}''", accountId);
-        log.warn(msg, e);
+        log.warn("Cannot get rate limits for account ''{}''", accountId, e);
       }
     } else {
       try {
         limiter = limitsPerRemoteHost.get(remoteHost).get();
       } catch (ExecutionException e) {
-        String msg =
-            MessageFormat.format(
-                "Cannot get rate limits for anonymous access from remote host ''{0}''", remoteHost);
-        log.warn(msg, e);
+        log.warn(
+            "Cannot get rate limits for anonymous access from remote host ''{}''", remoteHost, e);
       }
     }
     if (limiter != null && !limiter.tryAcquire()) {
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/RestApiRateLimiter.java b/src/main/java/com/googlesource/gerrit/plugins/quota/RestApiRateLimiter.java
index eb9c493..ca59d8d 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/RestApiRateLimiter.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/RestApiRateLimiter.java
@@ -80,20 +80,17 @@
           rateLimiterHolder = limitsPerAccount.get(accountId);
         } catch (ExecutionException e) {
           rateLimiterHolder = Holder.EMPTY;
-          String msg =
-              MessageFormat.format("Cannot get rate limits for account ''{0}''", accountId);
-          log.warn(msg, e);
+          log.warn("Cannot get rate limits for account ''{}''", accountId, e);
         }
       } else {
         try {
           rateLimiterHolder = limitsPerRemoteHost.get(req.getRemoteHost());
         } catch (ExecutionException e) {
           rateLimiterHolder = Holder.EMPTY;
-          String msg =
-              MessageFormat.format(
-                  "Cannot get rate limits for anonymous access from remote host ''{0}''",
-                  req.getRemoteHost());
-          log.warn(msg, e);
+          log.warn(
+              "Cannot get rate limits for anonymous access from remote host ''{}''",
+              req.getRemoteHost(),
+              e);
         }
       }
       if (!rateLimiterHolder.hasGracePermits()