Fix violations

sonar-batch/src/main/java/org/sonar/batch/bootstrap/JdbcDriverHolder.java

@@ -36,7 +36,7 @@ import java.util.List;
  */
 public class JdbcDriverHolder {
 
-  private static Logger LOG = LoggerFactory.getLogger(JdbcDriverHolder.class);
+  private static final Logger LOG = LoggerFactory.getLogger(JdbcDriverHolder.class);
   private JdbcDriverClassLoader classLoader;
 
   public JdbcDriverHolder(ArtifactDownloader extensionDownloader) {

sonar-check-api/src/main/java/org/sonar/check/Message.java

@@ -22,6 +22,9 @@ package org.sonar.check;
 
 import java.util.Locale;
 
+/**
+ * @deprecated in 2.3
+ */
 @Deprecated
 public interface Message {
 

sonar-plugin-api/src/main/java/org/sonar/api/resources/Project.java

@@ -382,6 +382,7 @@ public class Project extends Resource {
    * 
    * @deprecated since 2.6. See http://jira.codehaus.org/browse/SONAR-2126
    */
+  @Deprecated
   public Project setFileSystem(ProjectFileSystem fs) {
     this.fileSystem = fs;
     return this;