Fix Quality flaws around NPE

3 files changed, 5 insertions, 3 deletions

diff --git a/server/sonar-server/src/main/java/org/sonar/server/plugins/ws/PluginWSCommons.java b/server/sonar-server/src/main/java/org/sonar/server/plugins/ws/PluginWSCommons.java
index 2bace234654..63012719a7c 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/plugins/ws/PluginWSCommons.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/plugins/ws/PluginWSCommons.java
@@ -29,6 +29,7 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
+import javax.annotation.CheckForNull;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import org.sonar.api.utils.text.JsonWriter;
@@ -269,7 +270,8 @@ public class PluginWSCommons {
     }
   }
 
-  static String categoryOrNull(Plugin plugin) {
+  @CheckForNull
+  static String categoryOrNull(@Nullable Plugin plugin) {
     return plugin != null ? plugin.getCategory() : null;
   }
 
diff --git a/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/DeselectAction.java b/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/DeselectAction.java
index 29c947d5afa..b90315ff228 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/DeselectAction.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/DeselectAction.java
@@ -20,7 +20,7 @@
 package org.sonar.server.qualitygate.ws;
 
 import com.google.common.base.Optional;
-import org.elasticsearch.common.Nullable;
+import javax.annotation.Nullable;
 import org.sonar.api.server.ws.Request;
 import org.sonar.api.server.ws.Response;
 import org.sonar.api.server.ws.WebService;
diff --git a/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/SelectAction.java b/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/SelectAction.java
index c4ea2e424e7..318c11ee04e 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/SelectAction.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/qualitygate/ws/SelectAction.java
@@ -20,7 +20,7 @@
 package org.sonar.server.qualitygate.ws;
 
 import com.google.common.base.Optional;
-import org.elasticsearch.common.Nullable;
+import javax.annotation.Nullable;
 import org.sonar.api.server.ws.Request;
 import org.sonar.api.server.ws.Response;
 import org.sonar.api.server.ws.WebService;