Add missing @Override annotations

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/CorePlugin.java

@@ -280,6 +280,7 @@ import java.util.List;
 public final class CorePlugin extends SonarPlugin {
 
   @SuppressWarnings("rawtypes")
+  @Override
   public List getExtensions() {
     ImmutableList.Builder<Object> extensions = ImmutableList.builder();
 

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/UserManagedMetrics.java

@@ -28,6 +28,7 @@ import java.util.List;
 public final class UserManagedMetrics implements Metrics {
   private static final String DOMAIN = "Management";
 
+  @Override
   public List<Metric> getMetrics() {
     return ImmutableList.<Metric>of(
       new Metric.Builder("burned_budget", "Burned budget", Metric.ValueType.FLOAT)

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/batch/IndexProjectPostJob.java

@@ -36,6 +36,7 @@ public class IndexProjectPostJob implements PostJob {
     this.indexer = indexer;
   }
 
+  @Override
   public void executeOn(Project project, SensorContext context) {
     if (project.getId() != null) {
       indexer.indexProject(project.getId());

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/charts/DistributionAreaChart.java

@@ -34,6 +34,7 @@ import java.text.NumberFormat;
 public class DistributionAreaChart extends AbstractChart {
   private static final String PARAM_COLORS = "c";
 
+  @Override
   public String getKey() {
     return "distarea";
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/charts/DistributionBarChart.java

@@ -41,6 +41,7 @@ public class DistributionBarChart extends AbstractChart {
   public static final String PARAM_X_SUFFIX = "xsuf";
   public static final String PARAM_FONT_SIZE = "fs";
 
+  @Override
   public String getKey() {
     return "distbar";
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/charts/XradarChart.java

@@ -41,6 +41,7 @@ public class XradarChart extends AbstractChart {
   public static final String PARAM_LABELS = "l";
   public static final String PARAM_VALUES = "v";
 
+  @Override
   public String getKey() {
     return "xradar";
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/CountFalsePositivesDecorator.java

@@ -43,6 +43,7 @@ public class CountFalsePositivesDecorator implements Decorator {
     this.perspectives = perspectives;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -52,6 +53,7 @@ public class CountFalsePositivesDecorator implements Decorator {
     return CoreMetrics.FALSE_POSITIVE_ISSUES;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Issuable issuable = perspectives.as(Issuable.class, resource);
     if (issuable != null) {

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/CountUnresolvedIssuesDecorator.java

@@ -78,6 +78,7 @@ public class CountUnresolvedIssuesDecorator implements Decorator {
     this.timeMachineConfiguration = timeMachineConfiguration;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -103,6 +104,7 @@ public class CountUnresolvedIssuesDecorator implements Decorator {
       );
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Issuable issuable = perspectives.as(Issuable.class, resource);
     if (issuable != null) {

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/IssueTracking.java

@@ -336,6 +336,7 @@ public class IssueTracking implements BatchExtension {
   }
 
   private static final Comparator<LinePair> LINE_PAIR_COMPARATOR = new Comparator<LinePair>() {
+    @Override
     public int compare(LinePair o1, LinePair o2) {
       int weightDiff = o2.weight - o1.weight;
       if (weightDiff != 0) {

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/IssueTrackingDecorator.java

@@ -90,10 +90,12 @@ public class IssueTrackingDecorator implements Decorator {
     this.ruleFinder = ruleFinder;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Issuable issuable = perspectives.as(Issuable.class, resource);
     if (issuable != null) {

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/HashedSequence.java

@@ -51,6 +51,7 @@ public final class HashedSequence<S extends Sequence> implements Sequence {
     return new HashedSequence<S>(base, hashes, linesByHash);
   }
 
+  @Override
   public int length() {
     return base.length();
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/HashedSequenceComparator.java

@@ -30,6 +30,7 @@ public class HashedSequenceComparator<S extends Sequence> implements SequenceCom
     this.cmp = cmp;
   }
 
+  @Override
   public boolean equals(HashedSequence<S> a, int ai, HashedSequence<S> b, int bi) {
     if (a.hashes[ai] == b.hashes[bi]) {
       return cmp.equals(a.base, ai, b.base, bi);
@@ -37,6 +38,7 @@ public class HashedSequenceComparator<S extends Sequence> implements SequenceCom
     return false;
   }
 
+  @Override
   public int hash(HashedSequence<S> seq, int i) {
     return seq.hashes[i];
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/RollingHashSequence.java

@@ -55,6 +55,7 @@ public class RollingHashSequence<S extends Sequence> implements Sequence {
     this.hashes = hashes;
   }
 
+  @Override
   public int length() {
     return base.length();
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/RollingHashSequenceComparator.java

@@ -30,6 +30,7 @@ public class RollingHashSequenceComparator<S extends Sequence> implements Sequen
     this.cmp = cmp;
   }
 
+  @Override
   public boolean equals(RollingHashSequence<S> a, int ai, RollingHashSequence<S> b, int bi) {
     if (a.hashes[ai] == b.hashes[bi]) {
       return cmp.equals(a.base, ai, b.base, bi);
@@ -37,6 +38,7 @@ public class RollingHashSequenceComparator<S extends Sequence> implements Sequen
     return false;
   }
 
+  @Override
   public int hash(RollingHashSequence<S> seq, int i) {
     return seq.hashes[i];
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/StringText.java

@@ -40,6 +40,7 @@ public class StringText implements Sequence {
     this.lines = lineMap(content, 0, content.length());
   }
 
+  @Override
   public int length() {
     return lines.size() - 2;
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/issue/tracking/StringTextComparator.java

@@ -29,6 +29,7 @@ public abstract class StringTextComparator implements SequenceComparator<StringT
    */
   public static final StringTextComparator IGNORE_WHITESPACE = new StringTextComparator() {
 
+    @Override
     public boolean equals(StringText a, int ai, StringText b, int bi) {
       ai++;
       bi++;
@@ -72,6 +73,7 @@ public abstract class StringTextComparator implements SequenceComparator<StringT
 
   };
 
+  @Override
   public int hash(StringText seq, int line) {
     final int begin = seq.lines.get(line + 1);
     final int end = seq.lines.get(line + 2);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/security/ApplyProjectRolesDecorator.java

@@ -41,10 +41,12 @@ public class ApplyProjectRolesDecorator implements Decorator {
     this.resourcePermissions = resourcePermissions;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (shouldDecorateResource(resource)) {
       LoggerFactory.getLogger(ApplyProjectRolesDecorator.class).info("Grant default permissions to {}", resource.getKey());

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/AbstractCoverageDecorator.java

@@ -33,6 +33,7 @@ import java.util.Collection;
 
 public abstract class AbstractCoverageDecorator implements Decorator {
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -42,6 +43,7 @@ public abstract class AbstractCoverageDecorator implements Decorator {
     return Arrays.asList(getGeneratedMetric(), getGeneratedMetricForNewCode());
   }
 
+  @Override
   public void decorate(final Resource resource, final DecoratorContext context) {
     if (shouldDecorate(resource)) {
       computeMeasure(context);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/CommentDensityDecorator.java

@@ -45,10 +45,12 @@ public class CommentDensityDecorator implements Decorator {
     return Arrays.<Metric>asList(CoreMetrics.COMMENT_LINES_DENSITY, CoreMetrics.PUBLIC_DOCUMENTED_API_DENSITY);
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     saveCommentsDensity(context);
     savePublicApiDensity(context);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/DirectoriesDecorator.java

@@ -37,6 +37,7 @@ import java.util.Collection;
  */
 public final class DirectoriesDecorator implements Decorator {
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -49,6 +50,7 @@ public final class DirectoriesDecorator implements Decorator {
   /**
    * {@inheritDoc}
    */
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (MeasureUtils.hasValue(context.getMeasure(CoreMetrics.DIRECTORIES))) {
       return;

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/FileHashSensor.java

@@ -51,6 +51,7 @@ public final class FileHashSensor implements Sensor {
     this.componentDataCache = componentDataCache;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/FilesDecorator.java

@@ -36,6 +36,7 @@ import java.util.Collection;
  */
 public final class FilesDecorator implements Decorator {
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -45,6 +46,7 @@ public final class FilesDecorator implements Decorator {
     return CoreMetrics.FILES;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (MeasureUtils.hasValue(context.getMeasure(CoreMetrics.FILES))) {
       return;

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/ManualMeasureDecorator.java

@@ -43,10 +43,12 @@ public class ManualMeasureDecorator implements Decorator {
     this.metricFinder = metricFinder;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (resource.getId() != null) {
       List<ManualMeasure> manualMeasures = session.getResults(ManualMeasure.class, "resourceId", resource.getId());

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/ProjectLinksSensor.java

@@ -40,10 +40,12 @@ public class ProjectLinksSensor implements Sensor {
     this.defaultI18n = defaultI18n;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void analyse(Project project, SensorContext context) {
     handleLink(context, CoreProperties.LINKS_HOME_PAGE);
     handleLink(context, CoreProperties.LINKS_CI);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/UnitTestDecorator.java

@@ -41,6 +41,7 @@ public class UnitTestDecorator implements Decorator {
     return Arrays.<Metric>asList(CoreMetrics.TEST_EXECUTION_TIME, CoreMetrics.TESTS, CoreMetrics.TEST_ERRORS, CoreMetrics.TEST_FAILURES, CoreMetrics.TEST_SUCCESS_DENSITY);
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return !Project.AnalysisType.STATIC.equals(project.getAnalysisType());
   }
@@ -49,6 +50,7 @@ public class UnitTestDecorator implements Decorator {
     return ResourceUtils.isUnitTestClass(resource) || !ResourceUtils.isEntity(resource);
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (shouldDecorateResource(resource)) {
       sumChildren(context, CoreMetrics.TEST_EXECUTION_TIME);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/sensors/VersionEventsSensor.java

@@ -31,10 +31,12 @@ import java.util.Iterator;
 @DryRunIncompatible
 public class VersionEventsSensor implements Sensor {
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void analyse(Project project, SensorContext context) {
     if (StringUtils.isBlank(project.getAnalysisVersion())) {
       return;

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/timemachine/AbstractNewCoverageFileAnalyzer.java

@@ -76,6 +76,7 @@ public abstract class AbstractNewCoverageFileAnalyzer implements Decorator {
 
   public abstract Metric getNewUncoveredConditionsMetric();
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return !structs.isEmpty();
   }
@@ -96,6 +97,7 @@ public abstract class AbstractNewCoverageFileAnalyzer implements Decorator {
     return Arrays.asList(getNewLinesToCoverMetric(), getNewUncoveredLinesMetric(), getNewConditionsToCoverMetric(), getNewUncoveredConditionsMetric());
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (shouldDecorate(resource)) {
       doDecorate(context);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/timemachine/NewCoverageAggregator.java

@@ -38,6 +38,7 @@ import java.util.List;
 @DependedUpon(DecoratorBarriers.END_OF_TIME_MACHINE)
 public final class NewCoverageAggregator implements Decorator {
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -50,6 +51,7 @@ public final class NewCoverageAggregator implements Decorator {
       CoreMetrics.NEW_OVERALL_LINES_TO_COVER, CoreMetrics.NEW_OVERALL_UNCOVERED_LINES, CoreMetrics.NEW_OVERALL_CONDITIONS_TO_COVER, CoreMetrics.NEW_OVERALL_UNCOVERED_CONDITIONS);
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (shouldDecorate(resource)) {
       int maxPeriods = Qualifiers.isView(resource, true) ? 3 : 5;

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/timemachine/TendencyDecorator.java

@@ -94,10 +94,12 @@ public class TendencyDecorator implements Decorator {
     return query;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (shouldDecorateResource(resource)) {
       resetQuery(context.getProject(), resource);

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/timemachine/TimeMachineConfigurationPersister.java

@@ -46,6 +46,7 @@ public final class TimeMachineConfigurationPersister implements Decorator {
     this.session = session;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (ResourceUtils.isProject(resource)) {
       persistConfiguration();
@@ -63,6 +64,7 @@ public final class TimeMachineConfigurationPersister implements Decorator {
     session.commit();
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/timemachine/VariationDecorator.java

@@ -67,6 +67,7 @@ public class VariationDecorator implements Decorator {
     this.ruleFinder = ruleFinder;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -76,6 +77,7 @@ public class VariationDecorator implements Decorator {
     return pastMeasuresLoader.getMetrics();
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     for (PastSnapshot projectPastSnapshot : projectPastSnapshots) {
       if (shouldComputeVariation(resource)) {

plugins/sonar-core-plugin/src/main/java/org/sonar/plugins/core/widgets/CoreWidget.java

@@ -31,10 +31,12 @@ public abstract class CoreWidget extends AbstractRubyTemplate implements RubyRai
     this.templatePath = templatePath;
   }
 
+  @Override
   public String getId() {
     return id;
   }
 
+  @Override
   public String getTitle() {
     return title;
   }

plugins/sonar-cpd-plugin/src/main/java/org/sonar/plugins/cpd/CpdPlugin.java

@@ -33,6 +33,7 @@ import java.util.List;
 
 public final class CpdPlugin extends SonarPlugin {
 
+  @Override
   public List getExtensions() {
     return ImmutableList.of(
       PropertyDefinition.builder(CoreProperties.CPD_CROSS_PROJECT)

plugins/sonar-cpd-plugin/src/main/java/org/sonar/plugins/cpd/JavaCpdEngine.java

@@ -183,6 +183,7 @@ public class JavaCpdEngine extends CpdEngine {
       this.fileBlocks = fileBlocks;
     }
 
+    @Override
     public List<CloneGroup> call() {
       return SuffixTreeCloneDetectionAlgorithm.detect(index, fileBlocks);
     }

plugins/sonar-cpd-plugin/src/main/java/org/sonar/plugins/cpd/decorators/DuplicationDensityDecorator.java

@@ -48,10 +48,12 @@ public class DuplicationDensityDecorator implements Decorator {
     return CoreMetrics.DUPLICATED_LINES_DENSITY;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Measure nbDuplicatedLines = context.getMeasure(CoreMetrics.DUPLICATED_LINES);
     if (nbDuplicatedLines == null) {

plugins/sonar-cpd-plugin/src/main/java/org/sonar/plugins/cpd/index/SonarDuplicationsIndex.java

@@ -59,6 +59,7 @@ public class SonarDuplicationsIndex extends AbstractCloneIndex {
     return mem.getByResourceId(resourceKey);
   }
 
+  @Override
   public Collection<Block> getBySequenceHash(ByteArray hash) {
     if (db == null) {
       return mem.getBySequenceHash(hash);
@@ -69,10 +70,12 @@ public class SonarDuplicationsIndex extends AbstractCloneIndex {
     }
   }
 
+  @Override
   public Collection<Block> getByResourceId(String resourceId) {
     throw new UnsupportedOperationException();
   }
 
+  @Override
   public void insert(Block block) {
     throw new UnsupportedOperationException();
   }

plugins/sonar-dbcleaner-plugin/src/main/java/org/sonar/plugins/dbcleaner/DbCleanerPlugin.java

@@ -33,6 +33,7 @@ import java.util.List;
 
 public final class DbCleanerPlugin extends SonarPlugin {
 
+  @Override
   public List getExtensions() {
     return ImmutableList.builder().add(DefaultPeriodCleaner.class, DefaultPurgeTask.class, ProjectPurgePostJob.class)
       .addAll(propertyDefinitions()).build();

plugins/sonar-dbcleaner-plugin/src/main/java/org/sonar/plugins/dbcleaner/DefaultPurgeTask.java

@@ -50,11 +50,13 @@ public class DefaultPurgeTask implements PurgeTask {
     this.profiler = profiler;
   }
 
+  @Override
   public PurgeTask delete(long resourceId) {
     purgeDao.deleteResourceTree(resourceId);
     return this;
   }
 
+  @Override
   public PurgeTask purge(long resourceId) {
     long start = System.currentTimeMillis();
     profiler.reset();

plugins/sonar-dbcleaner-plugin/src/main/java/org/sonar/plugins/dbcleaner/ProjectPurgePostJob.java

@@ -34,6 +34,7 @@ public class ProjectPurgePostJob implements PostJob {
     this.purgeTask = purgeTask;
   }
 
+  @Override
   public void executeOn(final Project project, SensorContext context) {
     purgeTask.purge(project.getId());
   }

plugins/sonar-email-notifications-plugin/src/main/java/org/sonar/plugins/emailnotifications/EmailNotificationsPlugin.java

@@ -25,6 +25,7 @@ import org.sonar.api.SonarPlugin;
 import java.util.List;
 
 public class EmailNotificationsPlugin extends SonarPlugin {
+  @Override
   public List getExtensions() {
     return ImmutableList.of(
       EmailNotificationChannel.class,

plugins/sonar-git-plugin/src/main/java/org/sonar/plugins/scm/git/GitBlameConsumer.java

@@ -63,6 +63,7 @@ public class GitBlameConsumer implements StreamConsumer {
     this.filename = filename;
   }
 
+  @Override
   public void consumeLine(String line) {
     if (line == null) {
       return;

plugins/sonar-git-plugin/src/main/java/org/sonar/plugins/scm/git/GitPlugin.java

@@ -34,6 +34,7 @@ public final class GitPlugin extends SonarPlugin {
   static final String JGIT = "jgit";
   static final String EXE = "exe";
 
+  @Override
   public List getExtensions() {
     return ImmutableList.of(
       GitScmProvider.class,

plugins/sonar-l10n-en-plugin/src/main/java/org/sonar/plugins/l10n/EnglishPackPlugin.java

@@ -27,6 +27,7 @@ import java.util.List;
 
 public final class EnglishPackPlugin extends SonarPlugin {
 
+  @Override
   public List getExtensions() {
     return Collections.emptyList();
   }

plugins/sonar-svn-plugin/src/main/java/org/sonar/plugins/scm/svn/SvnBlameCommand.java

@@ -83,6 +83,7 @@ public class SvnBlameCommand implements BlameCommand, BatchComponent {
 
   private Future<Void> submitTask(final FileSystem fs, final BlameResult result, ExecutorService executorService, final InputFile inputFile) {
     return executorService.submit(new Callable<Void>() {
+      @Override
       public Void call() {
         blame(fs, inputFile, result);
         return null;

plugins/sonar-svn-plugin/src/main/java/org/sonar/plugins/scm/svn/SvnPlugin.java

@@ -27,6 +27,7 @@ import java.util.List;
 
 public final class SvnPlugin extends SonarPlugin {
 
+  @Override
   public List getExtensions() {
     List result = new ArrayList();
     result.addAll(ImmutableList.of(

server/sonar-server/src/main/java/org/sonar/server/component/ComponentsFinderSort.java

@@ -70,6 +70,7 @@ class ComponentsFinderSort {
     @Override
     Function sortFieldFunction() {
       return new Function<Component, String>() {
+        @Override
         public String apply(Component component) {
           return sortField(component);
         }

server/sonar-server/src/main/java/org/sonar/server/component/db/ComponentDao.java

@@ -110,6 +110,7 @@ public class ComponentDao extends BaseDao<ComponentMapper, ComponentDto, String>
     return components;
   }
 
+  @Override
   protected List<ComponentDto> doGetByKeys(DbSession session, Collection<String> keys) {
     return mapper(session).findByKeys(keys);
   }

server/sonar-server/src/main/java/org/sonar/server/db/BaseDao.java

@@ -152,11 +152,13 @@ public abstract class BaseDao<MAPPER, DTO extends Dto<KEY>, KEY extends Serializ
     return session.getMapper(mapperClass);
   }
 
+  @Override
   @CheckForNull
   public DTO getNullableByKey(DbSession session, KEY key) {
     return doGetNullableByKey(session, key);
   }
 
+  @Override
   public DTO getByKey(DbSession session, KEY key) {
     DTO value = doGetNullableByKey(session, key);
     if (value == null) {

server/sonar-server/src/main/java/org/sonar/server/debt/DebtModelService.java

@@ -45,10 +45,12 @@ public class DebtModelService implements DebtModel {
     this.debtModelBackup = debtModelBackup;
   }
 
+  @Override
   public List<DebtCharacteristic> characteristics() {
     return debtModelLookup.rootCharacteristics();
   }
 
+  @Override
   public List<DebtCharacteristic> allCharacteristics() {
     return debtModelLookup.allCharacteristics();
   }
@@ -58,6 +60,7 @@ public class DebtModelService implements DebtModel {
     return debtModelLookup.characteristicById(id);
   }
 
+  @Override
   @CheckForNull
   public DebtCharacteristic characteristicByKey(String key) {
     return debtModelLookup.characteristicByKey(key);

server/sonar-server/src/main/java/org/sonar/server/debt/DebtModelXMLExporter.java

@@ -239,6 +239,7 @@ public class DebtModelXMLExporter implements ServerComponent {
 
     private List<DebtCharacteristic> sortByOrder(List<DebtCharacteristic> characteristics) {
       Collections.sort(characteristics, new Ordering<DebtCharacteristic>() {
+        @Override
         public int compare(@Nullable DebtCharacteristic left, @Nullable DebtCharacteristic right) {
           if (left == null || left.order() == null || right == null || right.order() == null) {
             return -1;
@@ -251,6 +252,7 @@ public class DebtModelXMLExporter implements ServerComponent {
 
     private List<DebtCharacteristic> sortByName(List<DebtCharacteristic> characteristics) {
       Collections.sort(characteristics, new Ordering<DebtCharacteristic>() {
+        @Override
         public int compare(@Nullable DebtCharacteristic left, @Nullable DebtCharacteristic right) {
           if (left == null || right == null) {
             return -1;

server/sonar-server/src/main/java/org/sonar/server/design/FileDesignWidget.java

@@ -28,10 +28,12 @@ import org.sonar.api.web.WidgetCategory;
 @WidgetCategory({"Design"})
 public final class FileDesignWidget extends AbstractRubyTemplate implements RubyRailsWidget {
 
+  @Override
   public String getId() {
     return "file_design";
   }
 
+  @Override
   public String getTitle() {
     return "File design";
   }

server/sonar-server/src/main/java/org/sonar/server/design/PackageDesignWidget.java

@@ -28,10 +28,12 @@ import org.sonar.api.web.WidgetCategory;
 @WidgetCategory({"Design"})
 public final class PackageDesignWidget extends AbstractRubyTemplate implements RubyRailsWidget {
 
+  @Override
   public String getId() {
     return "package_design";
   }
 
+  @Override
   public String getTitle() {
     return "File design";
   }

server/sonar-server/src/main/java/org/sonar/server/issue/IssuesFinderSort.java

@@ -87,6 +87,7 @@ class IssuesFinderSort {
     @Override
     Function sortFieldFunction() {
       return new Function<IssueDto, String>() {
+        @Override
         public String apply(IssueDto issueDto) {
           return sortField(issueDto);
         }
@@ -123,6 +124,7 @@ class IssuesFinderSort {
     @Override
     Function sortFieldFunction() {
       return new Function<IssueDto, Integer>() {
+        @Override
         public Integer apply(IssueDto issueDto) {
           return Severity.ALL.indexOf(issueDto.getSeverity());
         }
@@ -143,6 +145,7 @@ class IssuesFinderSort {
     @Override
     Function sortFieldFunction() {
       return new Function<IssueDto, Date>() {
+        @Override
         public Date apply(IssueDto issueDto) {
           return sortField(issueDto);
         }

server/sonar-server/src/main/java/org/sonar/server/issue/ServerIssueStorage.java

@@ -42,6 +42,7 @@ public class ServerIssueStorage extends IssueStorage implements ServerComponent
     this.dbClient = dbClient;
   }
 
+  @Override
   protected void doInsert(DbSession session, Date now, DefaultIssue issue) {
     long componentId = componentId(session, issue);
     long projectId = projectId(session, issue);
@@ -51,6 +52,7 @@ public class ServerIssueStorage extends IssueStorage implements ServerComponent
     dbClient.issueDao().insert(session, dto);
   }
 
+  @Override
   protected void doUpdate(DbSession session, Date now, DefaultIssue issue) {
     IssueDto dto = IssueDto.toDtoForUpdate(issue, projectId(session, issue), now);
 

server/sonar-server/src/main/java/org/sonar/server/issue/db/IssueDao.java

@@ -52,6 +52,7 @@ public class IssueDao extends BaseDao<IssueMapper, IssueDto, String> implements
     return mapper(session).selectByKey(key);
   }
 
+  @Override
   protected List<IssueDto> doGetByKeys(DbSession session, Collection<String> keys) {
     return mapper(session).selectByKeys(keys);
   }

server/sonar-server/src/main/java/org/sonar/server/measure/MeasureFilterSql.java

@@ -244,20 +244,24 @@ class MeasureFilterSql {
   }
 
   static class TextSortRowProcessor extends RowProcessor {
+    @Override
     MeasureFilterRow fetch(ResultSet rs) throws SQLException {
       MeasureFilterRow row = new MeasureFilterRow(rs.getLong(1), rs.getLong(2), rs.getLong(3));
       row.setSortText(rs.getString(4));
       return row;
     }
 
+    @Override
     Function sortFieldFunction() {
       return new Function<MeasureFilterRow, String>() {
+        @Override
         public String apply(MeasureFilterRow row) {
           return row.getSortText();
         }
       };
     }
 
+    @Override
     Ordering sortFieldOrdering(boolean ascending) {
       Ordering<String> ordering = Ordering.from(String.CASE_INSENSITIVE_ORDER);
       if (!ascending) {
@@ -268,8 +272,10 @@ class MeasureFilterSql {
   }
 
   static class AlertSortRowProcessor extends TextSortRowProcessor {
+    @Override
     Function sortFieldFunction() {
       return new Function<MeasureFilterRow, Integer>() {
+        @Override
         public Integer apply(MeasureFilterRow row) {
           return ImmutableList.of("OK", "WARN", "ERROR").indexOf(row.getSortText());
         }
@@ -287,6 +293,7 @@ class MeasureFilterSql {
   }
 
   static class NumericSortRowProcessor extends RowProcessor {
+    @Override
     MeasureFilterRow fetch(ResultSet rs) throws SQLException {
       MeasureFilterRow row = new MeasureFilterRow(rs.getLong(1), rs.getLong(2), rs.getLong(3));
       double value = rs.getDouble(4);
@@ -296,34 +303,41 @@ class MeasureFilterSql {
       return row;
     }
 
+    @Override
     Function sortFieldFunction() {
       return new Function<MeasureFilterRow, Double>() {
+        @Override
         public Double apply(MeasureFilterRow row) {
           return row.getSortDouble();
         }
       };
     }
 
+    @Override
     Ordering sortFieldOrdering(boolean ascending) {
       return ascending ? Ordering.natural().nullsLast() : Ordering.natural().reverse().nullsLast();
     }
   }
 
   static class DateSortRowProcessor extends RowProcessor {
+    @Override
     MeasureFilterRow fetch(ResultSet rs) throws SQLException {
       MeasureFilterRow row = new MeasureFilterRow(rs.getLong(1), rs.getLong(2), rs.getLong(3));
       row.setSortDate(rs.getTimestamp(4));
       return row;
     }
 
+    @Override
     Function sortFieldFunction() {
       return new Function<MeasureFilterRow, Timestamp>() {
+        @Override
         public Timestamp apply(MeasureFilterRow row) {
           return row.getSortDate();
         }
       };
     }
 
+    @Override
     Ordering sortFieldOrdering(boolean ascending) {
       return newObjectOrdering(ascending);
     }
@@ -332,6 +346,7 @@ class MeasureFilterSql {
   private static Ordering newObjectOrdering(boolean ascending) {
     if (ascending) {
       return Ordering.from(new Comparator<Comparable>() {
+        @Override
         public int compare(@Nullable Comparable left, @Nullable Comparable right) {
           if (left == null) {
             return 1;
@@ -345,6 +360,7 @@ class MeasureFilterSql {
       });
     }
     return Ordering.from(new Comparator<Comparable>() {
+      @Override
       public int compare(@Nullable Comparable left, @Nullable Comparable right) {
         if (left == null) {
           return 1;

server/sonar-server/src/main/java/org/sonar/server/measure/ws/ManualMeasuresWs.java

@@ -25,6 +25,7 @@ import org.sonar.api.server.ws.WebService;
 
 public class ManualMeasuresWs implements WebService {
 
+  @Override
   public void define(Context context) {
     NewController controller = context.createController("api/manual_measures");
     controller.setDescription("Manual measures management");

server/sonar-server/src/main/java/org/sonar/server/notifications/NotificationService.java

@@ -100,6 +100,7 @@ public class NotificationService implements ServerComponent {
   public void start() {
     executorService = Executors.newSingleThreadScheduledExecutor();
     executorService.scheduleWithFixedDelay(new Runnable() {
+      @Override
       public void run() {
         try {
           processQueue();
@@ -167,10 +168,12 @@ public class NotificationService implements ServerComponent {
     final SetMultimap<String, NotificationChannel> recipients = HashMultimap.create();
     for (NotificationDispatcher dispatcher : dispatchers) {
       NotificationDispatcher.Context context = new NotificationDispatcher.Context() {
+        @Override
         public void addUser(String username) {
           // This method is not used anymore
         }
 
+        @Override
         public void addUser(String userLogin, NotificationChannel notificationChannel) {
           if (userLogin != null) {
             recipients.put(userLogin, notificationChannel);

server/sonar-server/src/main/java/org/sonar/server/platform/ClassLoaderUtils.java

@@ -71,6 +71,7 @@ class ClassLoaderUtils {
    */
   static Collection<String> listFiles(ClassLoader classLoader, String rootPath) {
     return listResources(classLoader, rootPath, new Predicate<String>() {
+      @Override
       public boolean apply(@Nullable String path) {
         return !StringUtils.endsWith(path, "/");
       }

server/sonar-server/src/main/java/org/sonar/server/platform/PlatformServletContextListener.java

@@ -30,6 +30,7 @@ import java.util.Properties;
 
 public final class PlatformServletContextListener implements ServletContextListener {
 
+  @Override
   public void contextInitialized(ServletContextEvent event) {
     try {
       Properties props = new Properties();
@@ -59,6 +60,7 @@ public final class PlatformServletContextListener implements ServletContextListe
     }
   }
 
+  @Override
   public void contextDestroyed(ServletContextEvent event) {
     Platform.getInstance().doStop();
   }

server/sonar-server/src/main/java/org/sonar/server/platform/RailsAppsDeployer.java

@@ -90,6 +90,7 @@ public class RailsAppsDeployer implements Startable {
       LOG.info("Deploy app: " + pluginKey);
       File appDir = new File(appsDir, pluginKey);
       ClassLoaderUtils.copyResources(appClassLoader, pathToRubyInitFile(pluginKey), appDir, new Function<String, String>() {
+        @Override
         public String apply(@Nullable String relativePath) {
           // Relocate the deployed files :
           // relativePath format is: org/sonar/ror/sqale/app/controllers/foo_controller.rb

server/sonar-server/src/main/java/org/sonar/server/plugins/ServerPluginJarInstaller.java

@@ -54,6 +54,7 @@ public class ServerPluginJarInstaller extends PluginJarInstaller {
   }
 
   private static final class LibFilter implements ZipUtils.ZipEntryFilter {
+    @Override
     public boolean accept(ZipEntry entry) {
       return entry.getName().startsWith("META-INF/lib");
     }

server/sonar-server/src/main/java/org/sonar/server/qualityprofile/QProfileActivity.java

@@ -75,6 +75,7 @@ public class QProfileActivity extends ActivityDoc implements Activity {
     return RuleKey.parse((String) getField("ruleKey"));
   }
 
+  @Override
   @CheckForNull
   public String login() {
     return getNullableField(ActivityNormalizer.LogFields.LOGIN.field());

server/sonar-server/src/main/java/org/sonar/server/qualityprofile/RegisterQualityProfiles.java

@@ -184,6 +184,7 @@ public class RegisterQualityProfiles implements ServerComponent {
 
   private static Map<String, Collection<RulesProfile>> profilesByName(List<RulesProfile> profiles) {
     return Multimaps.index(profiles, new Function<RulesProfile, String>() {
+      @Override
       public String apply(@Nullable RulesProfile profile) {
         return profile != null ? profile.getName() : null;
       }

server/sonar-server/src/main/java/org/sonar/server/rule/DefaultRuleFinder.java

@@ -50,6 +50,7 @@ public class DefaultRuleFinder implements RuleFinder {
     this.index = indexes.get(RuleIndex.class);
   }
 
+  @Override
   @CheckForNull
   public org.sonar.api.rules.Rule findById(int ruleId) {
     Rule rule = index.getById(ruleId);
@@ -81,6 +82,7 @@ public class DefaultRuleFinder implements RuleFinder {
     return rules;
   }
 
+  @Override
   @CheckForNull
   public org.sonar.api.rules.Rule findByKey(RuleKey key) {
     Rule rule = index.getNullableByKey(key);
@@ -91,11 +93,13 @@ public class DefaultRuleFinder implements RuleFinder {
     }
   }
 
+  @Override
   @CheckForNull
   public org.sonar.api.rules.Rule findByKey(String repositoryKey, String key) {
     return findByKey(RuleKey.of(repositoryKey, key));
   }
 
+  @Override
   public final org.sonar.api.rules.Rule find(org.sonar.api.rules.RuleQuery query) {
     Result<Rule> result = index.search(toQuery(query), new QueryContext());
     if (!result.getHits().isEmpty()) {
@@ -105,6 +109,7 @@ public class DefaultRuleFinder implements RuleFinder {
     }
   }
 
+  @Override
   public final Collection<org.sonar.api.rules.Rule> findAll(org.sonar.api.rules.RuleQuery query) {
     List<org.sonar.api.rules.Rule> rules = newArrayList();
     for (Rule rule : index.search(toQuery(query), new QueryContext()).getHits()) {

server/sonar-server/src/main/java/org/sonar/server/rule/index/RuleIndex.java

@@ -76,6 +76,7 @@ public class RuleIndex extends BaseIndex<Rule, RuleDto, RuleKey> {
     super(IndexDefinition.RULE, normalizer, client);
   }
 
+  @Override
   protected String getKeyValue(RuleKey key) {
     return key.toString();
   }

server/sonar-server/src/main/java/org/sonar/server/search/BaseIndex.java

@@ -86,6 +86,7 @@ public abstract class BaseIndex<DOMAIN, DTO extends Dto<KEY>, KEY extends Serial
     this.indexDefinition = indexDefinition;
   }
 
+  @Override
   public BaseNormalizer<DTO, KEY> getNormalizer() {
     return normalizer;
   }
@@ -118,6 +119,7 @@ public abstract class BaseIndex<DOMAIN, DTO extends Dto<KEY>, KEY extends Serial
   }
 
   // Scrolling within the index
+  @Override
   public Iterator<DOMAIN> scroll(final String scrollId) {
     return new Iterator<DOMAIN>() {
 
@@ -185,6 +187,7 @@ public abstract class BaseIndex<DOMAIN, DTO extends Dto<KEY>, KEY extends Serial
     }
   }
 
+  @Override
   public IndexStat getIndexStat() {
     IndexStat stat = new IndexStat();
 

server/sonar-server/src/main/java/org/sonar/server/text/RuleMacro.java

@@ -31,10 +31,12 @@ class RuleMacro implements Macro {
   /**
    * First parameter is the repository, second one is the rule key. Exemple : {rule:squid:ArchitecturalConstraint}
    */
+  @Override
   public String getRegex() {
     return "\\{rule:([a-zA-Z0-9._-]++):([a-zA-Z0-9._-]++)\\}";
   }
 
+  @Override
   public String getReplacement() {
     return "<a href='" + contextPath + "/coding_rules#rule_key=$1:$2'>$2</a>";
   }

server/sonar-server/src/main/java/org/sonar/server/ui/ViewProxy.java

@@ -334,6 +334,7 @@ public class ViewProxy<V extends View> implements Comparable<ViewProxy> {
 
   }
 
+  @Override
   public int compareTo(ViewProxy other) {
     return new CompareToBuilder()
       .append(getTitle(), other.getTitle())

server/sonar-server/src/main/java/org/sonar/server/ws/ListingWs.java

@@ -124,6 +124,7 @@ public class ListingWs implements WebService {
 
     // sort controllers by path
     Ordering<Controller> ordering = Ordering.natural().onResultOf(new Function<Controller, String>() {
+      @Override
       public String apply(Controller controller) {
         return controller.path();
       }
@@ -144,6 +145,7 @@ public class ListingWs implements WebService {
       writer.prop("description", controller.description());
       // sort actions by key
       Ordering<Action> ordering = Ordering.natural().onResultOf(new Function<Action, String>() {
+        @Override
         public String apply(Action action) {
           return action.key();
         }
@@ -169,6 +171,7 @@ public class ListingWs implements WebService {
       if (!action.params().isEmpty()) {
         // sort parameters by key
         Ordering<Param> ordering = Ordering.natural().onResultOf(new Function<Param, String>() {
+          @Override
           public String apply(@Nullable Param param) {
             return param != null ? param.key() : null;
           }

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultActionPlan.java

@@ -40,23 +40,28 @@ public class DefaultActionPlan implements ActionPlan {
   /**
    * Unique key
    */
+  @Override
   public String key() {
     return JsonUtils.getString(json, "key");
   }
 
+  @Override
   public String project() {
     return JsonUtils.getString(json, "project");
   }
 
+  @Override
   public String name() {
     return JsonUtils.getString(json, "name");
   }
 
+  @Override
   @CheckForNull
   public String description() {
     return JsonUtils.getString(json, "desc");
   }
 
+  @Override
   public String status() {
     return JsonUtils.getString(json, "status");
   }
@@ -64,28 +69,34 @@ public class DefaultActionPlan implements ActionPlan {
   /**
    * Login of the user who created the action plan.
    */
+  @Override
   public String userLogin() {
     return JsonUtils.getString(json, "userLogin");
   }
 
+  @Override
   @CheckForNull
   public Date deadLine() {
     return JsonUtils.getDateTime(json, "deadLine");
   }
 
+  @Override
   public Date createdAt() {
     return JsonUtils.getDateTime(json, "createdAt");
   }
 
+  @Override
   public Date updatedAt() {
     return JsonUtils.getDateTime(json, "updatedAt");
   }
 
+  @Override
   @CheckForNull
   public Integer totalIssues() {
     return JsonUtils.getInteger(json, "totalIssues");
   }
 
+  @Override
   @CheckForNull
   public Integer unresolvedIssues() {
     return JsonUtils.getInteger(json, "unresolvedIssues");

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultBulkChange.java

@@ -36,15 +36,18 @@ public class DefaultBulkChange implements BulkChange {
   private Integer totalIssuesNotChanged;
   private final List<String> issuesNotChangedKeys = new ArrayList<String>();
 
+  @Override
   public List<String> issuesNotChangedKeys() {
     return issuesNotChangedKeys;
   }
 
+  @Override
   @CheckForNull
   public Integer totalIssuesChanged() {
     return totalIssuesChanged;
   }
 
+  @Override
   @CheckForNull
   public Integer totalIssuesNotChanged() {
     return totalIssuesNotChanged;

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssue.java

@@ -41,45 +41,55 @@ public class DefaultIssue implements Issue {
   /**
    * Unique key
    */
+  @Override
   public String key() {
     return JsonUtils.getString(json, "key");
   }
 
+  @Override
   public Long componentId() {
     return JsonUtils.getLong(json, "componentId");
   }
 
+  @Override
   public String componentKey() {
     return JsonUtils.getString(json, "component");
   }
 
+  @Override
   public String projectKey() {
     return JsonUtils.getString(json, "project");
   }
 
+  @Override
   public String ruleKey() {
     return JsonUtils.getString(json, "rule");
   }
 
+  @Override
   public String severity() {
     return JsonUtils.getString(json, "severity");
   }
 
+  @Override
   @CheckForNull
   public String message() {
     return JsonUtils.getString(json, "message");
   }
 
+  @Override
   @CheckForNull
   public Integer line() {
     return JsonUtils.getInteger(json, "line");
   }
 
+  @Override
   @CheckForNull
   public String debt() {
     return JsonUtils.getString(json, "debt");
   }
 
+  @Override
   public String status() {
     return JsonUtils.getString(json, "status");
   }
@@ -87,11 +97,13 @@ public class DefaultIssue implements Issue {
   /**
    * The resolution type. Null if the issue is not resolved.
    */
+  @Override
   @CheckForNull
   public String resolution() {
     return JsonUtils.getString(json, "resolution");
   }
 
+  @Override
   @CheckForNull
   public String reporter() {
     return JsonUtils.getString(json, "reporter");
@@ -100,6 +112,7 @@ public class DefaultIssue implements Issue {
   /**
    * Login of assignee. Null if issue is not assigned.
    */
+  @Override
   @CheckForNull
   public String assignee() {
     return JsonUtils.getString(json, "assignee");
@@ -108,34 +121,41 @@ public class DefaultIssue implements Issue {
   /**
    * SCM account
    */
+  @Override
   @CheckForNull
   public String author() {
     return JsonUtils.getString(json, "author");
   }
 
+  @Override
   @CheckForNull
   public String actionPlan() {
     return JsonUtils.getString(json, "actionPlan");
   }
 
+  @Override
   public Date creationDate() {
     return JsonUtils.getDateTime(json, "creationDate");
   }
 
+  @Override
   public Date updateDate() {
     return JsonUtils.getDateTime(json, "updateDate");
   }
 
+  @Override
   @CheckForNull
   public Date closeDate() {
     return JsonUtils.getDateTime(json, "closeDate");
   }
 
+  @Override
   @CheckForNull
   public String attribute(String key) {
     return attributes().get(key);
   }
 
+  @Override
   public Map<String, String> attributes() {
     Map<String, String> attr = (Map<String, String>) json.get("attr");
     if (attr == null) {
@@ -147,6 +167,7 @@ public class DefaultIssue implements Issue {
   /**
    * Non-null list of comments
    */
+  @Override
   public List<IssueComment> comments() {
     List<IssueComment> comments = new ArrayList<IssueComment>();
     List<Map> jsonComments = (List<Map>) json.get("comments");

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssueChange.java

@@ -39,14 +39,17 @@ public class DefaultIssueChange implements IssueChange {
     this.json = json;
   }
 
+  @Override
   public String user() {
     return JsonUtils.getString(json, "user");
   }
 
+  @Override
   public Date creationDate() {
     return JsonUtils.getDateTime(json, "creationDate");
   }
 
+  @Override
   public List<IssueChangeDiff> diffs() {
     List<IssueChangeDiff> diffs = new ArrayList<IssueChangeDiff>();
     List<Map> jsonDiffs = (List<Map>) json.get("diffs");

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssueChangeDiff.java

@@ -37,16 +37,19 @@ public class DefaultIssueChangeDiff implements IssueChangeDiff {
     this.json = json;
   }
 
+  @Override
   public String key() {
     return JsonUtils.getString(json, "key");
   }
 
+  @Override
   @CheckForNull
   public Object newValue() {
     return parseValue("newValue");
 
   }
 
+  @Override
   @CheckForNull
   public Object oldValue() {
     return parseValue("oldValue");

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssueClient.java

@@ -45,6 +45,7 @@ public class DefaultIssueClient implements IssueClient {
     this.parser = new IssueJsonParser();
   }
 
+  @Override
   public Issues find(IssueQuery query) {
     String json = requestFactory.get(SEARCH_URL, query.urlParams());
     return parser.parseIssues(json);

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssueComment.java

@@ -35,18 +35,22 @@ public class DefaultIssueComment implements IssueComment {
     this.json = json;
   }
 
+  @Override
   public String key() {
     return JsonUtils.getString(json, "key");
   }
 
+  @Override
   public String htmlText() {
     return JsonUtils.getString(json, "htmlText");
   }
 
+  @Override
   public String login() {
     return JsonUtils.getString(json, "login");
   }
 
+  @Override
   public Date createdAt() {
     return JsonUtils.getDateTime(json, "createdAt");
   }

server/sonar-ws-client/src/main/java/org/sonar/wsclient/issue/internal/DefaultIssues.java

@@ -47,72 +47,88 @@ public class DefaultIssues implements Issues {
   private Paging paging;
   private Boolean maxResultsReached;
 
+  @Override
   public List<Issue> list() {
     return list;
   }
 
+  @Override
   public int size() {
     return list.size();
   }
 
+  @Override
   public Collection<Rule> rules() {
     return rulesByKey.values();
   }
 
+  @Override
   public Rule rule(Issue issue) {
     return rulesByKey.get(issue.ruleKey());
   }
 
+  @Override
   public Collection<User> users() {
     return usersByKey.values();
   }
 
+  @Override
   @CheckForNull
   public User user(String login) {
     return usersByKey.get(login);
   }
 
+  @Override
   public Collection<Component> components() {
     return componentsByKey.values();
   }
 
+  @Override
   @CheckForNull
   public Component component(Issue issue) {
     return componentsByKey.get(issue.componentKey());
   }
 
+  @Override
   @CheckForNull
   public Component componentById(long id) {
     return componentsById.get(id);
   }
 
+  @Override
   @CheckForNull
   public Component componentByKey(String key) {
     return componentsByKey.get(key);
   }
 
+  @Override
   public Collection<Component> projects() {
     return projectsByKey.values();
   }
 
+  @Override
   @CheckForNull
   public Component project(Issue issue) {
     return projectsByKey.get(issue.projectKey());
   }
 
+  @Override
   public Collection<ActionPlan> actionPlans() {
     return actionPlansByKey.values();
   }
 
+  @Override
   @CheckForNull
   public ActionPlan actionPlans(Issue issue) {
     return actionPlansByKey.get(issue.actionPlan());
   }
 
+  @Override
   public Paging paging() {
     return paging;
   }
 
+  @Override
   @Nullable
   public Boolean maxResultsReached() {
     return maxResultsReached;

server/sonar-ws-client/src/main/java/org/sonar/wsclient/unmarshallers/AbstractUnmarshaller.java

@@ -27,6 +27,7 @@ import java.util.List;
 
 public abstract class AbstractUnmarshaller<M extends Model> implements Unmarshaller<M> {
 
+  @Override
   public final M toModel(String json) {
     WSUtils utils = WSUtils.getINSTANCE();
     M result = null;
@@ -45,6 +46,7 @@ public abstract class AbstractUnmarshaller<M extends Model> implements Unmarshal
 
   }
 
+  @Override
   public final List<M> toModels(String json) {
     WSUtils utils = WSUtils.getINSTANCE();
     List<M> result = new ArrayList<M>();

server/sonar-ws-client/src/main/java/org/sonar/wsclient/unmarshallers/AuthenticationUnmarshaller.java

@@ -26,6 +26,7 @@ import java.util.List;
 
 public class AuthenticationUnmarshaller implements Unmarshaller<Authentication> {
 
+  @Override
   public Authentication toModel(String json) {
     WSUtils utils = WSUtils.getINSTANCE();
     Object map = utils.parse(json);
@@ -34,6 +35,7 @@ public class AuthenticationUnmarshaller implements Unmarshaller<Authentication>
     return new Authentication().setValid(validJson != null ? validJson : false);
   }
 
+  @Override
   public List<Authentication> toModels(String json) {
     throw new UnsupportedOperationException();
   }

server/sonar-ws-client/src/main/java/org/sonar/wsclient/unmarshallers/ServerSetupUnmarshaller.java

@@ -28,6 +28,7 @@ import java.util.List;
  * @since 2.9
  */
 public class ServerSetupUnmarshaller implements Unmarshaller<ServerSetup> {
+  @Override
   public ServerSetup toModel(String json) {
     WSUtils utils = WSUtils.getINSTANCE();
     Object map = utils.parse(json);
@@ -36,6 +37,7 @@ public class ServerSetupUnmarshaller implements Unmarshaller<ServerSetup> {
       .setMessage(utils.getString(map, "msg"));
   }
 
+  @Override
   public List<ServerSetup> toModels(String json) {
     throw new UnsupportedOperationException();
   }

server/sonar-ws-client/src/main/java/org/sonar/wsclient/unmarshallers/ServerUnmarshaller.java

@@ -28,6 +28,7 @@ import java.util.List;
  * @author Evgeny Mandrikov
  */
 public class ServerUnmarshaller implements Unmarshaller<Server> {
+  @Override
   public Server toModel(String json) {
     WSUtils utils = WSUtils.getINSTANCE();
     Object map = utils.parse(json);
@@ -42,6 +43,7 @@ public class ServerUnmarshaller implements Unmarshaller<Server> {
     return server;
   }
 
+  @Override
   public List<Server> toModels(String json) {
     throw new UnsupportedOperationException();
   }

sonar-batch/src/main/java/org/sonar/batch/DefaultDecoratorContext.java

@@ -86,10 +86,12 @@ public class DefaultDecoratorContext implements DecoratorContext {
     return this;
   }
 
+  @Override
   public Project getProject() {
     return sonarIndex.getProject();
   }
 
+  @Override
   public List<DecoratorContext> getChildren() {
     checkReadOnly("getModules");
     return childrenContexts;
@@ -101,6 +103,7 @@ public class DefaultDecoratorContext implements DecoratorContext {
     }
   }
 
+  @Override
   public <M> M getMeasures(MeasuresFilter<M> filter) {
     Collection<Measure> unfiltered;
     if (filter instanceof MeasuresFilters.MetricFilter) {
@@ -112,10 +115,12 @@ public class DefaultDecoratorContext implements DecoratorContext {
     return filter.filter(unfiltered);
   }
 
+  @Override
   public Measure getMeasure(Metric metric) {
     return getMeasures(MeasuresFilters.metric(metric));
   }
 
+  @Override
   public Collection<Measure> getChildrenMeasures(MeasuresFilter filter) {
     List<Measure> result = Lists.newArrayList();
     for (DecoratorContext childContext : childrenContexts) {
@@ -131,14 +136,17 @@ public class DefaultDecoratorContext implements DecoratorContext {
     return result;
   }
 
+  @Override
   public Collection<Measure> getChildrenMeasures(Metric metric) {
     return getChildrenMeasures(MeasuresFilters.metric(metric));
   }
 
+  @Override
   public Resource getResource() {
     return resource;
   }
 
+  @Override
   public DecoratorContext saveMeasure(Measure measure) {
     checkReadOnly(SAVE_MEASURE_METHOD);
     Metric metric = metricFinder.findByKey(measure.getMetricKey());
@@ -167,6 +175,7 @@ public class DefaultDecoratorContext implements DecoratorContext {
     return this;
   }
 
+  @Override
   public DecoratorContext saveMeasure(Metric metric, Double value) {
     checkReadOnly(SAVE_MEASURE_METHOD);
     saveMeasure(new Measure(metric, value));
@@ -176,6 +185,7 @@ public class DefaultDecoratorContext implements DecoratorContext {
   /**
   * {@inheritDoc}
   */
+  @Override
   public List<Violation> getViolations(ViolationQuery violationQuery) {
     return sonarIndex.getViolations(violationQuery);
   }
@@ -183,39 +193,48 @@ public class DefaultDecoratorContext implements DecoratorContext {
   /**
   * {@inheritDoc}
   */
+  @Override
   public List<Violation> getViolations() {
     return sonarIndex.getViolations(resource);
   }
 
+  @Override
   public Dependency saveDependency(Dependency dependency) {
     checkReadOnly("addDependency");
     return sonarIndex.addDependency(dependency);
   }
 
+  @Override
   public Set<Dependency> getDependencies() {
     return sonarIndex.getDependencies();
   }
 
+  @Override
   public Collection<Dependency> getIncomingDependencies() {
     return sonarIndex.getIncomingEdges(resource);
   }
 
+  @Override
   public Collection<Dependency> getOutgoingDependencies() {
     return sonarIndex.getOutgoingEdges(resource);
   }
 
+  @Override
   public List<Event> getEvents() {
     return sonarIndex.getEvents(resource);
   }
 
+  @Override
   public Event createEvent(String name, String description, String category, Date date) {
     return sonarIndex.addEvent(resource, name, description, category, date);
   }
 
+  @Override
   public void deleteEvent(Event event) {
     sonarIndex.deleteEvent(event);
   }
 
+  @Override
   public DefaultDecoratorContext saveViolation(Violation violation, boolean force) {
     if (violation.getResource() == null) {
       violation.setResource(resource);
@@ -224,6 +243,7 @@ public class DefaultDecoratorContext implements DecoratorContext {
     return this;
   }
 
+  @Override
   public DefaultDecoratorContext saveViolation(Violation violation) {
     return saveViolation(violation, false);
   }

sonar-batch/src/main/java/org/sonar/batch/DefaultFileLinesContext.java

@@ -52,6 +52,7 @@ public class DefaultFileLinesContext implements FileLinesContext {
     this.resource = resource;
   }
 
+  @Override
   public void setIntValue(String metricKey, int line, int value) {
     Preconditions.checkNotNull(metricKey);
     Preconditions.checkArgument(line > 0);
@@ -59,6 +60,7 @@ public class DefaultFileLinesContext implements FileLinesContext {
     setValue(metricKey, line, value);
   }
 
+  @Override
   public Integer getIntValue(String metricKey, int line) {
     Preconditions.checkNotNull(metricKey);
     Preconditions.checkArgument(line > 0);
@@ -72,6 +74,7 @@ public class DefaultFileLinesContext implements FileLinesContext {
     return (Integer) lines.get(line);
   }
 
+  @Override
   public void setStringValue(String metricKey, int line, String value) {
     Preconditions.checkNotNull(metricKey);
     Preconditions.checkArgument(line > 0);
@@ -80,6 +83,7 @@ public class DefaultFileLinesContext implements FileLinesContext {
     setValue(metricKey, line, value);
   }
 
+  @Override
   public String getStringValue(String metricKey, int line) {
     Preconditions.checkNotNull(metricKey);
     Preconditions.checkArgument(line > 0);
@@ -106,6 +110,7 @@ public class DefaultFileLinesContext implements FileLinesContext {
     getOrCreateLines(metricKey).put(line, value);
   }
 
+  @Override
   public void save() {
     for (Map.Entry<String, Map<Integer, Object>> entry : map.entrySet()) {
       String metricKey = entry.getKey();

sonar-batch/src/main/java/org/sonar/batch/DefaultProjectTree.java

@@ -77,6 +77,7 @@ public class DefaultProjectTree implements ProjectTree {
     return projects;
   }
 
+  @Override
   public Project getRootProject() {
     for (Project project : projects) {
       if (project.getParent() == null) {
@@ -86,6 +87,7 @@ public class DefaultProjectTree implements ProjectTree {
     throw new IllegalStateException("Can not find the root project from the list of Maven modules");
   }
 
+  @Override
   public ProjectDefinition getProjectDefinition(Project project) {
     for (Map.Entry<ProjectDefinition, Project> entry : projectsByDef.entrySet()) {
       if (ObjectUtils.equals(entry.getValue(), project)) {

sonar-batch/src/main/java/org/sonar/batch/DefaultSensorContext.java

@@ -63,6 +63,7 @@ public class DefaultSensorContext implements SensorContext {
     return project;
   }
 
+  @Override
   public boolean index(Resource resource) {
     // SONAR-5006
     if (indexedByCore(resource)) {
@@ -176,6 +177,7 @@ public class DefaultSensorContext implements SensorContext {
     }
   }
 
+  @Override
   public void saveViolation(Violation violation, boolean force) {
     if (violation.getResource() == null) {
       violation.setResource(resourceOrProject(violation.getResource()));
@@ -183,10 +185,12 @@ public class DefaultSensorContext implements SensorContext {
     index.addViolation(violation, force);
   }
 
+  @Override
   public void saveViolation(Violation violation) {
     saveViolation(violation, false);
   }
 
+  @Override
   public void saveViolations(Collection<Violation> violations) {
     if (violations != null) {
       for (Violation violation : violations) {
@@ -195,42 +199,52 @@ public class DefaultSensorContext implements SensorContext {
     }
   }
 
+  @Override
   public Dependency saveDependency(Dependency dependency) {
     return index.addDependency(dependency);
   }
 
+  @Override
   public Set<Dependency> getDependencies() {
     return index.getDependencies();
   }
 
+  @Override
   public Collection<Dependency> getIncomingDependencies(Resource to) {
     return index.getIncomingEdges(resourceOrProject(to));
   }
 
+  @Override
   public Collection<Dependency> getOutgoingDependencies(Resource from) {
     return index.getOutgoingEdges(resourceOrProject(from));
   }
 
+  @Override
   public void saveSource(Resource reference, String source) {
     // useless since 4.2.
   }
 
+  @Override
   public void saveLink(ProjectLink link) {
     index.addLink(link);
   }
 
+  @Override
   public void deleteLink(String key) {
     index.deleteLink(key);
   }
 
+  @Override
   public List<Event> getEvents(Resource resource) {
     return index.getEvents(resource);
   }
 
+  @Override
   public Event createEvent(Resource resource, String name, String description, String category, Date date) {
     return index.addEvent(resource, name, description, category, date);
   }
 
+  @Override
   public void deleteEvent(Event event) {
     index.deleteEvent(event);
   }

sonar-batch/src/main/java/org/sonar/batch/DefaultTimeMachine.java

@@ -59,6 +59,7 @@ public class DefaultTimeMachine implements TimeMachine {
     this.techDebtModel = techDebtModel;
   }
 
+  @Override
   public List<Measure> getMeasures(TimeMachineQuery query) {
     Map<Integer, Metric> metricById = getMetricsById(query);
 
@@ -76,6 +77,7 @@ public class DefaultTimeMachine implements TimeMachine {
     return result;
   }
 
+  @Override
   public List<Object[]> getMeasuresFields(TimeMachineQuery query) {
     Map<Integer, Metric> metricById = getMetricsById(query);
     List<Object[]> rows = execute(query, false, metricById.keySet());

sonar-batch/src/main/java/org/sonar/batch/FormulaDecorator.java

@@ -64,6 +64,7 @@ public final class FormulaDecorator implements Decorator {
   /**
    * {@inheritDoc}
    */
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -92,6 +93,7 @@ public final class FormulaDecorator implements Decorator {
   /**
    * {@inheritDoc}
    */
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (context.getMeasure(metric) != null) {
       return;

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

@@ -30,10 +30,12 @@ public class BatchDatabaseSessionFactory implements DatabaseSessionFactory {
     this.session = session;
   }
 
+  @Override
   public DatabaseSession getSession() {
     return session;
   }
 
+  @Override
   public void clear() {
   }
 }

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

@@ -106,14 +106,17 @@ public class BatchPluginRepository implements PluginRepository {
     }
   }
 
+  @Override
   public Plugin getPlugin(String key) {
     return pluginsByKey.get(key);
   }
 
+  @Override
   public Collection<PluginMetadata> getMetadata() {
     return metadataByKey.values();
   }
 
+  @Override
   public PluginMetadata getMetadata(String pluginKey) {
     return metadataByKey.get(pluginKey);
   }

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

@@ -56,6 +56,7 @@ public class DefaultPluginsReferential implements PluginsReferential {
     try {
       final RemotePluginFile file = remote.file();
       return fileCache.get(file.getFilename(), file.getHash(), new FileCache.Downloader() {
+        @Override
         public void download(String filename, File toFile) throws IOException {
           String url = "/deploy/plugins/" + remote.getKey() + "/" + file.getFilename();
           if (LOG.isDebugEnabled()) {

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

@@ -63,6 +63,7 @@ public class JdbcDriverHolder {
           String hash = nameAndHash[1];
 
           File jdbcDriver = fileCache.get(filename, hash, new FileCache.Downloader() {
+            @Override
             public void download(String filename, File toFile) throws IOException {
               String url = "/deploy/" + filename;
               if (LOG.isDebugEnabled()) {

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

@@ -84,6 +84,7 @@ public class TaskContainer extends ComponentContainer {
 
   private void installTaskExtensions() {
     getComponentByType(ExtensionInstaller.class).install(this, new ExtensionMatcher() {
+      @Override
       public boolean accept(Object extension) {
         return ExtensionUtils.isType(extension, TaskComponent.class);
       }

sonar-batch/src/main/java/org/sonar/batch/debt/DebtDecorator.java

@@ -79,6 +79,7 @@ public final class DebtDecorator implements Decorator {
     this.ruleFinder = ruleFinder;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -88,6 +89,7 @@ public final class DebtDecorator implements Decorator {
     return Arrays.<Metric>asList(CoreMetrics.TECHNICAL_DEBT);
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Issuable issuable = perspectives.as(Issuable.class, resource);
     if (issuable != null && shouldSaveMeasure(context)) {

sonar-batch/src/main/java/org/sonar/batch/debt/IssueChangelogDebtCalculator.java

@@ -86,6 +86,7 @@ public class IssueChangelogDebtCalculator implements BatchComponent {
       // Changelog have to be sorted from newest to oldest.
       // Null date should be the first as this happen when technical debt has changed since previous analysis.
       Ordering<FieldDiffs> ordering = Ordering.natural().reverse().nullsFirst().onResultOf(new Function<FieldDiffs, Date>() {
+        @Override
         public Date apply(FieldDiffs diff) {
           return diff.creationDate();
         }

sonar-batch/src/main/java/org/sonar/batch/debt/NewDebtDecorator.java

@@ -63,6 +63,7 @@ public final class NewDebtDecorator implements Decorator {
     this.issueChangelogDebtCalculator = issueChangelogDebtCalculator;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -74,6 +75,7 @@ public final class NewDebtDecorator implements Decorator {
       );
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     Issuable issuable = perspectives.as(Issuable.class, resource);
     if (issuable != null && shouldSaveNewMetrics(context)) {

sonar-batch/src/main/java/org/sonar/batch/debt/SqaleRatingDecorator.java

@@ -63,6 +63,7 @@ public final class SqaleRatingDecorator implements Decorator {
     this.fs = null;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -79,6 +80,7 @@ public final class SqaleRatingDecorator implements Decorator {
     return Lists.<Metric>newArrayList(CoreMetrics.SQALE_RATING, CoreMetrics.DEVELOPMENT_COST, CoreMetrics.SQALE_DEBT_RATIO);
   }
 
+  @Override
   public void decorate(Resource resource, DecoratorContext context) {
     if (ResourceUtils.isPersistable(resource) && !ResourceUtils.isUnitTestClass(resource)) {
       Long developmentCost = getDevelopmentCost(context);

sonar-batch/src/main/java/org/sonar/batch/design/BaseTangleIndexDecorator.java

@@ -57,6 +57,7 @@ public class BaseTangleIndexDecorator implements Decorator {
     return tangleIndexMetric;
   }
 
+  @Override
   public final boolean shouldExecuteOnProject(Project project) {
     return true;
   }
@@ -64,6 +65,7 @@ public class BaseTangleIndexDecorator implements Decorator {
   /**
    * {@inheritDoc}
    */
+  @Override
   public final void decorate(Resource resource, DecoratorContext context) {
     if (!shouldDecorateResource(context)) {
       return;

sonar-batch/src/main/java/org/sonar/batch/design/DirectoryDsmDecorator.java

@@ -50,10 +50,12 @@ public class DirectoryDsmDecorator implements Decorator {
     this.index = index;
   }
 
+  @Override
   public boolean shouldExecuteOnProject(Project project) {
     return true;
   }
 
+  @Override
   public void decorate(final Resource resource, DecoratorContext context) {
     if (shouldDecorateResource(resource, context)) {
       List<DecoratorContext> fileContexts = context.getChildren();