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-rw-r--r--sonar-core/src/main/java/org/sonar/core/metric/ScannerMetrics.java4
1 files changed, 4 insertions, 0 deletions
diff --git a/sonar-core/src/main/java/org/sonar/core/metric/ScannerMetrics.java b/sonar-core/src/main/java/org/sonar/core/metric/ScannerMetrics.java
index 6406336c580..3052cefcffb 100644
--- a/sonar-core/src/main/java/org/sonar/core/metric/ScannerMetrics.java
+++ b/sonar-core/src/main/java/org/sonar/core/metric/ScannerMetrics.java
@@ -24,6 +24,9 @@ import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.stream.Stream;
+
+import javax.annotation.concurrent.Immutable;
+
import org.sonar.api.batch.ScannerSide;
import org.sonar.api.ce.ComputeEngineSide;
import org.sonar.api.measures.Metric;
@@ -70,6 +73,7 @@ import static org.sonar.core.util.stream.MoreCollectors.toSet;
* <p/>
* Scanners should not send other metrics, and the Compute Engine should not allow other metrics.
*/
+@Immutable
@ComputeEngineSide
@ScannerSide
public class ScannerMetrics {