Fix sonar issues

Issue-ID: POLICY-1913
Signed-off-by: huaxing <huaxing.jin@est.tech>
Change-Id: Id1a9a6b6f7a9c8c74dd69bd0d30af05162a92cd1

1 files changed, 5 insertions, 4 deletions

diff --git a/model/basic-model/src/main/java/org/onap/policy/apex/model/basicmodel/concepts/AxKeyInfo.java b/model/basic-model/src/main/java/org/onap/policy/apex/model/basicmodel/concepts/AxKeyInfo.java
index a60c609e2..35010bf4b 100644
--- a/model/basic-model/src/main/java/org/onap/policy/apex/model/basicmodel/concepts/AxKeyInfo.java
+++ b/model/basic-model/src/main/java/org/onap/policy/apex/model/basicmodel/concepts/AxKeyInfo.java
@@ -37,6 +37,7 @@ import javax.xml.bind.annotation.XmlRootElement;
 import javax.xml.bind.annotation.XmlType;
 import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
 
+import org.apache.commons.lang3.StringUtils;
 import org.onap.policy.apex.model.basicmodel.concepts.AxValidationResult.ValidationResult;
 import org.onap.policy.apex.model.basicmodel.dao.converters.CDataConditioner;
 import org.onap.policy.apex.model.basicmodel.dao.converters.Uuid2String;
@@ -64,6 +65,8 @@ public class AxKeyInfo extends AxConcept {
     private static final int MAX_DESCRIPTION_LENGTH_8192 = 8192;
     private static final int UUID_BYTE_LENGTH_16 = 16;
 
+    private static final Random sharedRandom = new Random();
+
     @EmbeddedId
     @XmlElement(name = "key", required = true)
     private AxArtifactKey key;
@@ -331,11 +334,9 @@ public class AxKeyInfo extends AxConcept {
      * @return the uuid
      */
     public static UUID generateReproducibleUuid(final String seed) {
-        final Random random;
-        if (seed != null && seed.length() > 0) {
+        Random random = sharedRandom;
+        if (!StringUtils.isEmpty(seed)) {
             random = new Random(seed.hashCode());
-        } else {
-            random = new Random();
         }
         final byte[] array = new byte[UUID_BYTE_LENGTH_16];
         random.nextBytes(array);