2 files changed, 3 insertions, 1 deletions
diff --git a/models-base/src/main/java/org/onap/policy/models/base/PfConceptContainer.java b/models-base/src/main/java/org/onap/policy/models/base/PfConceptContainer.java
index d259fa260..b94900430 100644
--- a/models-base/src/main/java/org/onap/policy/models/base/PfConceptContainer.java
+++ b/models-base/src/main/java/org/onap/policy/models/base/PfConceptContainer.java
@@ -322,7 +322,7 @@ public class PfConceptContainer<C extends PfConcept, A extends PfNameVersion> ex
      * @return conceptKeyVersion
      */
     public Set<C> getAllNamesAndVersions(final String conceptKeyName, final String conceptKeyVersion) {
-        if (conceptKeyName == null || conceptKeyVersion == null) {
+        if (conceptKeyName == null || conceptKeyVersion == null || PfKey.NULL_KEY_VERSION.equals(conceptKeyVersion)) {
             return getAll(conceptKeyName, conceptKeyVersion);
         } else {
             final Set<C> returnSet = new TreeSet<>();
diff --git a/models-base/src/test/java/org/onap/policy/models/base/PfConceptContainerTest.java b/models-base/src/test/java/org/onap/policy/models/base/PfConceptContainerTest.java
index 600605ae1..e28fa4cdf 100644
--- a/models-base/src/test/java/org/onap/policy/models/base/PfConceptContainerTest.java
+++ b/models-base/src/test/java/org/onap/policy/models/base/PfConceptContainerTest.java
@@ -179,6 +179,8 @@ public class PfConceptContainerTest {
         assertEquals(conceptKey, returnSet.iterator().next().getKey());
         returnSet = container.getAllNamesAndVersions(conceptKey.getName(), null);
         assertEquals(conceptKey, returnSet.iterator().next().getKey());
+        returnSet = container.getAllNamesAndVersions(conceptKey.getName(), "0.0.0");
+        assertEquals(conceptKey, returnSet.iterator().next().getKey());
         returnSet = container.getAllNamesAndVersions("IDontExist", "1.0.0");
         assertTrue(returnSet.isEmpty());