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-rw-r--r--controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java5
1 files changed, 3 insertions, 2 deletions
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
index 0ec0098a1..3e93bd761 100644
--- a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
@@ -23,6 +23,7 @@ package org.onap.policy.guard;
import java.math.BigInteger;
import java.sql.Timestamp;
import java.util.Collection;
+import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
@@ -112,13 +113,13 @@ public class PIPEngineGetHistory extends StdConfigurableEngine{
@Override
public Collection<PIPRequest> attributesRequired() {
// TODO Auto-generated method stub
- return null;
+ return Collections.emptySet();
}
@Override
public Collection<PIPRequest> attributesProvided() {
// TODO Auto-generated method stub
- return null;
+ return Collections.emptySet();
}
@Override