String literal comparision on left side

[policy/engine.git] / POLICY-SDK-APP / src / main / java / org / onap / policy / model / PDPGroupContainer.java

diff --git a/POLICY-SDK-APP/src/main/java/org/onap/policy/model/PDPGroupContainer.java b/POLICY-SDK-APP/src/main/java/org/onap/policy/model/PDPGroupContainer.java
index 04ec3e8..3b3f119 100644 (file)
--- a/POLICY-SDK-APP/src/main/java/org/onap/policy/model/PDPGroupContainer.java
+++ b/POLICY-SDK-APP/src/main/java/org/onap/policy/model/PDPGroupContainer.java
@@ -365,7 +365,7 @@ public class PDPGroupContainer extends PolicyItemSetChangeNotifier implements Po
        @Override
        public Object firstItemId() {
                synchronized (this.groups) {
-                       if (this.groups.size() > 0) {
+                       if (!this.groups.isEmpty()) {
                                return this.groups.get(0);
                        }
                }
@@ -375,7 +375,7 @@ public class PDPGroupContainer extends PolicyItemSetChangeNotifier implements Po
        @Override
        public Object lastItemId() {
                synchronized (this.groups) {
-                       if (this.groups.size() > 0) {
+                       if (!this.groups.isEmpty()) {
                                return this.groups.get(this.groups.size() - 1);
                        }
                }
@@ -385,8 +385,8 @@ public class PDPGroupContainer extends PolicyItemSetChangeNotifier implements Po
        @Override
        public boolean isFirstId(Object itemId) {
                synchronized (this.groups) {
-                       if (this.groups.size() > 0) {
-                               return (this.groups.get(0).equals(itemId));
+                       if (!this.groups.isEmpty()) {
+                               return this.groups.get(0).equals(itemId);
                        }
                }
                return false;
@@ -395,8 +395,8 @@ public class PDPGroupContainer extends PolicyItemSetChangeNotifier implements Po
        @Override
        public boolean isLastId(Object itemId) {
                synchronized (this.groups) {
-                       if (this.groups.size() > 0) {
-                               return (this.groups.get(this.groups.size() - 1).equals(itemId));
+                       if (!this.groups.isEmpty()) {
+                               return this.groups.get(this.groups.size() - 1).equals(itemId);
                        }
                }
                return false;
@@ -444,7 +444,7 @@ public class PDPGroupContainer extends PolicyItemSetChangeNotifier implements Po
                //
                // You cannot remove the default group
                //
-               if (((OnapPDPGroup) itemId).getId().equals("Default")) {
+               if ("Default".equals(((OnapPDPGroup) itemId).getId())) {
                        throw new UnsupportedOperationException("You can't remove the Default Group.");
                }
                //