diff --git a/model/framework/generator-api/src/main/java/org/openatom/ubml/model/framework/generator/api/entity/MavenDependency.java b/model/framework/generator-api/src/main/java/org/openatom/ubml/model/framework/generator/api/entity/MavenDependency.java
index ff8ee027dd96499deb37d9d97493ddc977f2cbfb..4094de2990d73a51fdaa1b66670f61ebca039d91 100644
--- a/model/framework/generator-api/src/main/java/org/openatom/ubml/model/framework/generator/api/entity/MavenDependency.java
+++ b/model/framework/generator-api/src/main/java/org/openatom/ubml/model/framework/generator/api/entity/MavenDependency.java
@@ -15,6 +15,8 @@
  */
 package org.openatom.ubml.model.framework.generator.api.entity;
 
+import org.openatom.ubml.common.util.StringUtils;
+
 /**
  * @Classname MavenDependency
  * @Description TODO
@@ -78,11 +80,24 @@ public class MavenDependency {
         this.groupId = groupId;
     }
 
-    public boolean equals(MavenDependency source) {
-        if (source == null) {
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
             return false;
         }
-        return source.getGroupId().equals(getGroupId())
-                && source.getArtifactId().equals(getArtifactId());
+        if (obj instanceof MavenDependency) {
+            MavenDependency otherMavenDependency = (MavenDependency) obj;
+            return otherMavenDependency.getGroupId().equals(getGroupId())
+                && otherMavenDependency.getArtifactId().equals(getArtifactId());
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = 17;
+        result = 31 * result + (StringUtils.isEmpty(this.getGroupId()) ? 0 : this.getGroupId().hashCode());
+        result = 31 * result + (StringUtils.isEmpty(this.getArtifactId()) ? 0 : this.getArtifactId().hashCode());
+        return result;
     }
 }