added equals, hashCode and toString methods to Plugin class

scm-core/src/main/java/sonia/scm/plugin/Plugin.java

@@ -33,6 +33,10 @@
 
 package sonia.scm.plugin;
 
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.common.base.Objects;
+
 //~--- JDK imports ------------------------------------------------------------
 
 import java.util.Set;
@@ -53,6 +57,71 @@ import javax.xml.bind.annotation.XmlTransient;
 public class Plugin
 {
 
+  /**
+   * Method description
+   *
+   *
+   * @param obj
+   *
+   * @return
+   */
+  @Override
+  public boolean equals(Object obj)
+  {
+    if (obj == null)
+    {
+      return false;
+    }
+
+    if (getClass() != obj.getClass())
+    {
+      return false;
+    }
+
+    final Plugin other = (Plugin) obj;
+
+    return Objects.equal(condition, other.condition)
+      && Objects.equal(information, other.information)
+      && Objects.equal(packageSet, other.packageSet)
+      && Objects.equal(path, other.path)
+      && Objects.equal(resources, other.resources);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public int hashCode()
+  {
+    return Objects.hashCode(condition, information, packageSet, packageSet,
+      resources);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public String toString()
+  {
+    //J-
+    return Objects.toStringHelper(this)
+                  .add("condition", condition)
+                  .add("information", information)
+                  .add("packageSet", packageSet)
+                  .add("path", path)
+                  .add("resources", resources)
+                  .toString();
+    //J+
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
   /**
    * Method description
    *