0024287: Event Handler runs 2 times when the change is made by another Event Handler

diff --git a/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestCountryEventHandler.java b/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestCountryEventHandler.java
new file mode 100644
--- /dev/null
+++ b/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestCountryEventHandler.java
@@ -0,0 +1,60 @@
+/*
+ *************************************************************************
+ * The contents of this file are subject to the Openbravo  Public  License
+ * Version  1.1  (the  "License"),  being   the  Mozilla   Public  License
+ * Version 1.1  with a permitted attribution clause; you may not  use this
+ * file except in compliance with the License. You  may  obtain  a copy of
+ * the License at http://www.openbravo.com/legal/license.html
+ * Software distributed under the License  is  distributed  on  an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ * License for the specific  language  governing  rights  and  limitations
+ * under the License.
+ * The Original Code is Openbravo ERP.
+ * The Initial Developer of the Original Code is Openbravo SLU
+ * All portions are Copyright (C) 2013 Openbravo SLU
+ * All Rights Reserved.
+ * Contributor(s):  ______________________________________.
+ ************************************************************************
+ */
+
+package org.openbravo.client.application.event;
+
+import java.util.List;
+
+import javax.enterprise.event.Observes;
+
+import org.apache.log4j.Logger;
+import org.openbravo.base.model.Entity;
+import org.openbravo.base.model.ModelProvider;
+import org.openbravo.base.model.Property;
+import org.openbravo.client.kernel.event.EntityPersistenceEventObserver;
+import org.openbravo.client.kernel.event.EntityUpdateEvent;
+import org.openbravo.model.common.geography.Country;
+import org.openbravo.model.common.geography.Region;
+
+public class TestCountryEventHandler extends EntityPersistenceEventObserver {
+
+  private static Entity[] entities = { ModelProvider.getInstance().getEntity(Country.ENTITY_NAME) };
+  protected Logger logger = Logger.getLogger(this.getClass());
+
+  @Override
+  protected Entity[] getObservedEntities() {
+    return entities;
+  }
+
+  public void onUpdate(@Observes
+  EntityUpdateEvent event) {
+    if (!isValidEvent(event)) {
+      return;
+    }
+    final Country country = (Country) event.getTargetInstance();
+    List<Region> regionList = country.getRegionList();
+    if (regionList.size() > 0) {
+      Region firstRegion = regionList.get(0);
+      firstRegion.setName(firstRegion.getName() + "_");
+      final Entity countryEntity = ModelProvider.getInstance().getEntity(Country.ENTITY_NAME);
+      final Property regionListProperty = countryEntity.getProperty(Country.PROPERTY_REGIONLIST);
+      event.setCurrentState(regionListProperty, regionList);
+    }
+  }
+}
diff --git a/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestRegionEventHandler.java b/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestRegionEventHandler.java
new file mode 100644
--- /dev/null
+++ b/modules/org.openbravo.client.application/src/org/openbravo/client/application/event/TestRegionEventHandler.java
@@ -0,0 +1,49 @@
+/*
+ *************************************************************************
+ * The contents of this file are subject to the Openbravo  Public  License
+ * Version  1.1  (the  "License"),  being   the  Mozilla   Public  License
+ * Version 1.1  with a permitted attribution clause; you may not  use this
+ * file except in compliance with the License. You  may  obtain  a copy of
+ * the License at http://www.openbravo.com/legal/license.html
+ * Software distributed under the License  is  distributed  on  an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ * License for the specific  language  governing  rights  and  limitations
+ * under the License.
+ * The Original Code is Openbravo ERP.
+ * The Initial Developer of the Original Code is Openbravo SLU
+ * All portions are Copyright (C) 2013 Openbravo SLU
+ * All Rights Reserved.
+ * Contributor(s):  ______________________________________.
+ ************************************************************************
+ */
+
+package org.openbravo.client.application.event;
+
+import javax.enterprise.event.Observes;
+
+import org.apache.log4j.Logger;
+import org.openbravo.base.model.Entity;
+import org.openbravo.base.model.ModelProvider;
+import org.openbravo.client.kernel.event.EntityPersistenceEventObserver;
+import org.openbravo.client.kernel.event.EntityUpdateEvent;
+import org.openbravo.model.common.geography.Region;
+
+public class TestRegionEventHandler extends EntityPersistenceEventObserver {
+
+  private static Entity[] entities = { ModelProvider.getInstance().getEntity(Region.ENTITY_NAME) };
+  protected Logger logger = Logger.getLogger(this.getClass());
+
+  @Override
+  protected Entity[] getObservedEntities() {
+    return entities;
+  }
+
+  public void onUpdate(@Observes
+  EntityUpdateEvent event) {
+    if (!isValidEvent(event)) {
+      return;
+    }
+    final Region region = (Region) event.getTargetInstance();
+    logger.warn(region.getName());
+  }
+}