fix success message disabling

PortletAction.java

@@ -22,6 +22,7 @@ import com.liferay.portal.kernel.servlet.ServletResponseUtil;
 import com.liferay.portal.kernel.servlet.SessionErrors;
 import com.liferay.portal.kernel.servlet.SessionMessages;
 import com.liferay.portal.kernel.util.ContentTypes;
+import com.liferay.portal.kernel.util.GetterUtil;
 import com.liferay.portal.kernel.util.JavaConstants;
 import com.liferay.portal.kernel.util.ParamUtil;
 import com.liferay.portal.kernel.util.StringPool;
@@ -168,6 +169,20 @@ public class PortletAction extends Action {
 	protected void addSuccessMessage(
 		ActionRequest actionRequest, ActionResponse actionResponse) {
 
+		HttpServletRequest request = PortalUtil.getHttpServletRequest(
+			actionRequest);
+
+		PortletConfig portletConfig = (PortletConfig)request.getAttribute(
+			JavaConstants.JAVAX_PORTLET_CONFIG);
+
+		boolean addProcessActionSuccessMessage = GetterUtil.getBoolean(
+			portletConfig.getInitParameter("add-process-action-success-action"),
+			true);
+
+		if (!addProcessActionSuccessMessage) {
+			return;
+		}
+
 		String successMessage = ParamUtil.getString(
 			actionRequest, "successMessage");