Improve app installation

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/impl/ApplicationManagerImpl.java

@@ -2489,8 +2489,7 @@ public class ApplicationManagerImpl implements ApplicationManager {
                 log.error(msg);
                 throw new BadRequestException(msg);
             }
-        }
+        } else if (param instanceof WebAppReleaseWrapper) {
-        if (param instanceof WebAppReleaseWrapper) {
             WebAppReleaseWrapper webAppReleaseWrapper = (WebAppReleaseWrapper) param;
             UrlValidator urlValidator = new UrlValidator();
             if (StringUtils.isEmpty(webAppReleaseWrapper.getVersion())) {