diff --git a/liferay-plugins-sdk-6.2/build.properties b/liferay-plugins-sdk-6.2/build.properties
index efc4a0ce..f1f63a67 100644
--- a/liferay-plugins-sdk-6.2/build.properties
+++ b/liferay-plugins-sdk-6.2/build.properties
@@ -391,7 +391,7 @@
 ## Libraries
 ##
 
-    required.portal.jars=commons-logging.jar,log4j.jar,util-bridges.jar,util-java.jar,util-taglib.jar
+    required.portal.jars=commons-logging.jar,log4j.jar,util-bridges.jar,util-taglib.jar
 
 ##
 ## Liferay Home
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/lib/util-java.jar b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/lib/util-java.jar
new file mode 100644
index 00000000..6b5d95f8
Binary files /dev/null and b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/lib/util-java.jar differ
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/src/service.properties b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/src/service.properties
index b105acec..994837b8 100644
--- a/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/src/service.properties
+++ b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/WEB-INF/src/service.properties
@@ -13,8 +13,8 @@
 ##
 
     build.namespace=portos_bo
-    build.number=2718
-    build.date=1605541032487
+    build.number=2720
+    build.date=1605786214288
     build.auto.upgrade=true
 
 ##
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/html/common/preview_file_entry.jsp b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/html/common/preview_file_entry.jsp
index 38a0388b..b010c000 100644
--- a/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/html/common/preview_file_entry.jsp
+++ b/liferay-plugins-sdk-6.2/portlets/portos-bo-portlet/docroot/html/common/preview_file_entry.jsp
@@ -217,7 +217,7 @@ boolean enableCommentRatings = false;
 											<liferay-ui:message key="generating-preview-will-take-a-few-minutes" />
 										</div>
 										<div class="loading-animation"></div>
-										<script>setTimeout(function() { window.location.reload(1)}, 8000);</script>
+										<script>setTimeout(function() { window.location.reload(1)}, 1500);</script>
 									</c:when>
 									<c:otherwise>
 										<div class="alert alert-info">									
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-fe-portlet/docroot/html/common/preview_file_entry.jsp b/liferay-plugins-sdk-6.2/portlets/portos-fe-portlet/docroot/html/common/preview_file_entry.jsp
index dcdba9ef..213c940f 100644
--- a/liferay-plugins-sdk-6.2/portlets/portos-fe-portlet/docroot/html/common/preview_file_entry.jsp
+++ b/liferay-plugins-sdk-6.2/portlets/portos-fe-portlet/docroot/html/common/preview_file_entry.jsp
@@ -215,8 +215,8 @@ boolean enableCommentRatings = false;
 										<div class="alert alert-info">
 											<liferay-ui:message key="generating-preview-will-take-a-few-minutes" />
 										</div>
-										<div class="loading-animation" />
-										<script>setTimeout(function() { window.location.reload(1)}, 8000);</script>
+										<div class="loading-animation"></div>
+										<script>setTimeout(function() { window.location.reload(1)}, 1500);</script>
 									</c:when>
 									<c:otherwise>
 										<div class="alert alert-info">