SAP Netweaver Java pages not displaying correct font size after Upgrade

 Problem :

After NetWeaver Java system has been upgraded from a version lower than Netweaver 750. You see have observed rendering differences such as oversized text and tabs or tabs grayed out. Facing issue in Firefox, Chrome, Internet Explorer also.

Solution :

Clear Cache from Netweaver Administrator

1. Clear HTTP server cache 

Navigate to /nwa -> Configuration -> Infrastructure -> Java HTTP Provider Configuration

2. Clear as shown below

Clear Cache J2EE shell console

1. Open telnet connection to the server using telnet hostname:telnet port and login with administrator user.

2. > add http

3. > clear_http_cache

Invalidate cache ICM Web Administration Interface 

1. Goto ICM Web Admin Interface

Navigate /sap/admin --> ICM --> Server Cache 

2. Now Select Invalidate Cache.

Clear Browser Cache

1. Now clear  your browser cache related to your URL.

Result:

Upgrade SAP HOST Agent

 Problem:

How to upgrade the SAP Host Agent.

Solution:

To upgrade the SAP HostAgent you need to download the archive of SAP Serivce Market Place and then upgrade the hostagent.

1. Download the SAP Hostagent from Service Market Place.

Software Download -->  SUPPORT PACKAGES & PATCHES -->  By Alphabetical Index (A-Z) -->  H  --> SAP HOST AGENT --> SAP HOST AGENT 7.22 --> SAPHOSTAGENT52_52-80004822.SAR

2. Move the downloaded media to /usr/sap/hostctrl/exe

3. Upgrade the SAP Hostagent
./saphostexec -upgrade -archive SAPHOSTAGENT52_52-80004822.SAR

4. Check the version of upgrade hostagent

./saphostexec -version

Note:

Before proceeding for the upgrade make sure to take the backup of the running hostagent directory.

Run the upgrade with only administrative user i.e root.