2168626 - Netweaver Java displaying junk page

When accessing Webdynpro based application pages like NWA, Portal(IRJ) the browser displays a 'junk' page. The pages consists of random rows of characters.

There is a similar error in the default traces:

#1.5�#842B2B0CEE75006C0000000800000F3A00050F75B353CCD2#1424373077757#com.sap.engine.services.servlets_jsp.client.RequestInfoServer#sap.com/tc~wd~dispwda#com.sap.engine.services.servlets_jsp.client.RequestInfoServer#GUEST#97##n/a##12c66ddcb86b11e49e5000002983eefa#SAPEngine_Application_Thread[impl:3]_19##0#0#Error##Plain###application [webdynpro/dispatcher] Processing HTTP request to servlet [dispatcher] finished with error. The error is: java.lang.StringIndexOutOfBoundsException
 at java.lang.String.substring(String.java:1067) at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.WebDynproIViewAreaRenderer.render(WebDynproIViewAreaRenderer.java:32)

Example screenshot:

SAP Netweaver Release Independent

KBA , BC-JAS-WEB , Web Container, HTTP, JavaMail, Servlets , BC-JAS-COR , Enterprise Runtime, Core J2EE Framework , BC-WD-JAV , WebDynpro Java , Problem