Not able to open home page of dyn/admin in ATG10.2

Not able to open home page of dyn/admin in ATG10.2

The detailed exception is: java.io.IOException: Cannot run program "javac": CreateProcess error=206, The filename or extension is too long

Solution 1)If we direcly access with nucles as below, it will work.

/dyn/admin/nucleus

Solution 2)

Add following(ExtendedJhtmlPageProcessor) component at this location and restart the sever.
atg\dynamo\servlet\pagecompile\

ExtendedJhtmlPageProcessor.properties:-
     #atg\dynamo\servlet\pagecompile\ExtendedJhtmlPageProcessor.properties
     $class=atg.servlet.pagecompile.jsp11.JSPPageProcessor
     javaCompilerClassName=atg.servlet.pagecompile.SunJavaSourceCompiler