How To Locate Intradoc Jar, RIDC Extensions and Site Studio into JDeveloper

Importing RIDC extension into jDeveloper:
(Help -> Check For Updates -> Source -> Install From file)
%MIDDLEWARE_HOME%/Oracle_ECM1/ucm/Distribution/RIDC/jdev


Importing Site Studio extension into jDeveloper:
(Help -> Check For Updates -> Source -> Install From file)
%MIDDLEWARE_HOME%/Oracle_ECM1/ucm/Distribution/SiteStudioExternalApplications/jdev

Intradoc Classes are available as JAR in following location :
 %MIDDLEWARE_HOME%//Oracle_ECM1/ucm/idc/jlib/idcserver.jar


Done