It installs the Java Runtime Environment (JRE) plugin (often version 1.6.0) required to run Java applets within Oracle enterprise software. Compatibility: Windows-only executable. Common Trigger:

. It is most commonly encountered by users trying to access legacy Oracle E-Business Suite (EBS) applications through a web browser. Oracle Blogs Key Details About Oaj2se.exe

oaj2se.exe is a legitimate executable used specifically for the Oracle J2SE Plugin

Alert: JRE (oaj2se.exe) Download from Internet Explorer Fails