question: protected void checkCustomComposite ( ) { SecurityManager sm = System . getSecurityManager ( ) ; if ( sm != null ) { if ( compPermission == null ) { compPermission = new java . awt . AWTPermission ( "readDisplayPixels" ) ; } sm . checkPermission ( compPermission ) ; } }
target:  Performs Security Permissions checks to see if a Custom Composite object should be allowed access to the pixels of this surface.