makes this flag immutable . this is a non-reversable operation . concode_field_sep boolean mImmutable concode_elem_sep int mFlags concode_field_sep F setFlag concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep int getFlags
F function ( ) { mImmutable = true ; @ SuppressWarnings ( "srini_string" ) F loc0 = ( F ) this ; return loc0 ; }