ensures the truth of an expression involving one or more parameters to the calling method . borrowed from guava . concode_field_sep String ARGUMENT_EMPTY concode_field_sep T checkNotNull concode_elem_sep T checkNotNull concode_elem_sep void checkNotNull concode_elem_sep CharSequence checkNotNullOrEmpty concode_elem_sep CharSequence checkNotNullOrEmpty concode_elem_sep T[] checkNotNullOrEmpty concode_elem_sep void throwExceptionForBeingEmpty concode_elem_sep void throwExceptionForBeingEmpty concode_elem_sep void checkState
void function ( boolean arg0 , String arg1 , Object ... arg2 ) { if ( ! arg0 ) throw new IllegalArgumentException ( format ( arg1 , arg2 ) ) ; }