public final TypeArgumentContext typeArgument() throws RecognitionException {
		TypeArgumentContext _localctx = new TypeArgumentContext(_ctx, getState());
		enterRule(_localctx, 88, RULE_typeArgument);
		int _la;
		try {
			setState(634);
			switch (_input.LA(1)) {
			case BOOLEAN:
			case BYTE:
			case CHAR:
			case DOUBLE:
			case FLOAT:
			case INT:
			case LONG:
			case SHORT:
			case Identifier:
				enterOuterAlt(_localctx, 1);
				{
				setState(628); type();
				}
				break;
			case QUESTION:
				enterOuterAlt(_localctx, 2);
				{
				setState(629); match(QUESTION);
				setState(632);
				_la = _input.LA(1);
				if (_la==EXTENDS || _la==SUPER) {
					{
					setState(630);
					_la = _input.LA(1);
					if ( !(_la==EXTENDS || _la==SUPER) ) {
					_errHandler.recoverInline(this);
					}
					consume();
					setState(631); type();
					}
				}

				}
				break;
			default:
				throw new NoViableAltException(this);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}