public final TypeArgumentContext typeArgument() throws RecognitionException {
		TypeArgumentContext _localctx = new TypeArgumentContext(_ctx, getState());
		enterRule(_localctx, 48, RULE_typeArgument);
		int _la;
		try {
			setState(443);
			switch (_input.LA(1)) {
			case Identifier:
				enterOuterAlt(_localctx, 1);
				{
				setState(437); classOrInterfaceType();
				}
				break;
			case 51:
				enterOuterAlt(_localctx, 2);
				{
				setState(438); match(51);
				setState(441);
				_la = _input.LA(1);
				if (_la==18 || _la==60) {
					{
					setState(439);
					_la = _input.LA(1);
					if ( !(_la==18 || _la==60) ) {
					_errHandler.recoverInline(this);
					}
					consume();
					setState(440); classOrInterfaceType();
					}
				}

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