public final ConstructorDeclarationContext constructorDeclaration() throws RecognitionException {
		ConstructorDeclarationContext _localctx = new ConstructorDeclarationContext(_ctx, getState());
		enterRule(_localctx, 54, RULE_constructorDeclaration);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(479);
			_la = _input.LA(1);
			if (_la==5) {
				{
				setState(478); typeParameters();
				}
			}

			setState(481); match(Identifier);
			setState(482); formalParameters();
			setState(485);
			_la = _input.LA(1);
			if (_la==27) {
				{
				setState(483); match(27);
				setState(484); qualifiedIdentifierList();
				}
			}

			setState(487); match(56);
			setState(489);
			switch ( getInterpreter().adaptivePredict(_input,51,_ctx) ) {
			case 1:
				{
				setState(488); explicitConstructorInvocation();
				}
				break;
			}
			setState(494);
			_errHandler.sync(this);
			_la = _input.LA(1);
			while ((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << 1) | (1L << 6) | (1L << 7) | (1L << 8) | (1L << 10) | (1L << 11) | (1L << 12) | (1L << 14) | (1L << 15) | (1L << 16) | (1L << 18) | (1L << 19) | (1L << 23) | (1L << 24) | (1L << 26) | (1L << 29) | (1L << 30) | (1L << 33) | (1L << 34) | (1L << 35) | (1L << 36) | (1L << 39) | (1L << 41) | (1L << 43) | (1L << 44) | (1L << 45) | (1L << 47) | (1L << 49) | (1L << 50) | (1L << 52) | (1L << 53) | (1L << 56) | (1L << 57) | (1L << 58) | (1L << 62))) != 0) || ((((_la - 65)) & ~0x3f) == 0 && ((1L << (_la - 65)) & ((1L << (65 - 65)) | (1L << (66 - 65)) | (1L << (67 - 65)) | (1L << (69 - 65)) | (1L << (72 - 65)) | (1L << (73 - 65)) | (1L << (74 - 65)) | (1L << (75 - 65)) | (1L << (76 - 65)) | (1L << (77 - 65)) | (1L << (79 - 65)) | (1L << (84 - 65)) | (1L << (88 - 65)) | (1L << (HexLiteral - 65)) | (1L << (DecimalLiteral - 65)) | (1L << (OctalLiteral - 65)) | (1L << (BinaryLiteral - 65)) | (1L << (FloatingPointLiteral - 65)) | (1L << (CharacterLiteral - 65)) | (1L << (StringLiteral - 65)) | (1L << (ENUM - 65)) | (1L << (ASSERT - 65)) | (1L << (Identifier - 65)))) != 0)) {
				{
				{
				setState(491); blockStatement();
				}
				}
				setState(496);
				_errHandler.sync(this);
				_la = _input.LA(1);
			}
			setState(497); match(13);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}