xalan-2.7.2/src/main/java/org/apache/xalan/xsltc/compiler/FunctionCall.java [429:494]:
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    public Type typeCheckConstructor(SymbolTable stable) throws TypeCheckError{
        final Vector constructors = findConstructors();
	if (constructors == null) {
            // Constructor not found in this class
            throw new TypeCheckError(ErrorMsg.CONSTRUCTOR_NOT_FOUND, 
		_className);
        
	}

	final int nConstructors = constructors.size();
	final int nArgs = _arguments.size();
	final Vector argsType = typeCheckArgs(stable);

	// Try all constructors 
	int bestConstrDistance = Integer.MAX_VALUE;
	_type = null;			// reset
	for (int j, i = 0; i < nConstructors; i++) {
	    // Check if all parameters to this constructor can be converted
	    final Constructor constructor = 
		(Constructor)constructors.elementAt(i);
	    final Class[] paramTypes = constructor.getParameterTypes();

	    Class extType = null;
	    int currConstrDistance = 0;
	    for (j = 0; j < nArgs; j++) {
		// Convert from internal (translet) type to external (Java) type
		extType = paramTypes[j];
		final Type intType = (Type)argsType.elementAt(j);
		Object match = _internal2Java.maps(intType, extType);
		if (match != null) {
		    currConstrDistance += ((JavaType)match).distance;
		}
		else if (intType instanceof ObjectType) {
		    ObjectType objectType = (ObjectType)intType;
		    if (objectType.getJavaClass() == extType)
		        continue;
		    else if (extType.isAssignableFrom(objectType.getJavaClass()))
		        currConstrDistance += 1;
		    else {
			currConstrDistance = Integer.MAX_VALUE;
			break;
		    }
		}
		else {
		    // no mapping available
		    currConstrDistance = Integer.MAX_VALUE;
		    break;
		} 
	    }

	    if (j == nArgs && currConstrDistance < bestConstrDistance ) {
	        _chosenConstructor = constructor;
	        _isExtConstructor = true;
		bestConstrDistance = currConstrDistance;
		
                _type = (_clazz != null) ? Type.newObjectType(_clazz)
                    : Type.newObjectType(_className);
	    }
	}

	if (_type != null) {
	    return _type;
	}

	throw new TypeCheckError(ErrorMsg.ARGUMENT_CONVERSION_ERR, getMethodSignature(argsType));
    }
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xalan-2.7.1/src/main/java/org/apache/xalan/xsltc/compiler/FunctionCall.java [434:499]:
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    public Type typeCheckConstructor(SymbolTable stable) throws TypeCheckError{
        final Vector constructors = findConstructors();
	if (constructors == null) {
            // Constructor not found in this class
            throw new TypeCheckError(ErrorMsg.CONSTRUCTOR_NOT_FOUND, 
		_className);
        
	}

	final int nConstructors = constructors.size();
	final int nArgs = _arguments.size();
	final Vector argsType = typeCheckArgs(stable);

	// Try all constructors 
	int bestConstrDistance = Integer.MAX_VALUE;
	_type = null;			// reset
	for (int j, i = 0; i < nConstructors; i++) {
	    // Check if all parameters to this constructor can be converted
	    final Constructor constructor = 
		(Constructor)constructors.elementAt(i);
	    final Class[] paramTypes = constructor.getParameterTypes();

	    Class extType = null;
	    int currConstrDistance = 0;
	    for (j = 0; j < nArgs; j++) {
		// Convert from internal (translet) type to external (Java) type
		extType = paramTypes[j];
		final Type intType = (Type)argsType.elementAt(j);
		Object match = _internal2Java.maps(intType, extType);
		if (match != null) {
		    currConstrDistance += ((JavaType)match).distance;
		}
		else if (intType instanceof ObjectType) {
		    ObjectType objectType = (ObjectType)intType;
		    if (objectType.getJavaClass() == extType)
		        continue;
		    else if (extType.isAssignableFrom(objectType.getJavaClass()))
		        currConstrDistance += 1;
		    else {
			currConstrDistance = Integer.MAX_VALUE;
			break;
		    }
		}
		else {
		    // no mapping available
		    currConstrDistance = Integer.MAX_VALUE;
		    break;
		} 
	    }

	    if (j == nArgs && currConstrDistance < bestConstrDistance ) {
	        _chosenConstructor = constructor;
	        _isExtConstructor = true;
		bestConstrDistance = currConstrDistance;
		
                _type = (_clazz != null) ? Type.newObjectType(_clazz)
                    : Type.newObjectType(_className);
	    }
	}

	if (_type != null) {
	    return _type;
	}

	throw new TypeCheckError(ErrorMsg.ARGUMENT_CONVERSION_ERR, getMethodSignature(argsType));
    }
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