Examples of java.beans.IntrospectionException

java.beans.IntrospectionException
Thrown when an exception happens during Introspection.
Typical causes include not being able to map a string class name to a Class object, not being able to resolve a string method name, or specifying a method name that has the wrong type signature for its intended use.

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


        // No Method found
        throw new IntrospectionException("No method \"" + methodName +
                "\" with " + parameterCount + " parameter(s)");
    }

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        }


        int parameterCount = (parameterTypes == null) ? 0 : parameterTypes.length;


        // No Method found
        throw new IntrospectionException("No method \"" + methodName +
                "\" with " + parameterCount + " parameter(s) of matching types.");
    }

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        if (descriptor != null) {
            Method reader = descriptor.getReadMethod();


            if (reader == null) {
                throw new IntrospectionException("Unreadable property '"
                        + pathSegment
                        + "'");
            }


            return reader.invoke(object, (Object[]) null);
        }
        // note that Map has two traditional bean properties - 'empty' and 'class', so
        // do a check here only after descriptor lookup failed.
        else if (object instanceof Map) {
            return ((Map<?, ?>) object).get(pathSegment);
        }
        else {
            throw new IntrospectionException("No property '"
                    + pathSegment
                    + "' found in class "
                    + object.getClass().getName());
        }
    }

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        if (descriptor != null) {
            Method writer = descriptor.getWriteMethod();


            if (writer == null) {
                throw new IntrospectionException("Unwritable property '"
                        + pathSegment
                        + "'");
            }


            // do basic conversions


            value = ConverterFactory.factory
                    .getConverter(descriptor.getPropertyType())
                    .convert(value, descriptor.getPropertyType());


            // set
            writer.invoke(object, value);
        }
        // note that Map has two traditional bean properties - 'empty' and 'class', so
        // do a check here only after descriptor lookup failed.
        else if (object instanceof Map) {
            ((Map<Object, Object>) object).put(pathSegment, value);
        }
        else {
            throw new IntrospectionException("No property '"
                    + pathSegment
                    + "' found in class "
                    + object.getClass().getName());
        }
    }

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                if (propertyName.equals(descriptors[i].getName())) {
                    return descriptors[i].getReadMethod();
                }
            }


            throw new IntrospectionException("No getter found for " + propertyName);
        }

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    public Beanspector<T> setValue(String setterName, Object value) throws Throwable {
        Method m = setters.get(setterName);
        if (m == null) {
            String msg = String.format("Setter '%s' not found, " + "known setters are: %s", setterName,
                                       setters.keySet());
            throw new IntrospectionException(msg);
        }
        setValue(m, value);
        return this;
    }

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        }
        if (m == null) {
            String msg = String.format("Accessor '%s' not found, "
                                       + "known setters are: %s, known getters are: %s", getterOrSetterName,
                                       setters.keySet(), getters.keySet());
            throw new IntrospectionException(msg);
        }
        return m.getReturnType();
    }

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                if (propertyName.equals(descriptor.getName())) {
                    return descriptor.getReadMethod();
                }
            }


            throw new IntrospectionException("No getter found for " + propertyName);
        }

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        if (descriptor != null) {
            Method reader = descriptor.getReadMethod();


            if (reader == null) {
                throw new IntrospectionException("Unreadable property '"
                        + pathSegment
                        + "'");
            }


            return reader.invoke(object, null);
        }
        // note that Map has two traditional bean properties - 'empty' and 'class', so
        // do a check here only after descriptor lookup failed.
        else if (object instanceof Map) {
            return ((Map) object).get(pathSegment);
        }
        else {
            throw new IntrospectionException("No property '"
                    + pathSegment
                    + "' found in class "
                    + object.getClass().getName());
        }
    }

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        if (descriptor != null) {
            Method writer = descriptor.getWriteMethod();


            if (writer == null) {
                throw new IntrospectionException("Unwritable property '"
                        + pathSegment
                        + "'");
            }


            // do basic conversions


            value = ConverterFactory.factory
                    .getConverter(descriptor.getPropertyType())
                    .convert(value, descriptor.getPropertyType());


            // set
            writer.invoke(object, new Object[] {
                value
            });
        }
        // note that Map has two traditional bean properties - 'empty' and 'class', so
        // do a check here only after descriptor lookup failed.
        else if (object instanceof Map) {
            ((Map) object).put(pathSegment, value);
        }
        else {
            throw new IntrospectionException("No property '"
                    + pathSegment
                    + "' found in class "
                    + object.getClass().getName());
        }
    }

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