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.

    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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    private static Method getWriteMethod(Class type, String propertyName) throws IntrospectionException {
        Map map = getWriteMethodMap(type);
        Method method = (Method) map.get(propertyName);
        if (method == null)
            throw new IntrospectionException("No such property: " + propertyName);
        return method;
    }

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        }
      }


      if (!isSuper)
      {
        throw new IntrospectionException(_LOG.getMessage(
          "NOT_SUPERCLASS_OF", new Object[]{stopClass.getName(), beanClass.getName()}));
      }
    }


    // collect any bean info the bean creator may have provided

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      return (_isSubclass(argTypes[0], EventObject.class));
    }
    catch (Exception ex)
    {
      throw new IntrospectionException("Unexpected reflection exception: " + ex);
    }
  }

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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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    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 new TypeInfo(m.getReturnType(), m.getGenericReturnType());
    }

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    public Beanspector<T> setValue(String setterName, Object value) throws Throwable {
        Method m = setters.get(setterName.toLowerCase());
        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 (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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