[CONFIGURATION-627] BeanHelper exception on XMLConfiguration builder.getConfiguration()

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.1.1

Environment

JDK 1.8, Maven 3.3.9

• Assignee: Unassigned
• Reporter: Martin
• Created: 04/May/16 22:54
• Updated: 08/Feb/17 19:27
• Resolved: 06/Oct/16 19:54

Description

Creating an XMLConfiguration from a file with a builder:

builder =
        new FileBasedConfigurationBuilder<XMLConfiguration>(
                XMLConfiguration.class)
                        .configure(params.xml()
                                .setFileName(
                                        propsFile.getCanonicalPath())
                                .setValidating(false));

config = builder.getConfiguration();

Causes a non-halting exception originating in org.apache.commons.configuration2.beanutils.BeanHelper, method
private static boolean isPropertyWriteable(Object bean, String propName) with parameters XMLConfiguration, "validating".

The exception:

    May 04, 2016 3:29:26 PM org.apache.commons.beanutils.FluentPropertyBeanIntrospector introspect
    WARNING: Error when creating PropertyDescriptor for public final void org.apache.commons.configuration2.AbstractConfiguration.setProperty(java.lang.String,java.lang.Object)! Ignoring this property.
    java.beans.IntrospectionException: bad write method arg count: public final void org.apache.commons.configuration2.AbstractConfiguration.setProperty(java.lang.String,java.lang.Object)
        at java.beans.PropertyDescriptor.findPropertyType(PropertyDescriptor.java:657)
        at java.beans.PropertyDescriptor.setWriteMethod(PropertyDescriptor.java:327)
        at java.beans.PropertyDescriptor.<init>(PropertyDescriptor.java:139)
        at org.apache.commons.beanutils.FluentPropertyBeanIntrospector.createFluentPropertyDescritor(FluentPropertyBeanIntrospector.java:177)
        at org.apache.commons.beanutils.FluentPropertyBeanIntrospector.introspect(FluentPropertyBeanIntrospector.java:140)
        at org.apache.commons.beanutils.PropertyUtilsBean.fetchIntrospectionData(PropertyUtilsBean.java:2234)
        at org.apache.commons.beanutils.PropertyUtilsBean.getIntrospectionData(PropertyUtilsBean.java:2215)
        at org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptor(PropertyUtilsBean.java:950)
        at org.apache.commons.beanutils.PropertyUtilsBean.isWriteable(PropertyUtilsBean.java:1466)
        at org.apache.commons.configuration2.beanutils.BeanHelper.isPropertyWriteable(BeanHelper.java:521)
        at org.apache.commons.configuration2.beanutils.BeanHelper.initProperty(BeanHelper.java:357)
        at org.apache.commons.configuration2.beanutils.BeanHelper.initBeanProperties(BeanHelper.java:273)
        at org.apache.commons.configuration2.beanutils.BeanHelper.initBean(BeanHelper.java:192)
        at org.apache.commons.configuration2.beanutils.BeanHelper$BeanCreationContextImpl.initBean(BeanHelper.java:669)
        at org.apache.commons.configuration2.beanutils.DefaultBeanFactory.initBeanInstance(DefaultBeanFactory.java:162)
        at org.apache.commons.configuration2.beanutils.DefaultBeanFactory.createBean(DefaultBeanFactory.java:116)
        at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:459)
        at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:479)
        at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:492)
        at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResultInstance(BasicConfigurationBuilder.java:447)
        at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResult(BasicConfigurationBuilder.java:417)
    at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.getConfiguration(BasicConfigurationBuilder.java:285)

Issue Links

• duplicates: BEANUTILS-477 Warnings from FluentPropertyBeanIntrospector when creating a CombinedConfiguration from a CombinedConfigurationBuilder
• is blocked by: BEANUTILS-492 IndexedPropertyDescriptor not supported for List in Java 8