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https://issues.apache.org/jira/browse/CONFIGURATION-685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16301688#comment-16301688
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Oliver Heger commented on CONFIGURATION-685:
--------------------------------------------
Commons Configuration has a lot of dependencies, but most are optional and are
only needed for specific configuration implementations. Therefore, they are not
pulled in automatically, but a client application has to declare them
explicitly. As Bruno mentioned, we have documented the dependencies and when
they are required on the dependencies page.
So, can this ticket be closed?
> Implicit external dependency on DynaBean while loading a config
> ---------------------------------------------------------------
>
> Key: CONFIGURATION-685
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-685
> Project: Commons Configuration
> Issue Type: Bug
> Reporter: Fabien Renaud
>
> 100% repro.
> Getting an exception: DynaBean not found when trying to load an apache config
> file.
> Exception:
> {code}
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/commons/beanutils/DynaBean
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:264)
> at com.sun.proxy.$Proxy0.<clinit>(Unknown Source)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:739)
> at
> org.apache.commons.configuration2.builder.fluent.Parameters.createParametersProxy(Parameters.java:307)
> at
> org.apache.commons.configuration2.builder.fluent.Parameters.fileBased(Parameters.java:186)
> at com.example.App.main(App.java:13)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.commons.beanutils.DynaBean
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> ... 11 more
> {code}
> when running:
> {code}
> package com.example;
> import org.apache.commons.configuration2.YAMLConfiguration;
> import
> org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder;
> import org.apache.commons.configuration2.builder.fluent.Parameters;
> import org.apache.commons.configuration2.ex.ConfigurationException;
> class App {
> public static void main(String[] args) throws ConfigurationException {
> Parameters params = new Parameters();
> FileBasedConfigurationBuilder<YAMLConfiguration> builder1 = new
> FileBasedConfigurationBuilder<>(YAMLConfiguration.class)
> .configure(params.fileBased().setFileName("file.yml"));
> YAMLConfiguration conf = builder1.getConfiguration();
> }
> }
> {code}
> with build.gradle:
> {code}
> apply plugin: 'java'
> apply plugin: 'application'
> mainClassName = "com.example.App"
> repositories {
> jcenter()
> }
> dependencies {
> compile group: 'org.apache.commons', name: 'commons-configuration2',
> version: '2.2'
> }
> {code}
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