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https://issues.apache.org/jira/browse/HTTPCLIENT-1727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Charles Allen resolved HTTPCLIENT-1727.
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Resolution: Fixed
> org.apache.http.impl.client.AbstractHttpClient#createClientConnectionManager
> Does not account for context class loader
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1727
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1727
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 4.4.1, 4.5, 4.5.1, 4.5.2
> Reporter: Charles Allen
> Fix For: 4.5.3
>
>
> org.apache.http.impl.client.AbstractHttpClient#createClientConnectionManager
> Does not account for context class loader.
> This means that only ClientConnectionManager factories visible in
> AbstractHttpClient's classloader are loadable by AbstractHttpClient
> An example of a failure here is if httpclient and jets3t are loaded in
> different classloaders, where jets3t is in a child classloader of
> httpclient's classloader. In such a case httpclient classes will be visible
> to jets3t, but jets3t's classes will not be visible to httpclient so
> org.jets3t.service.utils.RestUtils$ConnManagerFactory will not be found.
> The proposed fix against the 4.5.x branch is as follows:
> {code}
> diff --git
> a/httpclient/src/main/java-deprecated/org/apache/http/impl/client/AbstractHttpClient.java
>
> b/httpclient/src/main/java-deprecated/org/apache/http/impl/client/AbstractHttpClient.java
> index 18a42d7..34c6e0f 100644
> ---
> a/httpclient/src/main/java-deprecated/org/apache/http/impl/client/AbstractHttpClient.java
> +++
> b/httpclient/src/main/java-deprecated/org/apache/http/impl/client/AbstractHttpClient.java
> @@ -327,9 +327,15 @@ public abstract class AbstractHttpClient extends
> CloseableHttpClient {
> final String className = (String) params.getParameter(
> ClientPNames.CONNECTION_MANAGER_FACTORY_CLASS_NAME);
> + final ClassLoader contextLoader =
> Thread.currentThread().getContextClassLoader();
> if (className != null) {
> try {
> - final Class<?> clazz = Class.forName(className);
> + final Class<?> clazz;
> + if(contextLoader != null) {
> + clazz = Class.forName(className, true, contextLoader);
> + } else {
> + clazz = Class.forName(className);
> + }
> factory = (ClientConnectionManagerFactory)
> clazz.newInstance();
> } catch (final ClassNotFoundException ex) {
> throw new IllegalStateException("Invalid class name: " +
> className);
> {code}
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