I've written an Appian smart service plugin for an integration that has a de

gauravg568 over 10 years ago

I've written an Appian smart service plugin for an integration that has a dependency on jersey-client-1.18.jar, and jersey-core-1.18.jar. However, Appian's installation also has atlassian-rest-module-2.6.7.jar, which has classes with same name and package as in the jersey-client* and jersey-core* jars. The class loader seems to load the atlassian-rest-module classes, which is causing the following Class Cast Exception: Cannot cast com.sun.jersey.core.impl.provider.header.LocaleProvider to com.sun.jersey.core.impl.provider.header.LocaleProvider . Is there any way to resolve this class loading conflict so I may get my plugin smart service to use the jersey* jar classes? Appreciate your help.

Discussion posts and replies are publicly visible

Parents

0 saravanana over 10 years ago

We are facing same issue with other OpenLPR API as well.. OpenLPR API uses jersey API for making rest calls. Here is the error..

Caused by: com.sun.jersey.spi.service.ServiceConfigurationError: com.sun.jersey.spi.HeaderDelegateProvider: The class com.sun.jersey.core.impl.provider.header.LocaleProvider implementing provider interface com.sun.jersey.spi.HeaderDelegateProvider could not be instantiated: Cannot cast com.sun.jersey.core.impl.provider.header.LocaleProvider to com.sun.jersey.spi.HeaderDelegateProvider..

Even I tried to overcome by changing class loader in class where issue occured, but it does not resolve the problem
ClassLoader old = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());

Jersey stuff...

Thread.currentThread().setContextClassLoader(old);
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Reply

0 saravanana over 10 years ago

We are facing same issue with other OpenLPR API as well.. OpenLPR API uses jersey API for making rest calls. Here is the error..

Caused by: com.sun.jersey.spi.service.ServiceConfigurationError: com.sun.jersey.spi.HeaderDelegateProvider: The class com.sun.jersey.core.impl.provider.header.LocaleProvider implementing provider interface com.sun.jersey.spi.HeaderDelegateProvider could not be instantiated: Cannot cast com.sun.jersey.core.impl.provider.header.LocaleProvider to com.sun.jersey.spi.HeaderDelegateProvider..

Even I tried to overcome by changing class loader in class where issue occured, but it does not resolve the problem
ClassLoader old = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());

Jersey stuff...

Thread.currentThread().setContextClassLoader(old);
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Children

No Data