Getting no class found error with injection of ResourceResolverFactory

Forum|Forum|9 years ago
January 16, 2017
10 replies
5784 views

When injecting ResourceResolverFactory into my custom OSGi service I'm gettting a the following exceptions thrown:

*Cannot create component instance due to failure to bind reference repository

*ERROR (org.osgi.framework.ServiceException: Service factory exception: org/apache/sling/api/resource/ResourceResolverFactory)

*com.rogers.services.FolderMonitorService-bundle [com.rogers.services.impl.FolderMonitorServiceImpl(2222)] Failure loooking up method bindResolverFactory(org.osgi.framework.ServiceReference) in class class com.rogers.services.impl.FolderMonitorServiceImpl. Assuming no such method. (java.lang.NoClassDefFoundError: org/apache/sling/api/resource/ResourceResolverFactory)

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Best answer by smacdonald2008

Using the method described in that article and using the Sling User Mapping service is best practice.

smacdonald2008

Level 10

Take a look at this article -

http://scottsdigitalcommunity.blogspot.ca/2014/12/querying-adobe-experience-manager-6.html

smacdonald2008Accepted solution

Level 10

Using the method described in that article and using the Sling User Mapping service is best practice.

TheBigRedAuthor

Level 4

The following doesn't seem to exist in the API:

ResourceResolverFactory.SUBSERVICE

resolverFactory.getServiceResourceResolver(param);

while using this dependancy:

        <dependency>
            <groupId>org.apache.sling</groupId>
            <artifactId>org.apache.sling.api</artifactId>
            <version>2.8.0</version>
       </dependency>

TheBigRedAuthor

Level 4

Had to forcefully update dependencies and close/open project to update to 2.8.0

smacdonald2008

Level 10

Did that help?

TheBigRedAuthor

Level 4

I'm getting the following exception:

18.01.2017 10:44:04.132 *ERROR* [0:0:0:0:0:0:0:1 [1484754244068] GET /content/fms.html HTTP/1.1] com.day.cq.wcm.core.impl.WCMDebugFilter Error during include of SlingRequestPathInfo: path='/content/fms/jcr:content', selectorString='null', extension='html', suffix='null' org.apache.sling.api.scripting.ScriptEvaluationException:

This is how I'm calling it

@Component @Service(Value=SomeClass.class) public class SomeClassImpl implements SomeClass{ @Reference private ResourceResolverFactory resolverFactory; private void someMethod(){ try{ Map<String, Object> param = new HashMap<String, Object>(); param.put(ResourceResolverFactory.SUBSERVICE, "datawrite"); ResourceResolver resourceResolver = resolverFactory.getServiceResourceResolver(param);; session = resourceResolver.adaptTo(Session.class); } catch (Exception e) { log.info(e.getLocalizedMessage()); } } }

I tried restarting the bundles suggested here: https://forums.adobe.com/thread/1117916

And it still didn't work

Ben_Cherian

I'm getting this to in 6.2 SP1 using the sp1 uber jar. It's looking for the method 'bindResolverFactory()', but we've never had to implement that before

Full stack is below

18.01.2017 10:57:00.809 *WARN* [OsgiInstallerImpl] com.XXX.aem.aem-sites [com.XXX.aem.integration.pdb.PDBProductCatalogImporterService(2874)] Failure loooking up method bindResolverFactory(org.osgi.framework.ServiceReference) in class class com.XXX.aem.integration.pdb.PDBProductCatalogImporterService. Assuming no such method. (java.lang.NoClassDefFoundError: javax/jcr/version/VersionException)
java.lang.NoClassDefFoundError: javax/jcr/version/VersionException
   at java.lang.Class.getDeclaredMethods0(Native Method)
   at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
   at java.lang.Class.getDeclaredMethod(Class.java:2128)
   at org.apache.felix.scr.impl.helper.BaseMethod.getMethod(BaseMethod.java:316)
   at org.apache.felix.scr.impl.helper.BindMethod.getServiceReferenceMethod(BindMethod.java:392)
   at org.apache.felix.scr.impl.helper.BindMethod.doFindMethod(BindMethod.java:113)
   at org.apache.felix.scr.impl.helper.BaseMethod.findMethod(BaseMethod.java:171)
   at org.apache.felix.scr.impl.helper.BaseMethod.access$400(BaseMethod.java:37)
   at org.apache.felix.scr.impl.helper.BaseMethod$NotResolved.resolve(BaseMethod.java:558)
   at org.apache.felix.scr.impl.helper.BaseMethod$NotResolved.methodExists(BaseMethod.java:580)
   at org.apache.felix.scr.impl.helper.BaseMethod.methodExists(BaseMethod.java:513)
   at org.apache.felix.scr.impl.helper.BindMethod.getServiceObject(BindMethod.java:643)
   at org.apache.felix.scr.impl.manager.DependencyManager.getServiceObject(DependencyManager.java:2137)
   at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.prebind(DependencyManager.java:1048)
   at org.apache.felix.scr.impl.manager.DependencyManager.prebind(DependencyManager.java:1457)
   at org.apache.felix.scr.impl.manager.AbstractComponentManager.collectDependencies(AbstractComponentManager.java:983)
   at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:812)
   at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:774)
... Omitting some for post length contraints
Caused by: java.lang.ClassNotFoundException: javax.jcr.version.VersionException not found by com.XXX.aem.aem-sites [473]
   at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1574)
   at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79)
   at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
   ... 115 common frames omitted