# Unnest Exceptions **URL:** \ **Category:** APM\ **Created:** [March 25, 2019, 11:45am UTC](https://discuss.elastic.co/t/unnest-exceptions/173743 "2019-03-25T11:45:02Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![gruselglatz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gruselglatz/32/42675_2.png) [@gruselglatz](https://discuss.elastic.co/u/gruselglatz)\ **Post date:** [March 25, 2019, 11:45am UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/1 "2019-03-25T11:45:03Z")
Hi, i get this error recorded by the APM-Agent. ``` Could not open Jcr Session; nested exception is javax.jcr.LoginException: Workspace access denied ``` i've set this in my properties file: `unnest_exceptions` and i also tried: `unnest_exceptions=*nested*excpetion` but it seems like the exception is not unnested. How should it look like, and what is the correct config for this case? **APM Agent language and version** : Java 1.4.0 ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [March 25, 2019, 1:08pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/2 "2019-03-25T13:08:42Z")
In order to unnest, you need to specify the class name of the Exception you want to unnest. So, if you want to unnest this `javax.jcr.LoginException`, your setting should be `unnest_exceptions=javax.jcr.LoginException` or any usage of pattern as described [in the docs](https://www.elastic.co/guide/en/apm/agent/java/current/config-core.html#config-unnest-exceptions). ---
**Author:** ![gruselglatz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gruselglatz/32/42675_2.png) [@gruselglatz](https://discuss.elastic.co/u/gruselglatz)\ **Post date:** [March 25, 2019, 1:18pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/3 "2019-03-25T13:18:50Z")
I changed it to `unnest_exceptions=javax.jcr.LoginException` but it looks and behaves the same. How should it become visible in the gui that the exception is now unnested? ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [March 25, 2019, 1:21pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/4 "2019-03-25T13:21:06Z")
Is `javax.jcr.LoginException` the nested one, or the nesting one? I can't say as I didn't get your full logs, but it should be the nesting Exception. ---
**Author:** ![gruselglatz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gruselglatz/32/42675_2.png) [@gruselglatz](https://discuss.elastic.co/u/gruselglatz)\ **Post date:** [March 25, 2019, 1:51pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/5 "2019-03-25T13:51:46Z")
Here is the full stacktrace (unneeded things away 7k limit). When i get it correctly the filter should be `javax.jcr.AccessDeniedException` then? ``` 2019-03-25 14:17:11,852 [SEVERE] 00000000 Servlet.service() for servlet [GenericServlet] in context with path [/analysis-ci] threw exception (org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/analysis-ci].[GenericServlet]: org.apache.catalina.core.StandardWrapperValve invoke) org.springframework.dao.DataAccessResourceFailureException: Could not open Jcr Session; nested exception is javax.jcr.LoginException: Workspace access denied at org.springframework.extensions.jcr.SessionFactoryUtils.getSession(SessionFactoryUtils.java:121) at ... ... org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: javax.jcr.LoginException: Workspace access denied at org.apache.jackrabbit.core.RepositoryImpl.login(RepositoryImpl.java:1529) at org.pentaho.platform.repository2.unified.jcr.sejcr.NoCachePentahoJcrSessionFactory.getSession(NoCachePentahoJcrSessionFactory.java:44) at org.pentaho.platform.repository2.unified.jcr.sejcr.GuavaCachePoolPentahoJcrSessionFactory.getSession(GuavaCachePoolPentahoJcrSessionFactory.java:145) at org.pentaho.platform.repository2.unified.jcr.sejcr.CredentialsStrategySessionFactory.getSession(CredentialsStrategySessionFactory.java:364) at org.springframework.extensions.jcr.SessionFactoryUtils.doGetSession(SessionFactoryUtils.java:87) at org.springframework.extensions.jcr.SessionFactoryUtils.getSession(SessionFactoryUtils.java:119) ... 77 more Caused by: javax.jcr.AccessDeniedException: Not allowed to access Workspace default at org.apache.jackrabbit.core.security.DefaultAccessManager.init(DefaultAccessManager.java:159) at org.apache.jackrabbit.core.DefaultSecurityManager.getAccessManager(DefaultSecurityManager.java:280) at org.apache.jackrabbit.core.SessionImpl.createAccessManager(SessionImpl.java:358) at org.apache.jackrabbit.core.SessionImpl.(SessionImpl.java:273) at org.apache.jackrabbit.core.SessionImpl.(SessionImpl.java:239) at org.apache.jackrabbit.core.XASessionImpl.(XASessionImpl.java:101) at org.apache.jackrabbit.core.RepositoryImpl.createSessionInstance(RepositoryImpl.java:1613) at org.apache.jackrabbit.core.RepositoryImpl.createSession(RepositoryImpl.java:956) at org.apache.jackrabbit.core.RepositoryImpl.login(RepositoryImpl.java:1501) ... 82 more ``` ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [March 25, 2019, 2:12pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/6 "2019-03-25T14:12:09Z")
Looks like the unnesting should be done on `org.springframework.dao.DataAccessResourceFailureException` in order to get you the `javax.jcr.LoginException`. You can not go deeper than that, though, it is only one level. ---
**Author:** ![gruselglatz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gruselglatz/32/42675_2.png) [@gruselglatz](https://discuss.elastic.co/u/gruselglatz)\ **Post date:** [March 25, 2019, 2:35pm UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/7 "2019-03-25T14:35:06Z")
Thanks now its working. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 15, 2019, 10:35am UTC](https://discuss.elastic.co/t/unnest-exceptions/173743/8 "2019-04-15T10:35:15Z")
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