Sonatype Nexus - unable to find valid certification path to requested target
camunda, https, maven, nexus, security
Solution
Maybe this discussion about SSL certificates could help you to get it working. If you keep having trouble with the certificates, the camunda Maven repositories can also be accessed without SSL encryption using: http://app-unsecure.camunda.com/nexus/content/groups/public/
Problem
I am using a local Sonaty Nexus where I am proxying a couple of external Maven repositories. Up to now the proxied only http repositories but for some artifacts I had to introduce Camunda. Using the Nexus remote content browser I can browse its content but the Nexus doesn't download its index. More than that, in the nexus log appear the following errors: ``` 2014-01-08 11:44:27 WARN [xy-3-thread-218] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Remote peer of proxy repository "Camunda Secure" [id=camunda.secure] threw a org.sonatype.nexus.proxy.RemoteStorageException exception. Connection/transport problems occured while connecting to remote peer of the repository. - Cause(s): Transport error while executing GET method [repositoryId="camunda.secure", requestPath="/", remoteUrl="https://app.camunda.com/nexus/content/groups/public/"] > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > unable to find valid certification path to requested target 2014-01-08 11:44:44 ERROR [tp13549765-1372] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Got RemoteStorageException in proxy repository "Camunda Secure" [id=camunda.secure] while retrievingremote artifact "ResourceStoreRequest(requestPath="/.meta/repository-metadata.xml")" from URL https://app.camunda.com/nexus/content/groups/public/, this is 1 (re)try, cause: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 2014-01-08 11:44:44 ERROR [tp13549765-1372] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Got RemoteStorageException in proxy repository "Camunda Secure" [id=camunda.secure] while retrievingremote artifact "ResourceStoreRequest(requestPath="/.meta/repository-metadata.xml")" from URL https://app.camunda.com/nexus/content/groups/public/, this is 2 (re)try, cause: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 2014-01-08 11:44:44 ERROR [tp13549765-1372] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Got RemoteStorageException in proxy repository "Camunda Secure" [id=camunda.secure] while retrievingremote artifact "ResourceStoreRequest(requestPath="/.meta/repository-metadata.xml")" from URL https://app.camunda.com/nexus/content/groups/public/, this is 3 (re)try, cause: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target 2014-01-08 11:44:44 WARN [tp13549765-1372] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Remote peer of proxy repository "Camunda Secure" [id=camunda.secure] threw a org.sonatype.nexus.proxy.RemoteStorageException exception. Connection/transport problems occured while connecting to remote peer of the repository. - Cause(s): Transport error while executing GET method [repositoryId="camunda.secure", requestPath="/.meta/repository-metadata.xml", remoteUrl="https://app.camunda.com/nexus/content/groups/public/.meta/repository-metadata.xml"] > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > unable to find valid certification path to requested target ``` What should I do to be able to download its index and to reference those artifacts in my Maven project? SK