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Sonatype Nexus - Could not find a valid certification path for the requested target

I use the local Sonaty Nexus, where I proxy a couple of external Maven repositories. So far, only http repositories have been proxied, but for some artifacts I had to introduce Camunda . Using the Nexus Remote Content Browser, I can view its contents, but Nexus does not load its index. Moreover, the following errors are displayed in the communication log:

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 download its index and reference these artifacts in my Maven project?

SC

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3 answers

: -

maven , , , foo.domain.com .

1) , maven. . , , maven

: -

a) - , JDK - caccerts JAVA_HOME

b), .mavnerc /​​Users/username/, . , , , .

2) keytool

keytool -import -alias alias_name -file certificate_name -keystore keystorelocation
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SSL .

linux:

openssl s_client -showcerts -connect app.camunda.com:443 </dev/null 2>/dev/null|openssl x509 -outform PEM > mycertfile.pem

Import the certificate into the java key store. See https://www.sslshopper.com/article-most-common-java-keytool-keystore-commands.html how to do this.

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