[jira] [Resolved] (NIFI-10536) Getting java.lang.LinkageError when integrating Nifi with Hashicorp Vault

["Pierre Villard (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-10536?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Villard resolved NIFI-10536.
-----------------------------------
    Fix Version/s: 1.18.0
         Assignee: David Handermann
       Resolution: Duplicate

> Getting java.lang.LinkageError when integrating Nifi with Hashicorp Vault
> -------------------------------------------------------------------------
>
>                 Key: NIFI-10536
>                 URL: https://issues.apache.org/jira/browse/NIFI-10536
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Tools and Build
>    Affects Versions: 1.16.1
>            Reporter: Ruchit Mathur
>            Assignee: David Handermann
>            Priority: Major
>             Fix For: 1.18.0
>
>
> Hello,
> We configured Nifi with Hashicorp Vault using Encrypt Configuration Tool as mentioned in official Docs. We were able to add Sensitive Properties (Keystore Passwords and Sensitive Key) in our Vault KV Path, but after Restarting Nifi we encountered following errors:-
> Please note we are not encountering this Error in Nifi version 1.15.3.
> After version 1.15.3 we are getting this error in all Releases.
>  
> {code:java}
> Caused by: java.lang.LinkageError: loader constraint violation: when resolving method 'void org.springframework.http.client.HttpComponentsClientHttpRequestFactory.<init>(org.apache.http.client.HttpClient)' the class loader org.apache.nifi.property.protection.loader.PropertyProtectionURLClassLoader @69c335c4 of the current class, org/springframework/vault/client/ClientHttpRequestFactoryFactory$HttpComponents, and the class loader org.apache.nifi.nar.NarClassLoader @5792c08c for the method's defining class, org/springframework/http/client/HttpComponentsClientHttpRequestFactory, have different Class objects for the type org/apache/http/client/HttpClient used in the signature (org.springframework.vault.client.ClientHttpRequestFactoryFactory$HttpComponents is in unnamed module of loader org.apache.nifi.property.protection.loader.PropertyProtectionURLClassLoader @69c335c4, parent loader org.eclipse.jetty.webapp.WebAppClassLoader @6d4502ca; org.springframework.http.client.HttpComponentsClientHttpRequestFactory is in unnamed module of loader org.apache.nifi.nar.NarClassLoader @5792c08c, parent loader org.apache.nifi.nar.NarClassLoader @46e190ed)
>  at org.springframework.vault.client.ClientHttpRequestFactoryFactory$HttpComponents.usingHttpComponents(ClientHttpRequestFactoryFactory.java:333)
>  at org.springframework.vault.client.ClientHttpRequestFactoryFactory.create(ClientHttpRequestFactoryFactory.java:130)
>  at org.apache.nifi.vault.hashicorp.StandardHashiCorpVaultCommunicationService.<init>(StandardHashiCorpVaultCommunicationService.java:59)
>  at org.apache.nifi.properties.AbstractHashiCorpVaultSensitivePropertyProvider.<init>(AbstractHashiCorpVaultSensitivePropertyProvider.java:43)
>  at org.apache.nifi.properties.HashiCorpVaultKeyValueSensitivePropertyProvider.<init>(HashiCorpVaultKeyValueSensitivePropertyProvider.java:31)
>  at org.apache.nifi.properties.StandardSensitivePropertyProviderFactory.getProvider(StandardSensitivePropertyProviderFactory.java:230)
>  at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
>  at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992)
>  at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
>  at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
>  at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
>  at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
>  at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
>  at org.apache.nifi.properties.StandardSensitivePropertyProviderFactory.getSupportedProviders(StandardSensitivePropertyProviderFactory.java:152)
>  at org.apache.nifi.properties.NiFiPropertiesLoader.load(NiFiPropertiesLoader.java:164)
>  at org.apache.nifi.properties.NiFiPropertiesLoader.load(NiFiPropertiesLoader.java:190)
>  at org.apache.nifi.properties.NiFiPropertiesLoader.loadDefault(NiFiPropertiesLoader.java:215)
>  at org.apache.nifi.properties.NiFiPropertiesLoader.loadDefaultWithKeyFromBootstrap(NiFiPropertiesLoader.java:103)
>  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
>  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  at java.base/java.lang.reflect.Method.invoke(Method.java:568)
>  at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
>  ... 124 common frames omitted
> 2022-09-23 15:04:15,770 INFO [Thread-0] org.apache.nifi.NiFi Application Server shutdown started
> {code}
>  



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