Fabien Comte created NIFI-9530:
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             Summary: ConsumeGCPubSub not working in Nifi 1.15.2
                 Key: NIFI-9530
                 URL: https://issues.apache.org/jira/browse/NIFI-9530
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
    Affects Versions: 1.15.2
            Reporter: Fabien Comte


After upgrading to Nifi 1.15.2 processor ConsumeGCPubSub fails with the 
following error :
{noformat}
ConsumeGCPubSub[id=25584328-017e-1000-1436-ae76db147150] Failed to properly 
initialize Processor. If still scheduled to run, NiFi will attempt to 
initialize and run the Processor again after the 'Administrative Yield 
Duration' has elapsed. Failure is due to java.lang.NoClassDefFoundError: 
io/grpc/internal/ManagedChannelImplBuilder$ChannelBuilderDefaultPortProvider: 
java.lang.ClassNotFoundException: 
io.grpc.internal.ManagedChannelImplBuilder$ChannelBuilderDefaultPortProvider
↳ causes: java.lang.NoClassDefFoundError: 
io/grpc/internal/ManagedChannelImplBuilder$ChannelBuilderDefaultPortProvider{noformat}
Processor was working successfully in previous versions (1.13.2 / 1.14.0 / 
1.15.0 / 1.15.1)

Steps to reproduce :
 * Launch Nifi 1.15.2
 ** Used docker : docker run --name nifi -p 8443:8443 -d apache/nifi:1.15.2
 * Connect to Nifi instance
 * Create a processor ConsumeGCPubSub and configure it with minimal settings
 ** Credentials Provider Service
 ** Project and suscription
 * Link it to another created processor (used DebugFlow)
 * Start processors



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