JKrehling commented on issue #1734:
URL:
https://github.com/apache/camel-kafka-connector/issues/1734#issuecomment-3494573684
Ok this does appear to have fixed it for me. I don't have a great way of
building this project and importing it so i deleted the apicurio jars and
replaced them from my parent mvn and moved them in. I used a few of these
because I was getting complaints about a missing class
`2025-11-05 22:58:10 ERROR [main] ReflectionScanner:159 - Failed to discover
Converter in
/opt/kafka/plugins/camel-azure-storage-blob-append-sink-kafka-connector: Unable
to instantiate ExtJsonConverter: Failed to invoke plugin constructor
java.lang.reflect.InvocationTargetException: null
at
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method) ~[?:?]
at
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
~[?:?]
at
java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
~[?:?]
at
java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
~[?:?]
at
java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481) ~[?:?]
at
org.apache.kafka.connect.runtime.isolation.ReflectionScanner.versionFor(ReflectionScanner.java:75)
~[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.ReflectionScanner.getPluginDesc(ReflectionScanner.java:157)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.ReflectionScanner.scanPlugins(ReflectionScanner.java:89)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.PluginScanner.scanUrlsAndAddPlugins(PluginScanner.java:79)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.PluginScanner.discoverPlugins(PluginScanner.java:67)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.Plugins.initLoaders(Plugins.java:92)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.Plugins.<init>(Plugins.java:76)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.runtime.isolation.Plugins.<init>(Plugins.java:65)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.cli.AbstractConnectCli.startConnect(AbstractConnectCli.java:121)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.cli.AbstractConnectCli.run(AbstractConnectCli.java:95)
[connect-runtime-4.0.0.jar:?]
at
org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:112)
[connect-runtime-4.0.0.jar:?]
Caused by: java.lang.NoClassDefFoundError: io/apicurio/rest/client/auth/Auth
at
io.apicurio.registry.serde.SchemaResolverConfigurer.<init>(SchemaResolverConfigurer.java:46)
~[?:?]
at
io.apicurio.registry.utils.converter.ExtJsonConverter.<init>(ExtJsonConverter.java:70)
~[?:?]
at
io.apicurio.registry.utils.converter.ExtJsonConverter.<init>(ExtJsonConverter.java:66)
~[?:?]
... 16 more
`
Since i wasn't sure where it was i just added
apicurio-common-rest-client-auth and the jdk one manually and moved them in to
test. Not sure why mvn wasn't pulling the child dependencies in but im not
very familiar with how this is built.
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-registry-utils-converter</artifactId>
<version>2.6.13.Final</version>
</dependency>
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-registry-rest-client</artifactId>
<version>1.3.2.Final</version>
</dependency>
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-registry-serdes-avro-serde</artifactId>
<version>2.6.13.Final</version>
</dependency>
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-registry-serdes-jsonschema-serde</artifactId>
<version>2.6.13.Final</version>
</dependency>
<!--
https://mvnrepository.com/artifact/io.apicurio/apicurio-common-rest-client-jdk
-->
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-common-rest-client-jdk</artifactId>
<version>0.1.18.Final</version>
</dependency>
<dependency>
<groupId>io.apicurio</groupId>
<artifactId>apicurio-common-rest-client-auth</artifactId>
<version>0.0.8.Final</version> <!-- Replace with the
compatible version -->
</dependency>
Anyways, updating this should solve the problem and I don't think 4.0 was
the root cause as this mkset was removed earlier and upgrading to 3.8 or 3.9 I
expect would have caused me the same problem.
It looks like theres only one reference to the apicurio version in the
parent pom.
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