Re: [I] ZooKeeperClusterService does not work with Blueprint in Karaf [camel-karaf]

["zapdoskit1 (via GitHub)" <gi...@apache.org>]

zapdoskit1 commented on issue #594:
URL: https://github.com/apache/camel-karaf/issues/594#issuecomment-2979673105

   Found that this issue is related to https://github.com/apache/curator/issues/960.
   
   Now my solution is to replace these curator jar files for camel-zookeeper manually: 
   - curator-client https://repo1.maven.org/maven2/org/apache/curator/curator-client/5.7.1/
   - curator-framework https://repo1.maven.org/maven2/org/apache/curator/curator-framework/5.7.1/
   - curator-recipes https://repo1.maven.org/maven2/org/apache/curator/curator-recipes/5.7.1/
   - curator-x-discovery https://repo1.maven.org/maven2/org/apache/curator/curator-x-discovery/5.7.1/
   
   in \apache-karaf-4.4.7\system\org\apache\curator
   change these jar files from normal .jar version to -osgi.jar version, and rename it to .jar
   e.g. 
   > rename existing curator-client-5.7.1.jar -> curator-client-5.7.1.jar.bak
   download [curator-client-5.7.1-osgi.jar](https://repo1.maven.org/maven2/org/apache/curator/curator-client/5.7.1/curator-client-5.7.1-osgi.jar)
   rename curator-client-5.7.1-osgi.jar -> curator-client-5.7.1.jar
   place it in \apache-karaf-4.4.7\system\org\apache\curator\curator-client\5.7.1
   
   After complete all 4 curator jar files and restart karaf, the exception
   `java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: org/apache/curator/shaded/com/google/common/cache/CacheLoader`
   is gone, and another exception occurs: 
   `java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: io/netty/handler/ssl/SslContext`
   which can be solved by adding these `io.netty` library that are required from camel-zookeeper https://mvnrepository.com/artifact/org.apache.camel/camel-zookeeper/4.10.3:
   ```
   		<bundle>mvn:io.netty/netty-handler/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport-native-epoll/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-tcnative-boringssl-static/2.0.72.Final</bundle>
   		<bundle>mvn:io.netty/netty-tcnative-classes/2.0.72.Final</bundle>
   		<bundle>mvn:io.netty/netty-common/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-resolver/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-buffer/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport-native-unix-common/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-codec/4.1.122.Final</bundle>
   ```
   
   Finally, my blueprint test.xml feature for camel 4 is updated to:
   ```
   ...
   	<!-- https://mvnrepository.com/artifact/org.apache.camel.karaf/apache-camel -->
       <repository>mvn:org.apache.camel.karaf/apache-camel/4.10.3/xml/features</repository>
   
       <feature name="camel" description="camel 4.10.3 support" version="4.10.3">
   		<bundle>mvn:io.netty/netty-handler/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport-native-epoll/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-tcnative-boringssl-static/2.0.72.Final</bundle>
   		<bundle>mvn:io.netty/netty-tcnative-classes/2.0.72.Final</bundle>
   		<bundle>mvn:io.netty/netty-common/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-resolver/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-buffer/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-transport-native-unix-common/4.1.122.Final</bundle>
   		<bundle>mvn:io.netty/netty-codec/4.1.122.Final</bundle>
   
           	<feature>camel</feature>
           	<feature>camel-jms</feature>
           	<feature>camel-http</feature>
   		<feature>camel-zookeeper</feature>
   		<feature>camel-jetty</feature>
   		<feature>camel-velocity</feature>
   		<feature>camel-ftp</feature>
       </feature>
   ```
   
   and now it can use blueprint with camel 4 `ZooKeeperClusterService` and `ClusteredRoutePolicy` in jdk17...


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