Duo Zhang created HBASE-26496:
---------------------------------

             Summary: [hbase-thirdparty] Exclude the original protobuf-java jar 
when shading
                 Key: HBASE-26496
                 URL: https://issues.apache.org/jira/browse/HBASE-26496
             Project: HBase
          Issue Type: Bug
          Components: hbase-thirdparty
            Reporter: Duo Zhang


We have a patched version of protobuf and we will compile it, and then in shade 
we also include the original protobuf-java, where we will get lot of warnings

{noformat}
WARNING] hbase-shaded-protobuf-3.5.1.jar, protobuf-java-3.17.1.jar define 670 
overlapping class and resource:
[WARNING]   - META-INF/MANIFEST.MF
[WARNING]   - com.google.protobuf.AbstractMessage
[WARNING]   - com.google.protobuf.AbstractMessage$Builder
[WARNING]   - com.google.protobuf.AbstractMessage$BuilderParent
[WARNING]   - com.google.protobuf.AbstractMessageLite
[WARNING]   - com.google.protobuf.AbstractMessageLite$Builder
[WARNING]   - com.google.protobuf.AbstractMessageLite$Builder$LimitedInputStream
[WARNING]   - com.google.protobuf.AbstractMessageLite$InternalOneOfEnum
[WARNING]   - com.google.protobuf.AbstractParser
[WARNING]   - com.google.protobuf.AbstractProtobufList
[WARNING]   - 660 more...
[WARNING] maven-shade-plugin has detected that some class files are
[WARNING] present in two or more JARs. When this happens, only one
[WARNING] single version of the class is copied to the uber jar.
[WARNING] Usually this is not harmful and you can skip these warnings,
[WARNING] otherwise try to manually exclude artifacts based on
[WARNING] mvn dependency:tree -Ddetail=true and the above output.
[WARNING] See http://maven.apache.org/plugins/maven-shade-plugin/
[WARNING] hbase-shaded-protobuf-3.5.1-sources.jar, 
protobuf-java-3.17.1-sources.jar define 202 overlapping resources: 
[WARNING]   - META-INF/MANIFEST.MF
[WARNING]   - com/google/protobuf/AbstractMessage.java
[WARNING]   - com/google/protobuf/AbstractMessageLite.java
[WARNING]   - com/google/protobuf/AbstractParser.java
[WARNING]   - com/google/protobuf/AbstractProtobufList.java
[WARNING]   - com/google/protobuf/AllocatedBuffer.java
[WARNING]   - com/google/protobuf/Android.java
[WARNING]   - com/google/protobuf/Any.java
[WARNING]   - com/google/protobuf/AnyOrBuilder.java
[WARNING]   - com/google/protobuf/AnyProto.java
[WARNING]   - 192 more...
[WARNING] maven-shade-plugin has detected that some class files are
[WARNING] present in two or more JARs. When this happens, only one
[WARNING] single version of the class is copied to the uber jar.
[WARNING] Usually this is not harmful and you can skip these warnings,
[WARNING] otherwise try to manually exclude artifacts based on
[WARNING] mvn dependency:tree -Ddetail=true and the above output.
[WARNING] See http://maven.apache.org/plugins/maven-shade-plugin/
{noformat}

Maybe this is the case why we bundle the incorrect protobuf classes and cause 
the failure when running with JDK8.



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