Details
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Bug
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Status: Closed
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Major
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Resolution: Cannot Reproduce
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0.95.1
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None
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None
Description
With Roman, am trying to set up a bigtop ci of hbase 0.95 only we fail to compile. It is the exotic generics that are going on over in AggregateClient. Here is how we fail:
[ERROR] COMPILATION ERROR : [INFO] ------------------------------------------------------------- [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[135,59] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds Q,com.google.protobuf.Message [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[208,59] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds Q,com.google.protobuf.Message [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[328,57] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds T,com.google.protobuf.Message [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[390,57] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds T,com.google.protobuf.Message [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[489,59] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds T,com.google.protobuf.Message [ERROR] /mnt/jenkins/workspace/HBase-0.95/label/centos6/build/hbase/rpm/BUILD/hbase-0.95-SNAPSHOT/hbase-client/src/main/java/org/apache/hadoop/hbase/client/coprocessor/AggregationClient.java:[591,59] type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds T,com.google.protobuf.Message [INFO] 6 errors
I cannot reproduce locally but googling, I see that above is pretty common complaint when you move between compilers. Various are the recommendations for fix but none definitive. The easiest is dumbing down the generics which I tried but it only caused issues in other coprocessors.
If clues on how to fix this, I'm all ears. Would like to get this bigtop ci build running. Its cool.