OpenJDK fails to compile hadoop 0.23.1

[Maurizio Cimadamore]

Have you tried with OpenJDK 7/8 ?

Maurizio

On 05/04/12 15:20, Radim Kolar wrote:
> ponto:(crawler)/tmp/hadoop-common>java -version
> openjdk version "1.6.0_30"
> OpenJDK Runtime Environment (build 1.6.0_30-b24)
> OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)
>
> fails with:
>
> [ERROR] Failed to execute goal 
> org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile 
> (default-compile) on project hadoop-mapreduce-client-core: Compilation 
> failure: Compilation failure:
> [ERROR] 
> /tmp/hadoop-common/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Counters.java:[93,49] 
> incompatible types; inferred type argument(s) 
> org.apache.hadoop.mapreduce.Counter,java.lang.Object do not conform to 
> bounds of type variable(s) C,G
> [ERROR] found   : <C,G>java.lang.String
> [ERROR] required: java.lang.String
> [ERROR] 
> /tmp/hadoop-common/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Counters.java:[576,33] 
> incompatible types; inferred type argument(s) 
> org.apache.hadoop.mapreduce.Counter,java.lang.Object do not conform to 
> bounds of type variable(s) C,G
> [ERROR] found   : <C,G>java.lang.String
> [ERROR] required: java.lang.String
> [ERROR] 
> /tmp/hadoop-common/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Counters.java:[588,36] 
> incompatible types; inferred type argument(s) 
> org.apache.hadoop.mapreduce.Counter,java.lang.Object do not conform to 
> bounds of type variable(s) C,G
> [ERROR] found   : <C,G>org.apache.hadoop.mapred.Counters
> [ERROR] required: org.apache.hadoop.mapred.Counters
>
> replacing openjdk tools.jar with oracle java 6 tools.jar solved this 
> problem  - hadoop compiles fine.