Since HDFS-3113 was integrated into Hadoop-2 I get the compilation errors of the following type:
[ERROR] /home/lars/dev/hadoop-2/hadoop-hdfs-project/hadoop-hdfs-httpfs/src/main/java/org/apache/hadoop/fs/http/server/HttpFSServer.java:[407,36] incompatible types; no instance(s) of type variable(s) V exist so that V conforms to boolean Indeed at line 407 I see: boolean hasData = params.get(DataParam.NAME, DataParam.class); When I change that to Boolean hasData = params.get(DataParam.NAME, DataParam.class); instead (along with long to Long, short to Short, etc, later in that file), everything compiles fine. $ javac -version javac 1.6.0_24 $ java -version java version "1.6.0_24" OpenJDK Runtime Environment (IcedTea6 1.11.3) (fedora-67.1.11.3.fc16-x86_64) OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode) Apparently OpenJDK gets mixed up on the type inference here. Can we change this in the way I suggest so that Hadoop-2 (and presumably trunk) can be compiled with OpenJDK? I'm happy to create a jira and (trivial) patch. Thanks. -- Lars
