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https://issues.apache.org/jira/browse/FLINK-7251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110509#comment-16110509
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ASF GitHub Bot commented on FLINK-7251:
---------------------------------------
Github user zentol commented on the issue:
https://github.com/apache/flink/pull/4455
There's a compilation failure in flink-tests:
```
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
(default-testCompile) on project flink-tests_2.11: Compilation failure:
Compilation failure:
[ERROR]
/home/travis/build/apache/flink/flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/StateBackendITCase.java:[67]
[ERROR] .map(new RichMapFunction<Tuple2<String, Integer>, String>() {
[ERROR] ^^^
[ERROR] The method map(MapFunction<Tuple2<String,Object>,R>) in the type
DataStream<Tuple2<String,Object>> is not applicable for the arguments (new
RichMapFunction<Tuple2<String,Integer>,String>(){})
[ERROR]
/home/travis/build/apache/flink/flink-tests/src/test/java/org/apache/flink/test/example/client/JobRetrievalITCase.java:[99]
[ERROR] final ActorSystem actorSystem = actorSystemSeq.last();
[ERROR] ^^^^
[ERROR] The method last() is ambiguous for the type Seq<ActorSystem>
```
> Merge the flink-java8 project into flink-core
> ---------------------------------------------
>
> Key: FLINK-7251
> URL: https://issues.apache.org/jira/browse/FLINK-7251
> Project: Flink
> Issue Type: Sub-task
> Components: Build System
> Reporter: Stephan Ewen
> Assignee: Fang Yong
> Fix For: 1.4.0
>
>
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