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From Suneel Marthi <suneel.mar...@gmail.com>
Subject Re: Build error with Flink
Date Thu, 30 Oct 2014 13:11:32 GMT
It shuld happen as Java 6 is nearing EOL

Sent from my iPhone

> On Oct 30, 2014, at 9:00 AM, Stephan Ewen <sewen@apache.org> wrote:
> 
> BTW: There is a discussion to bump the required version to java 7. Decision
> pending...
> 
>> On Thu, Oct 30, 2014 at 2:00 PM, Stephan Ewen <sewen@apache.org> wrote:
>> 
>> I think it also works with openJDK 6, just not with OracleJDK 6 . The
>> problem you encounter is a known bug in Oracle JDK 6, but will not be fixed
>> since they stopped supporting java 6.
>> 
>> To run it, java 6 is also fine, it is really only a limitation in the
>> oracle  java 6 compiler.
>> 
>> 
>> On Thu, Oct 30, 2014 at 12:47 PM, Suneel Marthi <smarthi@apache.org>
>> wrote:
>> 
>>> Scratch that. It does work with Java 7.  I think Java 7 should be made
>>> mandatory??
>>> 
>>> On Thu, Oct 30, 2014 at 7:43 AM, Suneel Marthi <suneel.marthi@gmail.com>
>>> wrote:
>>> 
>>>> I am using Java 7. This is from
>>> https://github.com/apache/incubator-flink,
>>>> was I looking in the wrong place ?
>>>> 
>>>> 
>>>>> On Thu, Oct 30, 2014 at 5:40 AM, Stephan Ewen <sewen@apache.org>
wrote:
>>>>> 
>>>>> Hey Suneel!
>>>>> 
>>>>> Which branch are you referring to?
>>>>> 
>>>>> Also, which Java Version do you use? Java 6 (earlier versions) has some
>>>>> limitations to matching generic method signatures and cannot identify
>>> the
>>>>> correct overriding method.
>>>>> 
>>>>> Stephan
>>>>> 
>>>>> 
>>>>> Am 30.10.2014 10:06 schrieb "Suneel Marthi" <suneel.marthi@gmail.com>:
>>>>> 
>>>>>> Trying to build the project via 'mvn clean package', the build fails
>>>>> always
>>>>>> with the folllowing error:
>>>>>> 
>>>>>> [ERROR] Failed to execute goal
>>>>>> org.apache.maven.plugins:maven-compiler-plugin:3.1:compile
>>>>>> (default-compile) on project flink-java: Compilation failure
>>>>>> [ERROR]
>>> /Users/smarthi/opensourceprojects/incubator-flink/flink-java/src/main/java/org/apache/flink/api/java/operators/CoGroupOperator.java:[56,8]
>>>>>> org.apache.flink.api.java.operators.CoGroupOperator is not abstract
>>> and
>>>>>> does not override abstract method
>>> translateToDataFlow(org.apache.flink.api.common.operators.Operator<IN1>,org.apache.flink.api.common.operators.Operator<IN2>)
>>>>>> in org.apache.flink.api.java.operators.TwoInputOperator
>>>>>> 
>>>>>> 
>>>>>> Am I missing something here?
>> 
>> 

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