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From "Matthias J. Sax" <mj...@informatik.hu-berlin.de>
Subject Re: Questions about flink-streaming-examples
Date Thu, 26 Feb 2015 09:11:35 GMT
Thanks for clarifying Marton!

I was on the latest build already. However, my local maven repository
contained old jars. After removing all flink-jars from my local maven
repository it works!

Why does maven no automatically update the local repository?


-Matthias



On 02/26/2015 09:20 AM, Márton Balassi wrote:
> Dear Mathias,
> 
> Thanks for reporting the issue. I have successfully built
> flink-streaming-examples with maven, you can depend on test classes, the
> following in the pom does the trick:
> 
> <dependency>
>   <groupId>org.apache.flink</groupId>
>   <artifactId>flink-streaming-core</artifactId>
>   <version>${project.version}</version>
>   <scope>test</scope>
>   <classifier>tests</classifier>
> </dependency>
> 
> This tells maven that the test classes of the examples (scope) might depend
> on the tests of the core (classifier). Without explicitly stating the tests
> classifier indeed maven only uses the classes under src/main.
> 
> I think the problem occurred because you only built
> flink-streaming-examples and you might have used an outdated version of the
> flink-streaming-core as a dependency installed to your local maven
> repository - which did not include the StreamingTestBase yet. The change
> that we are talking is about a week old, I wrote it.
> 
> Kind regards,
> 
> Marton
> 
> On Thu, Feb 26, 2015 at 9:04 AM, Matthias J. Sax <
> mjsax@informatik.hu-berlin.de> wrote:
> 
>> Hi,
>>
>> I just build "flink-streaming" and avoid the problem. I guess, that the
>> issue is related to the module structure and dependencies.
>> "flink-streaming-examples" uses
>> org.apache.flink.streaming.util.StreamingProgramTestBase (that is
>> defined in "flink-streaming-core/src/TEST"
>>
>> From my understanding, maven does not support dependencies into src/test
>> but only into src/main (maybe I am wrong about this).
>>
>> I would suggest, to move StreamingProgramTestBase into a new module
>> "flink-streaming-testUtils" (into src/main) and change the dependency of
>> flink-streaming-examples accordingly.
>>
>> Why the build work on the parent-project, is still a riddle to me... But
>> it seems that the dependency into scr/test can be resolved for this case.
>>
>>
>> -Matthias
>>
>>
>>
>>
>> On 02/25/2015 06:12 PM, Dulaj Viduranga wrote:
>>> Hi,
>>> Were you able to solve this? It seams the examples depend on
>> "flink-streaming-core”. I think you have to build it before.
>>>
>>>> On Feb 25, 2015, at 10:04 PM, Matthias J. Sax <
>> mjsax@informatik.hu-berlin.de> wrote:
>>>>
>>>> Thanks!
>>>>
>>>> Even if I am not a building and/or maven expert, it seems to me that the
>>>> dependencies are not configures correctly... No clue how to fix it. But
>>>> it might be a good idea to have a look into it IMHO.
>>>>
>>>> -Matthias
>>>>
>>>>
>>>> On 02/25/2015 05:07 PM, Stephan Ewen wrote:
>>>>> Hi Matthias!
>>>>>
>>>>> Can you try "mvn clean package"? It package is generally preferable to
>>>>> compile, in my opinion.
>>>>>
>>>>> There may be a dependency through a test jar that is not properly
>> handled
>>>>> when you do not execute the package goal.
>>>>>
>>>>> Stephan
>>>>> Am 25.02.2015 16:54 schrieb "Max Michels" <mxm@apache.org>:
>>>>>
>>>>>> Hi Matthias,
>>>>>>
>>>>>> Did you really pull from the latest master? I just tried to compile
>>>>>> flink-streaming-examples using "mvn clean compile test-compile" and
it
>>>>>> worked.
>>>>>>
>>>>>> Best regards,
>>>>>> Max
>>>>>>
>>>>>> On Wed, Feb 25, 2015 at 4:13 PM, Matthias J. Sax
>>>>>> <mjsax@informatik.hu-berlin.de> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> I tried to build flink-streaming-examples, but got an compilation
>> error.
>>>>>>> If I build flink-streaming (that implicitly builds
>>>>>>> flink-streaming-examples), it works.
>>>>>>>
>>>>>>> I tried it on a fresh clone of flink/master using "mvn clean
compile
>>>>>>> test-compile"
>>>>>>>
>>>>>>> Can anybody explain this behavior?
>>>>>>>
>>>>>>>
>>>>>>> -Matthias
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> mjsax@T420s-dbis-mjsax
>> :~/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples$
>>>>>> mvn clean compile test-compile
>>>>>>>> [INFO] Scanning for projects...
>>>>>>>> [WARNING]
>>>>>>>> [WARNING] Some problems were encountered while building the
>> effective
>>>>>> model for org.apache.flink:flink-streaming-examples:jar:0.9-SNAPSHOT
>>>>>>>> [WARNING] 'build.plugins.plugin.(groupId:artifactId)' must
be unique
>>>>>> but found duplicate declaration of plugin
>>>>>> org.apache.maven.plugins:maven-jar-plugin @ line 462, column 12
>>>>>>>> [WARNING]
>>>>>>>> [WARNING] It is highly recommended to fix these problems
because
>> they
>>>>>> threaten the stability of your build.
>>>>>>>> [WARNING]
>>>>>>>> [WARNING] For this reason, future Maven versions might no
longer
>>>>>> support building such malformed projects.
>>>>>>>> [WARNING]
>>>>>>>> [INFO]
>>>>>>>> [INFO]
>>>>>>
>> ------------------------------------------------------------------------
>>>>>>>> [INFO] Building flink-streaming-examples 0.9-SNAPSHOT
>>>>>>>> [INFO]
>>>>>>
>> ------------------------------------------------------------------------
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Deleting
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/target
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-checkstyle-plugin:2.12.1:check (validate)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-enforcer-plugin:1.3.1:enforce (enforce-maven)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- build-helper-maven-plugin:1.7:add-source (add-source)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Source directory:
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/scala
>>>>>> added.
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-remote-resources-plugin:1.5:process (default)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-resources-plugin:2.6:resources (default-resources)
>> @
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Using 'UTF-8' encoding to copy filtered resources.
>>>>>>>> [INFO] skip non existing resourceDirectory
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/resources
>>>>>>>> [INFO] Copying 3 resources
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- scala-maven-plugin:3.1.4:compile (scala-compile-first)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/java:-1:
>>>>>> info: compiling
>>>>>>>> [INFO]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/scala:-1:
>>>>>> info: compiling
>>>>>>>> [INFO] Compiling 14 source files to
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/target/classes
>>>>>> at 1424877113889
>>>>>>>> [INFO] compiler plugin:
>>>>>> BasicArtifact(org.scalamacros,paradise_2.10.4,2.0.1,null)
>>>>>>>> [WARNING] warning: there were 1 deprecation warning(s); re-run
with
>>>>>> -deprecation for details
>>>>>>>> [WARNING] one warning found
>>>>>>>> [INFO] prepare-compile in 0 s
>>>>>>>> [INFO] compile in 10 s
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-compiler-plugin:3.1:compile (default-compile)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Changes detected - recompiling the module!
>>>>>>>> [INFO] Compiling 10 source files to
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/target/classes
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-checkstyle-plugin:2.12.1:check (validate)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-enforcer-plugin:1.3.1:enforce (enforce-maven)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- build-helper-maven-plugin:1.7:add-source (add-source)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Source directory:
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/scala
>>>>>> added.
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-remote-resources-plugin:1.5:process (default)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-resources-plugin:2.6:resources (default-resources)
>> @
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Using 'UTF-8' encoding to copy filtered resources.
>>>>>>>> [INFO] skip non existing resourceDirectory
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/main/resources
>>>>>>>> [INFO] Copying 3 resources
>>>>>>>> [INFO] Copying 3 resources
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- scala-maven-plugin:3.1.4:compile (scala-compile-first)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Nothing to compile - all classes are up to date
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-compiler-plugin:3.1:compile (default-compile)
@
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO] Nothing to compile - all classes are up to date
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- build-helper-maven-plugin:1.7:add-test-source
>>>>>> (add-test-source) @ flink-streaming-examples ---
>>>>>>>> [INFO] Test Source directory:
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/scala
>>>>>> added.
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-resources-plugin:2.6:testResources
>>>>>> (default-testResources) @ flink-streaming-examples ---
>>>>>>>> [INFO] Using 'UTF-8' encoding to copy filtered resources.
>>>>>>>> [INFO] skip non existing resourceDirectory
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/resources
>>>>>>>> [INFO] Copying 3 resources
>>>>>>>> [INFO] Copying 3 resources
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- scala-maven-plugin:3.1.4:testCompile
>> (scala-test-compile) @
>>>>>> flink-streaming-examples ---
>>>>>>>> [INFO]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java:-1:
>>>>>> info: compiling
>>>>>>>> [INFO] Compiling 2 source files to
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/target/test-classes
>>>>>> at 1424877127030
>>>>>>>> [INFO] compiler plugin:
>>>>>> BasicArtifact(org.scalamacros,paradise_2.10.4,2.0.1,null)
>>>>>>>> [INFO] prepare-compile in 0 s
>>>>>>>> [INFO] compile in 1 s
>>>>>>>> [INFO]
>>>>>>>> [INFO] --- maven-compiler-plugin:3.1:testCompile
>> (default-testCompile)
>>>>>> @ flink-streaming-examples ---
>>>>>>>> [INFO] Changes detected - recompiling the module!
>>>>>>>> [INFO] Compiling 2 source files to
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/target/test-classes
>>>>>>>> [INFO] -------------------------------------------------------------
>>>>>>>> [ERROR] COMPILATION ERROR :
>>>>>>>> [INFO] -------------------------------------------------------------
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[22,39]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   class StreamingProgramTestBase
>>>>>>>>  location: package org.apache.flink.streaming.util
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[25,40]
>>>>>> cannot find symbol
>>>>>>>>  symbol: class StreamingProgramTestBase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[23,39]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   class StreamingProgramTestBase
>>>>>>>>  location: package org.apache.flink.streaming.util
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[25,38]
>>>>>> cannot find symbol
>>>>>>>>  symbol: class StreamingProgramTestBase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[32,28]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method createTempFile(java.lang.String,java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[33,30]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method getTempDirPath(java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[30,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[38,17]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method
>>>>>> compareResultsByLinesInMemory(java.lang.String,java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[36,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[41,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[32,28]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method createTempFile(java.lang.String,java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[33,30]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method getTempDirPath(java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[30,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[38,17]
>>>>>> cannot find symbol
>>>>>>>>  symbol:   method
>>>>>> compareResultsByLinesInMemory(java.lang.String,java.lang.String)
>>>>>>>>  location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[36,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[41,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [INFO] 16 errors
>>>>>>>> [INFO] -------------------------------------------------------------
>>>>>>>> [INFO]
>>>>>>
>> ------------------------------------------------------------------------
>>>>>>>> [INFO] BUILD FAILURE
>>>>>>>> [INFO]
>>>>>>
>> ------------------------------------------------------------------------
>>>>>>>> [INFO] Total time: 22.807s
>>>>>>>> [INFO] Finished at: Wed Feb 25 16:12:08 CET 2015
>>>>>>>> [INFO] Final Memory: 45M/504M
>>>>>>>> [INFO]
>>>>>>
>> ------------------------------------------------------------------------
>>>>>>>> [ERROR] Failed to execute goal
>>>>>> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
>>>>>> (default-testCompile) on project flink-streaming-examples: Compilation
>>>>>> failure: Compilation failure:
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[22,39]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   class StreamingProgramTestBase
>>>>>>>> [ERROR] location: package org.apache.flink.streaming.util
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[25,40]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol: class StreamingProgramTestBase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[23,39]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   class StreamingProgramTestBase
>>>>>>>> [ERROR] location: package org.apache.flink.streaming.util
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[25,38]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol: class StreamingProgramTestBase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[32,28]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method
>>>>>> createTempFile(java.lang.String,java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[33,30]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method getTempDirPath(java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[30,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[38,17]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method
>>>>>> compareResultsByLinesInMemory(java.lang.String,java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.PojoExampleITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[36,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/PojoExampleITCase.java:[41,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[32,28]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method
>>>>>> createTempFile(java.lang.String,java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[33,30]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method getTempDirPath(java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[30,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[38,17]
>>>>>> cannot find symbol
>>>>>>>> [ERROR] symbol:   method
>>>>>> compareResultsByLinesInMemory(java.lang.String,java.lang.String)
>>>>>>>> [ERROR] location: class
>>>>>> org.apache.flink.streaming.examples.test.WordCountITCase
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[36,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR]
>>>>>>
>> /home/mjsax/workspace_flink/dummy/flink/flink-staging/flink-streaming/flink-streaming-examples/src/test/java/org/apache/flink/streaming/examples/test/WordCountITCase.java:[41,9]
>>>>>> method does not override or implement a method from a supertype
>>>>>>>> [ERROR] -> [Help 1]
>>>>>>>> [ERROR]
>>>>>>>> [ERROR] To see the full stack trace of the errors, re-run
Maven with
>>>>>> the -e switch.
>>>>>>>> [ERROR] Re-run Maven using the -X switch to enable full debug
>> logging.
>>>>>>>> [ERROR]
>>>>>>>> [ERROR] For more information about the errors and possible
>> solutions,
>>>>>> please read the following articles:
>>>>>>>> [ERROR] [Help 1]
>>>>>> http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>
>>
> 


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