compile error with current HEAD about cascading-flink HOT 4 CLOSED

Hi @fs111, you are right, the remove methods are missing.
I had set the source and compile level for Maven to Java 1.6, but had never problems building the project.Anyways, I added the missing methods and updated the master. Hope it builds now.
Thanks, Fabian

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I builds now. Thanks! (btw, it does not build with java 8, but that's not an issue right now)

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Hi @fs111! Which JDK and minor version are you using? It builds for me using Oracle 1.8.0_40.

from cascading-flink.

$ java -version
Picked up JAVA_TOOL_OPTIONS: -Djava.awt.headless=true
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

$ mvn clean install -DskipTests
Picked up JAVA_TOOL_OPTIONS: -Djava.awt.headless=true
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Cascading on Flink 0.1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ cascading-flink ---
[INFO] Deleting /Users/akelpe/code/thirdparty/cascading-flink/target
[INFO]
[INFO] --- maven-checkstyle-plugin:2.12.1:check (validate) @ cascading-flink ---
[INFO]
[INFO]
[INFO] --- maven-enforcer-plugin:1.3.1:enforce (enforce-maven) @ cascading-flink ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ cascading-flink ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 29 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ cascading-flink ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 70 source files to /Users/akelpe/code/thirdparty/cascading-flink/target/classes
[INFO] -------------------------------------------------------------
[WARNING] COMPILATION WARNING :
[INFO] -------------------------------------------------------------
[WARNING] Note: /Users/akelpe/code/thirdparty/cascading-flink/src/main/java/com/dataArtisans/flinkCascading/planner/FlinkPlanner.java uses or overrides a deprecated API.
[WARNING] Note: Recompile with -Xlint:deprecation for details.
[WARNING] Note: Some input files use unchecked or unsafe operations.
[WARNING] Note: Recompile with -Xlint:unchecked for details.
[INFO] 4 warnings
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/akelpe/code/thirdparty/cascading-flink/src/main/java/com/dataArtisans/flinkCascading/runtime/coGroup/bufferJoin/CoGroupBufferClosure.java:[361,59] cannot find symbol
symbol : method emptyIterator()
location: class java.util.Collections
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.750 s
[INFO] Finished at: 2015-08-28T15:35:28+02:00
[INFO] Final Memory: 27M/81M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project cascading-flink: Compilation failure
[ERROR] /Users/akelpe/code/thirdparty/cascading-flink/src/main/java/com/dataArtisans/flinkCascading/runtime/coGroup/bufferJoin/CoGroupBufferClosure.java:[361,59] cannot find symbol
[ERROR] symbol : method emptyIterator()
[ERROR] location: class java.util.Collections
[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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