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?
