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https://issues.apache.org/jira/browse/SPARK-16535 ## What changes were proposed in this pull request? When I scan through the pom.xml of sub projects, I found this warning as below and attached screenshot ``` Definition of groupId is redundant, because it's inherited from the parent ``` ![screen shot 2016-07-13 at 3 13 11 pm](https://cloud.githubusercontent.com/assets/3925641/16823121/744f893e-4916-11e6-8a52-042f83b9db4e.png) I've tried to remove some of the lines with groupId definition, and the build on my local machine is still ok. ``` <groupId>org.apache.spark</groupId> ``` As I just find now `<maven.version>3.3.9</maven.version>` is being used in Spark 2.x, and Maven-3 supports versionless parent elements: Maven 3 will remove the need to specify the parent version in sub modules. THIS is great (in Maven 3.1). ref: http://stackoverflow.com/questions/3157240/maven-3-worth-it/3166762#3166762 ## How was this patch tested? I've tested by re-building the project, and build succeeded. Author: Xin Ren <iamshrek@126.com> Closes #14189 from keypointt/SPARK-16535. |
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pom.xml | ||
README.md |
Java 8 Test Suites
These tests require having Java 8 installed and are isolated from the main Spark build. If Java 8 is not your system's default Java version, you will need to point Spark's build to your Java location. The set-up depends a bit on the build system:
-
Sbt users can either set JAVA_HOME to the location of a Java 8 JDK or explicitly pass
-java-home
to the sbt launch script. If a Java 8 JDK is detected sbt will automatically include the Java 8 test project.`$ JAVA_HOME=/opt/jdk1.8.0/ build/sbt clean java8-tests/test
-
For Maven users,
Maven users can also refer to their Java 8 directory using JAVA_HOME.
$ JAVA_HOME=/opt/jdk1.8.0/ mvn clean install -DskipTests
$ JAVA_HOME=/opt/jdk1.8.0/ mvn -pl :java8-tests_2.11 test
Note that the above command can only be run from project root directory since this module depends on core and the test-jars of core and streaming. This means an install step is required to make the test dependencies visible to the Java 8 sub-project.