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shane knapp commented on SPARK-1437: ------------------------------------ shouldn't be too much work... i can get a 1.6 dist downloaded and synced out to the workers in no time and then you can set a specific JAVA_HOME for the java 6 builds. in a perfect world, i'd use the built-in JDK management, but that doesn't allow us to specify java versions for matrix projects. :( anyways, let me get the JDK installed and deployment scripts updated. > Jenkins should build with Java 6 > -------------------------------- > > Key: SPARK-1437 > URL: https://issues.apache.org/jira/browse/SPARK-1437 > Project: Spark > Issue Type: Bug > Components: Build, Project Infra > Affects Versions: 0.9.0 > Reporter: Sean Owen > Assignee: shane knapp > Priority: Minor > Labels: javac, jenkins > Attachments: Screen Shot 2014-04-07 at 22.53.56.png > > > Apologies if this was already on someone's to-do list, but I wanted to track > this, as it bit two commits in the last few weeks. > Spark is intended to work with Java 6, and so compiles with source/target > 1.6. Java 7 can correctly enforce Java 6 language rules and emit Java 6 > bytecode. However, unless otherwise configured with -bootclasspath, javac > will use its own (Java 7) library classes. This means code that uses classes > in Java 7 will be allowed to compile, but the result will fail when run on > Java 6. > This is why you get warnings like ... > Using /usr/java/jdk1.7.0_51 as default JAVA_HOME. > ... > [warn] warning: [options] bootstrap class path not set in conjunction with > -source 1.6 > The solution is just to tell Jenkins to use Java 6. This may be stating the > obvious, but it should just be a setting under "Configure" for > SparkPullRequestBuilder. In our Jenkinses, JDK 6/7/8 are set up; if it's not > an option already I'm guessing it's not too hard to get Java 6 configured on > the Amplab machines. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org