[HADOOP-10530] Make hadoop trunk build on Java7+ only

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.6.0, 3.0.0-alpha1
• Fix Version/s: 2.7.0
• Component/s: build

Environment

Java 1.7+

• Target Version/s: 2.7.0
• Hadoop Flags: Incompatible change
• Assignee: Steve Loughran
• Reporter: Steve Loughran
• Created: 22/Apr/14 08:49
• Updated: 12/May/16 18:27
• Resolved: 08/Dec/14 15:32

Description

As discussed on hadoop-common, hadoop 3 is envisaged to be Java7+ only -this JIRA covers switching the build for this

1. maven enforcer plugin to set Java version = [1.7)
2. compiler to set language to java 1.7

Issue Links

• breaks: HADOOP-11363 Hadoop maven surefire-plugin uses must set heap size
• is blocked by: HADOOP-11246 Move jenkins to Java 7
• is depended upon by: HADOOP-9613 [JDK8] Update jersey version to latest 1.x release
• is duplicated by: HADOOP-10963 Move compile-time dependency to JDK7
• is duplicated by: HADOOP-11118 build hadoop by Java 7 in default
• is related to: HADOOP-11858 [JDK8] Set minimum version of Hadoop 3 to JDK 8
• relates to: HADOOP-9991 Fix up Hadoop POMs, roll up JARs to latest versions