[HBASE-5261] Update HBase for Java 7

• Type: Umbrella
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Assignee: Mikhail Gryzykhin
• Reporter: Mikhail Gryzykhin
• Created: 23/Jan/12 19:24
• Updated: 11/Jun/22 23:16
• Resolved: 04/Sep/13 22:26

Description

We need to make sure that HBase compiles and works with JDK 7. Once we verify it is reasonably stable, we can explore utilizing the G1 garbage collector. When all deployments are ready to move to JDK 7, we can start using new language features, but in the transition period we will need to maintain a codebase that compiles both with JDK 6 and JDK 7.

Issue Links

• incorporates: HBASE-6182 Make HBase works with jdk1.7

Sub-Tasks

• Allow HBase to compile against JDK7: Closed
• G1 GC issues: Closed
• String and ConcurrentHashMap sizes change on jdk7; makes TestHeapSize fail; second attempt: Closed
• Trunk jdk7 build broke because we moved to zk 3.4.4: Closed
• TestGzipFilter is flaky with jdk1.7: Closed