[HADOOP-8713] TestRPCCompatibility fails intermittently with JDK7

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.2-alpha
• Fix Version/s: 2.0.3-alpha
• Component/s: test
• Labels: java7

Environment

Apache Maven 3.0.4
Maven home: /usr/share/maven
Java version: 1.7.0_04, vendor: Oracle Corporation
Java home: /usr/lib/jvm/jdk1.7.0_04/jre
Default locale: en_US, platform encoding: ISO-8859-1
OS name: "linux", version: "3.2.0-25-generic", arch: "amd64", family: "unix"

• Target Version/s: 2.0.3-alpha
• Assignee: Trevor Robinson
• Reporter: Trevor Robinson
• Created: 20/Aug/12 22:22
• Updated: 03/Sep/14 23:11
• Resolved: 26/Oct/12 21:05

Description

TestRPCCompatibility can fail intermittently with errors like the following when tests are not run in declaration order:

testVersion2ClientVersion1Server(org.apache.hadoop.ipc.TestRPCCompatibility): expected:<3> but was:<-3>

Moving the reset of the ProtocolSignature cache from ad-hoc usage in testVersion2ClientVersion2Server to tearDown fixes the issue.