[HBASE-16370] Exclude jdk tools.jar from Bytecode Version enforcer

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.2.2
• Assignee: Unassigned
• Reporter: Jerry He
• Created: 07/Aug/16 19:04
• Updated: 24/Jun/22 18:25
• Resolved: 03/Oct/16 20:37

Description

Getting this message trying to do a build with -Prelease:

[INFO] Restricted to JDK 1.7 yet jdk.tools:jdk.tools:jar:1.8:system contains org/relaxng/datatype/DatatypeLibrary.class targeted to JDK 1.8
[WARNING] Rule 3: org.apache.maven.plugins.enforcer.EnforceBytecodeVersion failed with message:
HBase has unsupported dependencies.
  HBase requires that all dependencies be compiled with version 1.7 or earlier
  of the JDK to properly build from source.  You appear to be using a newer dependency. You can use
  either "mvn -version" or "mvn enforcer:display-info" to verify what version is active.
  Non-release builds can temporarily build with a newer JDK version by setting the
  'compileSource' property (eg. mvn -DcompileSource=1.8 clean package).
Found Banned Dependency: jdk.tools:jdk.tools:jar:1.8
Use 'mvn dependency:tree' to locate the source of the banned dependencies.
[INFO] ------------------------------------------------------------------------

My JDK is 1.8. But I wanted to build to target 1.7. So I didn't' have the -DcompileSource=1.8.

The enforcer checks the jdk tools.jar and causes the error because the system JDK is 1.8.

This is a valid build/release use case as long as we support both 1.8 and 1.7.

We should exclude jdk tools.jar from the enforcer.

Issue Links

• is related to: HBASE-13344 Add enforcer rule that matches our JDK support statement
• is related to: HBASE-13747 Promote Java 8 to "yes" in support matrix