[FLINK-13460] Rework SerializedThrowableTest to not use Unsafe.defineClass()

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0
• Component/s: Tests
• Labels: pull-request-available
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 29/Jul/19 07:56
• Updated: 02/Oct/19 17:45
• Resolved: 16/Aug/19 08:32

Description

 
The method Unsafe.defineClass() is removed in Java 11.
To support Java 11, we need to rework the method CommonTestUtils.createClassNotInClassPath() to use a different mechanism.

Java 11 introduces a new way to define a class from byte code via MethodHandles. However, because these do not exist in Java 8, we cannot use them if we want to keep supporting Java 8, which we most likely want to do for quite a while.

Issue Links

• is related to: FLINK-13451 Rework CommonTestUtils.createClassNotInClassPath() to not use Unsafe.defineClass()
• is related to: FLINK-13650 Consolidate classloading utils from CommonTestUtils with ClassLoaderUtils
• links to: GitHub Pull Request #9258