[GROOVY-7646] Classes generated by Eval() never collected from Permgen/Metaspace

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.5
• Fix Version/s: 2.4.10
• Component/s: groovy-runtime
• Environment: Oracle jdk8u51 and jdk8u66
• Assignee: Unassigned
• Reporter: Isaac Dooley
• Created: 23/Oct/15 18:21
• Updated: 24/May/17 06:29
• Resolved: 12/Apr/17 20:13

Description

It seems classes generated by Eval() are never collected, thus causing PermGen or Metaspace to fill up and the JVM to hang/crash.
Reproduce by running the following code, after setting java option -XX:MaxMetaspaceSize=50m.

100000.times{ x -> assert 10 == Eval.x(2, 'x * 4 + 2;') }

After about 2700 calls to Eval the program will crash with OutOfMemoryError,

Issue Links

• is duplicated by: GROOVY-6136 Possibly memory leak in Eval with PathExpression
• is related to: GROOVY-8189 OutOfMemoryError with groovy.use.classvalue=false
• is related to: GROOVY-8199 Re-enable use of ClassValue for all JDKs
• relates to: GROOVY-7683 Memory leak when using Groovy as JSR-223 scripting language.
• links to: GitHub Pull Request #325
• links to: GitHub Pull Request #444
• links to: GitHub Pull Request #445