[GROOVY-802] GroovyClassLoader.parseClass(File) Not Closing Streams

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0-beta-10
• Fix Version/s: 1.0-JSR-4
• Component/s: class generator
• Environment: groovy-1.0-beta 10 on Linux
• Assignee: Jochen Theodorou
• Reporter: Ron Lancaster
• Created: 03/Apr/05 14:48
• Updated: 14/Nov/05 09:10
• Resolved: 14/Nov/05 09:10

Description

It appears that generating a class using GroovyClassLoader.parseClass(File) has the side effect of opening a stream on that file that is never closed. The result of this under load can be an exception (Too Many Files Open) on Linux - may affect other OSes.

In contrast and as a workaround, creating a FileInputStream on the file, invoking GroovyClassLoader.parseClass(InputStream, String(File.getAbsolutePath())), and subsequently closing the stream does not appear to have any ill side effects.

My test case was roughly 5 instances of an application which uses 95 generated classes per instance on SUSE 9.0.