[GROOVY-4037] GroovyClassLoader leaves file handles open

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.7.1
• Component/s: class generator
• Environment: any
• Assignee: Jochen Theodorou
• Reporter: Alexander Veit
• Created: 04/Feb/10 06:21
• Updated: 17/Feb/10 13:01
• Resolved: 17/Feb/10 10:03

Description

GroovyClassLoader leaves file handles open.

We use Groovy scripts within an application server. On systems that protect open files with locks (e.g. Windows) this bug prevents Groovy scripts from being redeployed.

The following code shows the problem:

public void test() throws Exception
{
  final File              l_fileScript;
  final GroovyClassLoader l_ldr;
  final GroovyCodeSource  l_cs;
  final Class<?>          l_classScript;

  l_fileScript = new File("path/to/script1944A6CADCE5EBA2BE66D50EA1D8AE36562C645E.groovy");

  l_ldr = new GroovyClassLoader();

  l_cs = new GroovyCodeSource(l_fileScript);

  l_cs.setCachable(false);

  l_classScript = l_ldr.parseClass(l_cs);

  return; // set breakpoint here
}

At the breakpoint the handle of the script file is still open.