Add custom class loader that does not leave open file locks
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Key: GERONIMO-1979
URL: http://issues.apache.org/jira/browse/GERONIMO-1979
Project: Geronimo
Type: New Feature
Security: public (Regular issues)
Versions: 1.0
Reporter: Dain Sundstrom
Assigned to: Dain Sundstrom
Fix For: 1.1
We need a new class loader that does not leave open file locks when destroyed.
The URLClassLoader will only close the jar files and subsequently release the
file locks, when it is garbage collected. It is common for programming mistake
to leak references to classes (even the JVM has several leaks), and these
leaked classes have hard references to the class loader which prevent the class
loader from being garbage collected. On Windows the jar files referred to by a
URLClassLoader can not be modified or deleted until the class loader is garbage
collected which in too many cases means JVM exits. This prevents redeployment
from working since, the directory can not be deleted.
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