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Posted to common-dev@hadoop.apache.org by "Yang Jiandan (JIRA)" <ji...@apache.org> on 2012/07/18 05:45:34 UTC
[jira] [Created] (HADOOP-8605)
TestReflectionUtils.testCacheDoesntLeak() can't illustrate ReflectionUtils
don't generate memory leak
Yang Jiandan created HADOOP-8605:
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Summary: TestReflectionUtils.testCacheDoesntLeak() can't illustrate ReflectionUtils don't generate memory leak
Key: HADOOP-8605
URL: https://issues.apache.org/jira/browse/HADOOP-8605
Project: Hadoop Common
Issue Type: Bug
Components: test
Affects Versions: 1.0.3
Reporter: Yang Jiandan
TestReflectionUtils.testCacheDoesntLeak() uses different urlClassLoader to load TestReflectionUtils$LoadedInChild by a for cycle:
int iterations=9999; // very fast, but a bit less reliable - bigger numbers force GC
for (int i=0; i<iterations; i++) {
URLClassLoader loader = new URLClassLoader(new URL[0], getClass().getClassLoader());
Class cl = Class.forName("org.apache.hadoop.util.TestReflectionUtils$LoadedInChild", false, loader);
Object o = ReflectionUtils.newInstance(cl, null);
assertEquals(cl, o.getClass());
}
but every time it generate the same class
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