Examples with WeakValueMap org.datanucleus.util.WeakValueMap used on opensource projects

Example 1 with WeakValueMap

use of org.datanucleus.util.WeakValueMap in project hive by apache.

the class ObjectStore method clearFieldMap.

private static long clearFieldMap(ClassLoaderResolverImpl clri, String mapFieldName) throws Exception {
    Field mapField = ClassLoaderResolverImpl.class.getDeclaredField(mapFieldName);
    mapField.setAccessible(true);
    Map<String, Class> map = (Map<String, Class>) mapField.get(clri);
    long sz = map.size();
    mapField.set(clri, Collections.synchronizedMap(new WeakValueMap()));
    return sz;
}