ManagementUtils.java 文件源码

/**
 * @return an instance of {@link CompositeType}for the
 *         {@link MemoryNotificationInfo}class.
 */
private static CompositeType getMemoryNotificationInfoCompositeType() {
    if (MEMORYNOTIFICATIONINFO_COMPOSITETYPE == null) {
        String[] typeNames = { "poolName", "usage", "count" };
        String[] typeDescs = { "poolName", "usage", "count" };
        OpenType[] typeTypes = { SimpleType.STRING,
                getMemoryUsageCompositeType(), SimpleType.LONG };
        try {
            MEMORYNOTIFICATIONINFO_COMPOSITETYPE = new CompositeType(
                    MemoryNotificationInfo.class.getName(),
                    MemoryNotificationInfo.class.getName(), typeNames,
                    typeDescs, typeTypes);
        } catch (OpenDataException e) {
            if (ManagementUtils.VERBOSE_MODE) {
                e.printStackTrace(System.err);
            }// end if
        }
    }
    return MEMORYNOTIFICATIONINFO_COMPOSITETYPE;
}