rmi中的java潜在内存泄漏

Question

我们有一个通过JMX监控的服务。JVM堆的使用率正在增长，即使是主要的集合也无法移除垃圾。检查堆会显示由RMI相关引用（如果不是全部的话，也大部分是相关的类装入器）组成的垃圾。缓解这个问题的唯一方法是通过JMX发出显式gc调用（这将删除所有累积的垃圾）。我们的gc相关选项包括：

-XX:+UseParNewGC
-XX:+UseConcMarkSweepGC
-XX:+CMSParallelRemarkEnabled
-XX:SurvivorRatio=8
-XX:MaxTenuringThreshold=1
-XX:CMSInitiatingOccupancyFraction=75
-XX:+UseCMSInitiatingOccupancyOnly

我们没有触及其中任何一个：DisableExplicitGC或sun。rmi。dgc。服务器gcInterval

我相信这个问题应该通过sun的代码来解决。杂项。GC。守护进程：

public void run() {
        for (;;) {
            long l;
            synchronized (lock) {

                l = latencyTarget;
                if (l == NO_TARGET) {
                    /* No latency target, so exit */
                    GC.daemon = null;
                    return;
                }

                long d = maxObjectInspectionAge();
                if (d >= l) {
                    /* Do a full collection.  There is a remote possibility
                     * that a full collection will occurr between the time
                     * we sample the inspection age and the time the GC
                     * actually starts, but this is sufficiently unlikely
                     * that it doesn't seem worth the more expensive JVM
                     * interface that would be required.
                     */
                    System.gc();
                    d = 0;
                }

                /* Wait for the latency period to expire,
                 * or for notification that the period has changed
                 */
                try {
                    lock.wait(l - d);
                } catch (InterruptedException x) {
                    continue;
                }
            }
        }
    }

由于某种原因，上述系统。没有调用gc（这已通过查看gc日志进行验证）。有人对如何解决这个问题有什么建议吗