jdb does not enable garbage collection for objects for which garbage collection was disable earlier by jdb 'disablegc' command.

To reproduce the problem next class was used.
Steps:
* disablegc for created WeakReference wr.
* enablegc for same object

import java.lang.ref.*;

class node {
    byte [] arr;
    node(int size){ arr = new byte[size]; }
}


class GC {
     
    public static void GenGarb() {
        int num = 50;
        SoftReference[] srArr = new SoftReference[num];
        WeakReference[] wrArr = new WeakReference[num];

        for (int j = 0;j < num;j++) {
            for (int i = 0;i < num;i++) {
                srArr[i] = new SoftReference(new node(90000));
                wrArr[i] = new WeakReference(new node(90000));
            }
            System.gc();
        }
    }
    

    public static void main(String args[]) {
        Runtime rt = Runtime.getRuntime();
        Reference rc;
        ReferenceQueue rq = new ReferenceQueue();
        WeakReference wr = new WeakReference(new node(20000), rq);
        node t;
        int count = 0;
        
        try {
            while (count++ < 10) {
                GenGarb();
                t = (node) wr.get();
                if (t == null) {
                    rc = rq.poll();
                    System.out.println("Object has been cleared.");
                    wr = new WeakReference(new node(200000), rq);
                } else {
                    rc = rq.poll();
                     System.out.println("Object is still in memory.");
                }
            }
        }catch (OutOfMemoryError e) {
            System.gc();
            System.out.println("Failed at the " + count +"th iteration.");
        }
    }
}