Regarding Weak Refrence

Question

Dear All,
i am developing one application in jsp . i have been getting out of memory error in that,so i googled and found that using weakreference class will remove this,i have been implemented like this
XYZ xyzobj = null;
Reference ref = new WeakReference(new XYZ());
xyzobj = ref .get()
after completing my process i will set all thess object to null
xyzobj = null;
ref = null;
now also i am getting out of memory error.
is it right to set to null or i have to call clear() method or i can use SoftReference in which garbage collection takes place automatically when memory needed.
please suggest me

Answer 1

Sir i have tested with the java profiler but it tells all the objects cleared from heap in local server. but when i deploy this in production environment it give the same error.
now the problem is not available memory it has been set to more than enough what my application needs,but this object not removed from the heap always more than 90 percentage of memory remain in heap when i check the heap Dump.