Java SE (Java Platform, Standard Edition)

Hi everyone!

How can i delete the java runtime parameters in the java plugin within
a small java programm?
What class do i have to take? I am very new in the java programming.
My problem is that an other java programm (not mine) always writes a parameter in the runtime parameter field when an error occured.
Is that parameter in the field the java programm doesn't start anymore.
Now i have to delete that entry manually of the runtimeparameter field.

Now i want to write a small java programm which delete all entries of the runtimeparameter field.
Which command do i need?

Can someone help me?
Thanks