public long addressSafe(Object value, int offset) {
        return value == null ? NULL : address(offset);
    }
Returns the memory address of the specified {@code offset} or
{@link MemoryUtil#NULL NULL} if the specified {@code value} is null. This
address may change after a call to one of the {@code <type>Param()}
methods.
jme3-lwjgl3/src/main/java/com/jme3/lwjgl3/utils/APIBuffer.java