for (int i = 0; i < assistants.length; i++) {
            final CommonDropAdapterAssistant localAssistant = assistants[i];// <- gets all the assistants, our assistant comes at 1 index where as default ResourceDropAdapterAssistant at 0th in this array.

            SafeRunner.run(new NavigatorSafeRunnable() {
                public void run() throws Exception {
                    localAssistant.setCurrentEvent(event);
                    IStatus valid = localAssistant.validateDrop(target, getCurrentOperation(),
                            getCurrentTransfer());
                    if (valid != null && valid.isOK()) {
                        if (Policy.DEBUG_DND) {
                            System.out
                                    .println("CommonDropAdapter.drop assistant selected: " + localAssistant + " op: " + event.detail); //$NON-NLS-1$ //$NON-NLS-2$
                        }
                        localAssistant.handleDrop(CommonDropAdapter.this, event, target);
                        retValue[0] = true;//<- for the 0th assisstant ResourceDropAdapterAssistant code gets validated and sets this value true.                    }
                }
            });
            if (retValue[0])//<- so without executing the next dropAssistant i.e ours, the loop exits.
                return true;
        }