code: @Override
      public void clearAll() {
          synchronized (this) {
              if (isActive()) {
                  deactivateAll();
              }
              activeStore.remove();
              for (Map.Entry<T, ObjectStore> entry : stores.entrySet()) {
                  entry.getValue().clear();
              }
              stores.clear();
          }
      }
docs: /* (non-Javadoc)
  @see org.jboss.arquillian.core.spi.context.Context#clearAll()