code: void setPart(int accessor, JMFSchema schema) {
      try {
        jmfPart.setValue(accessor, jmfPart.newNativePart(schema));
      } catch (JMFException e) {
        FFDCFilter.processException(e, "setDynamicField", "196", this);
        if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(this, tc, "setDynamicField failed: " + e);
      }
    }
docs: Set a dynamic field to an empty message of appropriate type