this.fileBackedStreamFactory = builder.fileBackedStreamFactory;
this.messageSliceSize = builder.messageSliceSize;
this.maxSlicingTries = builder.maxSlicingTries;
this.fileBackedStreamFactory = builder.fileBackedStreamFactory;
this.messageSliceSize = builder.messageSliceSize;
this.maxSlicingTries = builder.maxSlicingTries;