BaseManifestPutter$PutHandler.start

// From line 419 of https://github.com/freenet/fred/blob/next/src/freenet/client/async/BaseManifestPutter.java
        public void start(ClientContext context) throws InsertException {
420             //new Error("trace start "+this).printStackTrace();
421             if (logDEBUG)
422                 Logger.debug(this, "Starting a PutHandler for '"+this.itemName+"' "+ this);
423

424             if (origSFI == null) {
425                 fail(new IllegalStateException("origSFI is null on start(), impossible"), context);
426             }
427

428             if ((!(this instanceof MetaPutHandler)) && (metadata != null)) {
429                 fail(new IllegalStateException("metdata=" + metadata + " on start(), impossible"), context);
430             }
431

432             boolean ok;
433             if ((this instanceof ContainerPutHandler) || (this instanceof ArchivePutHandler)) {
434                 if (this != rootContainerPutHandler) {
435                     synchronized (containerPutHandlers) {
436                         ok = containerPutHandlers.contains(this);
437                     }
438                     if (!ok) {
439                         throw new IllegalStateException("Starting a PutHandler thats not in 'containerPutHandlers'! "+this);
440                     }
441                 }
442             } else {
443                 if (this != rootMetaPutHandler) {
444                     synchronized (runningPutHandlers) {
445                         ok = runningPutHandlers.contains(this);
446                     }
447                     if (!ok) {
448                         throw new IllegalStateException("Starting a PutHandler thats not in 'runningPutHandlers'! "+this);
449                     }
450                 }
451             }
452

453             synchronized (putHandlerWaitingForBlockSets) {
454                 ok = putHandlerWaitingForBlockSets.contains(this);
455             }
456             if (!ok) {
457                 Logger.error(this, "Starting a PutHandler thats not in 'waitingForBlockSets'! "+this, new Error("error"));
458                 //throw new IllegalStateException("Starting a PutHandler thats not in 'waitingForBlockSets'! "+this);
459             }
460

461             ClientPutState sfi;
462             synchronized(this) {
463                 sfi = origSFI;
464                 currentState = sfi;
465                 origSFI = null;
466             }
467             sfi.schedule(context);
468         }
469

470         @Override