開発途中版5で完了したけどエラー出てたので貼り付け。
短めだとでないので長めのを選んで（配信アニメだとでた）。

error: chunkavDir==null
+
java.lang.NullPointerException: Cannot invoke "java.io.File.exists()" because "this.chunkavDir" is null
	at dareka.processor.impl.CmafCachingProcessor$ChunkListener.(CmafCachingProcessor.java:1034)
	at dareka.processor.impl.CmafCachingProcessor.processChunk(CmafCachingProcessor.java:941)
	at dareka.processor.impl.CmafCachingProcessor.onRequest(CmafCachingProcessor.java:219)
	at dareka.ConnectionManager.processAPairOfMessages(ConnectionManager.java:328)
	at dareka.ConnectionManager.run(ConnectionManager.java:66)
	at dareka.Server.handleTlsLoopback(Server.java:343)
	at dareka.Main.handleTlsLoopback(Main.java:310)
	at dareka.processor.MitmResource.transferTo(MitmResource.java:26)
	at dareka.ConnectionManager.useResource(ConnectionManager.java:531)
	at dareka.ConnectionManager.processAPairOfMessages(ConnectionManager.java:349)
	at dareka.ConnectionManager.run(ConnectionManager.java:66)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:857)

+
failed to process: https://asset.domand.nicovideo.jp/65efceef6864fc306f4826f7/audio/1/audio-aac-192kbps/001.cmfa?session=（削除）&Policy=（削除）&Signature=（削除）&Key-Pair-Id=（削除）&nicocachenl_domandcvikey=（削除）
	java.lang.NullPointerException: Cannot invoke "java.io.File.exists()" because "this.chunkavDir" is null
	at dareka.processor.impl.CmafCachingProcessor$ChunkListener.(CmafCachingProcessor.java:1034)
	at dareka.processor.impl.CmafCachingProcessor.processChunk(CmafCachingProcessor.java:941)
	at dareka.processor.impl.CmafCachingProcessor.onRequest(CmafCachingProcessor.java:219)
	at dareka.ConnectionManager.processAPairOfMessages(ConnectionManager.java:328)
	at dareka.ConnectionManager.run(ConnectionManager.java:66)
	at dareka.Server.handleTlsLoopback(Server.java:343)
	at dareka.Main.handleTlsLoopback(Main.java:310)
	at dareka.processor.MitmResource.transferTo(MitmResource.java:26)
	at dareka.ConnectionManager.useResource(ConnectionManager.java:531)
	at dareka.ConnectionManager.processAPairOfMessages(ConnectionManager.java:349)
	at dareka.ConnectionManager.run(ConnectionManager.java:66)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:857)

いまのところaudio側にだけでる。三桁くりかえしたあとcompletedもでないんだけど、自動リピートで最初に戻ったらusing cacheになって、キャッシュが完了してた。

参考までに。