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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Support unpacking HeapByteBfuferR","articleBody":"Currently `MessagePack.newDefaultUnpacker(ByteBuffer buffer)` doesn't support HeapByteBuffer\r\n\r\nWhen passing Read Only ByteBuffer, following exception happened. Because `HeapByteBfuferR.hashArray()` and `HeapByteBfuferR.isDirect()` returns false.\r\n```\r\nthrow new IllegalArgumentException(\"Only the array-backed ByteBuffer or DirectBuffer is supported\");\r\n```\r\nhttps://github.com/msgpack/msgpack-java/blob/main/msgpack-core/src/main/java/org/msgpack/core/buffer/MessageBuffer.java#L400\r\n\r\nI want to unpacking HeapByteBufferR without copying bytes. Because I save msgpack data in BigTable, and BigTable library returns ByteString, and it only able to be no-copy converted to HeapByteBufferR with `asReadOnlyByteBuffer()`.","author":{"url":"https://github.com/takaaki7","@type":"Person","name":"takaaki7"},"datePublished":"2024-12-08T08:09:56.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/861/msgpack-java/issues/861"}