java.nio.BufferOverflowException: null

- [ ] I have searched the [issues](https://github.com/seata/seata/issues) of this repository and believe that this is not a duplicate.

### Ⅰ. Issue Description

03-23 09:44:40.128 ERROR [io.seata.core.rpc.netty.v1.ProtocolV1Encoder] - Encode request error!
java.nio.BufferOverflowException: null
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:192)
at java.nio.ByteBuffer.put(ByteBuffer.java:859)
at io.seata.codec.seata.protocol.transaction.BranchRegisterRequestCodec.encode(BranchRegisterRequestCodec.java:82)
at io.seata.codec.seata.protocol.MergedWarpMessageCodec.encode(MergedWarpMessageCodec.java:55)
at io.seata.codec.seata.SeataCodec.encode(SeataCodec.java:46)
at io.seata.core.rpc.netty.v1.ProtocolV1Encoder.encode(ProtocolV1Encoder.java:93)
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:716)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:708)
at io.netty.channel.AbstractChannelHandlerContext.access$1700(AbstractChannelHandlerContext.java:56)
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:1102)
at io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1149)
at io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:1073)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:163)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:510)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:518)
at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)

### Ⅱ. Describe what happened
在update100多条数据的时候就会发生这个异常报错，修改几十条数据不会，用的seata是1.4.0版本

If there is an exception, please attach the exception trace:

```
Just paste your stack trace here!
```

### Ⅲ. Describe what you expected to happen

### Ⅳ. How to reproduce it (as minimally and precisely as possible)

1. xxx
2. xxx
3. xxx

### Ⅴ. Anything else we need to know?

### Ⅵ. Environment:

- JDK version :
- OS :
- Others:

Start by inspecting BranchRegisterRequestCodec.encode at line 82 and its callers MergedWarpMessageCodec.encode and SeataCodec.encode. Try to reproduce the BufferOverflowException by updating more than 100 rows with Seata 1.4.0; done means the request encodes successfully without the reported exception.

Written by the indexing model from the issue text.