apache
[Bug] In the Dubbo interface, the parameter type is defined as the parent class, but when the caller invokes the remote interface method, a subclass is passed as the parameter. This leads to an inability to deserialize the parameter
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Apache Dubbo Component
Java SDK (apache/dubbo)
Dubbo Version
dubbo 3.2.7 jdk 17
Steps to reproduce this issue
first: First, i define an interface as follows: public interface RemotePrinterService {
/**
- print file
- @param printPara */ Boolean printPdfFile(PrintPara printPara); }
Second, create a Dubbo implementation class to implement this interface. @DubboService public class RemotePrinterServiceImpl implements RemotePrinterService {
private final IPrinterService printerService;
public RemotePrinterServiceImpl(IPrinterService printerService) { this.printerService = printerService; }
/**
- print file
- @param printPara */ @Override public Boolean printPdfFile(PrintPara printPara ) { return printerService.printPdfFile(printPara); } }
Final, there is a service that will call this print interface. However, it added a class that extends PrintPara, and during the call, it passes a subclass of PrintPara as the parameter. This will cause the following error:
[NettyServerWorker-5-2] WARN o.a.d.r.p.d.DecodeableRpcInvocation - [?,?] - [DUBBO] Decode rpc invocation failed: org.apache.dubbo.common.serialize.SerializationException: java.lang.IllegalArgumentException: deserialize failed. expected class: class com.xxx.oas.api.tool.printer.bo.PrintPara but actual class: class java.util.HashMap, dubbo version: 3.2.7, current host: 10.8.7.33, error code: 4-20. This may be caused by , go to https://dubbo.apache.org/faq/4/20 to find instructions. java.io.IOException: org.apache.dubbo.common.serialize.SerializationException: java.lang.IllegalArgumentException: deserialize failed. expected class: class com.xxx.oas.api.tool.printer.bo.PrintPara but actual class: class java.util.HashMap at org.apache.dubbo.common.serialize.DefaultSerializationExceptionWrapper.handleToIOException(DefaultSerializationExceptionWrapper.java:358) at org.apache.dubbo.common.serialize.DefaultSerializationExceptionWrapper.access$000(DefaultSerializationExceptionWrapper.java:28) at org.apache.dubbo.common.serialize.DefaultSerializationExceptionWrapper$ProxyObjectInput.readObject(DefaultSerializationExceptionWrapper.java:168) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.drawArgs(DecodeableRpcInvocation.java:268) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.decode(DecodeableRpcInvocation.java:169) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.decode(DecodeableRpcInvocation.java:102) at org.apache.dubbo.rpc.protocol.dubbo.DubboCodec.decodeBody(DubboCodec.java:195) at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:138) at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:92) at org.apache.dubbo.rpc.protocol.dubbo.DubboCountCodec.decode(DubboCountCodec.java:60) at org.apache.dubbo.remoting.transport.netty4.NettyCodecAdapter$InternalDecoder.decode(NettyCodecAdapter.java:103) at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529) at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.handler.codec.ByteToMessageDecoder.handlerRemoved(ByteToMessageDecoder.java:266) at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:536) at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: org.apache.dubbo.common.serialize.SerializationException: java.lang.IllegalArgumentException: deserialize failed. expected class: class com.xxx.oas.api.tool.printer.bo.PrintPara but actual class: class java.util.HashMap ... 37 common frames omitted Caused by: java.lang.IllegalArgumentException: deserialize failed. expected class: class com.xxx.oas.api.tool.printer.bo.PrintPara but actual class: class java.util.HashMap at org.apache.dubbo.common.serialize.fastjson2.FastJson2ObjectInput.readObject(FastJson2ObjectInput.java:132) at org.apache.dubbo.common.serialize.DefaultSerializationExceptionWrapper$ProxyObjectInput.readObject(DefaultSerializationExceptionWrapper.java:166) ... 34 common frames omitted
What you expected to happen
Call ended normally.
Anything else
No response
Are you willing to submit a pull request to fix on your own?
- [ ] Yes I am willing to submit a pull request on my own!
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https://cn.dubbo.apache.org/zh-cn/overview/mannual/java-sdk/tasks/security/class-check/
https://cn.dubbo.apache.org/zh-cn/overview/mannual/java-sdk/tasks/security/class-check/
my dubbo serialize-check config is WARN