zrlw commented on PR #14924:
URL: https://github.com/apache/dubbo/pull/14924#issuecomment-2661909083
if enable tri without openapi, NPE will be thrown at
org.apache.dubbo.rpc.protocol.tri.servlet.HttpMetadataAdapter because
```request.getHeader(HttpHeaderNames.HOST.getName())``` will return null.
```
@Override
public HttpHeaders headers() {
headers.add(PseudoHeaderName.METHOD.value(), method());
headers.add(PseudoHeaderName.SCHEME.value(),
request.getScheme());
headers.add(PseudoHeaderName.AUTHORITY.value(),
request.getHeader(HttpHeaderNames.HOST.getName()));
headers.add(PseudoHeaderName.PROTOCOL.value(),
request.getProtocol());
this.headers = headers;
```
https://github.com/apache/dubbo-samples/tree/master/2-advanced/dubbo-samples-triple-servlet
NPE:
```
[DUBBO] Initialize executor failed., dubbo version: 3.3.4-SNAPSHOT, current
host: 172.27.0.3, error code: 0-18. This may be caused by , go to
https://dubbo.apache.org/faq/0/18 to find instructions.
2025-02-16T08:06:02.1996318Z java.lang.NullPointerException: value
2025-02-16T08:06:02.1997279Z at
io.netty.util.internal.ObjectUtil.checkNotNull(ObjectUtil.java:39)
~[netty-common-4.1.107.Final.jar:4.1.107.Final]
2025-02-16T08:06:02.1998664Z at
io.netty.handler.codec.DefaultHeaders.add(DefaultHeaders.java:331)
~[netty-codec-4.1.107.Final.jar:4.1.107.Final]
2025-02-16T08:06:02.2000554Z at
org.apache.dubbo.remoting.http12.netty4.NettyHttpHeaders.add(NettyHttpHeaders.java:82)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2002451Z at
org.apache.dubbo.rpc.protocol.tri.servlet.jakarta.HttpMetadataAdapter.headers(HttpMetadataAdapter.java:58)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2004703Z at
org.apache.dubbo.rpc.protocol.tri.transport.TripleIsolationExecutorSupport.getServiceKey(TripleIsolationExecutorSupport.java:46)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2007068Z at
org.apache.dubbo.rpc.executor.AbstractIsolationExecutorSupport.getProviderModel(AbstractIsolationExecutorSupport.java:64)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2009377Z at
org.apache.dubbo.rpc.executor.AbstractIsolationExecutorSupport.getExecutor(AbstractIsolationExecutorSupport.java:41)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2011790Z at
org.apache.dubbo.rpc.protocol.tri.h12.AbstractServerTransportListener.getExecutor(AbstractServerTransportListener.java:137)
~[dubbo-3.3.4-SNAPSHOT.jar:3.3.4-SNAPSHOT]
2025-02-16T08:06:02.2014200Z at
org.apache.dubbo.rpc.protocol.tri.h12.grpc.GrpcHttp2ServerTransportListener.initializeExecutor(GrpcHttp2ServerTransportListener.java:64)
```
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