signature_algorithms extension is present, but the algorithms are unreconginzed or unsupported, JSSE peers should send fatal alert immediately.
For example, in this case, it's unnecssary to try to produce ServerHello, Certificate and ServerKeyExchange messages.

javax.net.ssl|ERROR|10|main|2021-03-08 22:36:08.645 CST|TransportContext.java:361|Fatal (INTERNAL_ERROR): No supported signature algorithm for RSA key (
"throwable" : {
  javax.net.ssl.SSLException: No supported signature algorithm for RSA key
   at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
   at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
   at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:356)
   at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:312)
   at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:303)
   at java.base/sun.security.ssl.DHServerKeyExchange$DHServerKeyExchangeMessage.<init>(DHServerKeyExchange.java:137)
   at java.base/sun.security.ssl.DHServerKeyExchange$DHServerKeyExchangeProducer.produce(DHServerKeyExchange.java:481)
   at java.base/sun.security.ssl.ClientHello$T12ClientHelloConsumer.consume(ClientHello.java:1120)
   at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.onClientHello(ClientHello.java:853)
   at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.consume(ClientHello.java:812)
   at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396)
   at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480)
   at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458)
   at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:199)
   at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
   at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1501)
   at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1415)
   at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450)
   at java.base/sun.security.ssl.SSLSocketImpl.ensureNegotiated(SSLSocketImpl.java:915)
   at java.base/sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:1006)
   at java.base/java.io.InputStream.read(InputStream.java:218)
   at com.tencent.tls.Utils.readIn(Utils.java:166)
   at com.tencent.tls.JdkServer.acceptNoEx(JdkServer.java:107)
   at com.tencent.tls.TlsServer.main(TlsServer.java:74)}