2020-02-28 13:28:00.922 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Local(client->server)], Parameter type [3] set to [100]
2020-02-28 13:28:00.923 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Local(client->server)], Parameter type [4] set to [65535]
2020-02-28 13:28:00.924 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.Http2UpgradeHandler     : Entry, Connection [0], SocketStatus [OPEN_READ]
2020-02-28 13:28:00.924 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.Http2UpgradeHandler     : Connection [0], State [NEW]
2020-02-28 13:28:00.936 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [0], Frame type [SETTINGS], Flags [0], Payload size [30]
2020-02-28 13:28:00.937 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Remote(server->client)], Parameter type [1] set to [16384]
2020-02-28 13:28:00.937 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Remote(server->client)], Parameter type [2] set to [1]
2020-02-28 13:28:00.937 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Remote(server->client)], Parameter type [3] set to [100]
2020-02-28 13:28:00.937 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Remote(server->client)], Parameter type [4] set to [16777216]
2020-02-28 13:28:00.938 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.ConnectionSettingsBase  : Connection [0], Endpoint [Remote(server->client)], Parameter type [5] set to [16384]
2020-02-28 13:28:00.939 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.Http2UpgradeHandler     : Entry, Connection [0], SocketStatus [OPEN_READ]
2020-02-28 13:28:00.939 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.Http2UpgradeHandler     : Connection [0], State [CONNECTED]
2020-02-28 13:28:00.940 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [0], Frame type [WINDOW_UPDATE], Flags [0], Payload size [4]
2020-02-28 13:28:00.941 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [0], Window size increment [33488897]
2020-02-28 13:28:00.941 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.AbstractStream   : Connection [0], Stream [0], increase flow control window by [33488897] to [33554432]
2020-02-28 13:28:00.941 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Frame type [HEADERS], Flags [4], Payload size [50]
2020-02-28 13:28:00.949 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.StreamStateMachine      : Connection [0], Stream [1], State changed from [null] to [IDLE]
2020-02-28 13:28:00.952 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.StreamStateMachine      : Connection [0], Stream [1], State changed from [IDLE] to [OPEN]
2020-02-28 13:28:00.953 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Processing headers payload of size [50]
2020-02-28 13:28:00.956 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [:authority], Value [localhost:8443]
2020-02-28 13:28:00.959 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [:method], Value [POST]
2020-02-28 13:28:00.959 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [:path], Value [/do-some]
2020-02-28 13:28:00.960 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [:scheme], Value [https]
2020-02-28 13:28:00.960 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [content-length], Value [100000]
2020-02-28 13:28:00.960 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Connection [0], Stream [1], HTTP header [user-agent], Value [Java-http-client/11.0.6]
2020-02-28 13:28:00.960 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Swallowed [0] bytes
2020-02-28 13:28:00.961 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Frame type [DATA], Flags [0], Payload size [16384]
2020-02-28 13:28:00.963 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Data length, [16384], Padding length [none]
2020-02-28 13:28:00.964 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Data added to inBuffer when read thread is waiting. Signalling that thread to continue
2020-02-28 13:28:00.964 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Frame type [DATA], Flags [0], Payload size [16384]
2020-02-28 13:28:00.965 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Data length, [16384], Padding length [none]
2020-02-28 13:28:00.966 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Data added to inBuffer when read thread is waiting. Signalling that thread to continue
2020-02-28 13:28:00.966 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Frame type [DATA], Flags [0], Payload size [16384]
2020-02-28 13:28:00.968 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Data length, [16384], Padding length [none]
2020-02-28 13:28:00.969 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Data added to inBuffer when read thread is waiting. Signalling that thread to continue
2020-02-28 13:28:00.969 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Frame type [DATA], Flags [0], Payload size [16383]
2020-02-28 13:28:00.969 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [1], Data length, [16383], Padding length [none]
2020-02-28 13:28:00.969 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Stream           : Data added to inBuffer when read thread is waiting. Signalling that thread to continue
2020-02-28 13:28:00.969 DEBUG 3492 --- [nio-8443-exec-6] org.apache.coyote.http2.Http2Parser      : Connection [0], Stream [0], Frame type [HEADERS], Flags [0], Payload size [4]
2020-02-28 13:28:00.972 DEBUG 3492 --- [nio-8443-exec-6] o.a.coyote.http2.Http2UpgradeHandler     : Connection error

org.apache.coyote.http2.ConnectionException: Invalid frame type [HEADERS]
	at org.apache.coyote.http2.FrameType.check(FrameType.java:64) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2Parser.validateFrame(Http2Parser.java:654) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.validate(Http2AsyncParser.java:213) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.callHandler(Http2AsyncParser.java:193) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase$VectoredIOCompletionHandler.completed(SocketWrapperBase.java:1042) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper$NioOperationState.run(NioEndpoint.java:1556) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase$OperationState.start(SocketWrapperBase.java:1016) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.vectoredOperation(SocketWrapperBase.java:1427) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.read(SocketWrapperBase.java:1270) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.read(SocketWrapperBase.java:1242) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser.readFrame(Http2AsyncParser.java:137) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2Parser.readFrame(Http2Parser.java:71) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2UpgradeHandler.upgradeDispatch(Http2UpgradeHandler.java:332) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncUpgradeHandler.upgradeDispatch(Http2AsyncUpgradeHandler.java:39) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser$PrefaceCompletionHandler.completed(Http2AsyncParser.java:124) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser$PrefaceCompletionHandler.completed(Http2AsyncParser.java:60) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase$VectoredIOCompletionHandler.completed(SocketWrapperBase.java:1064) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper$NioOperationState.run(NioEndpoint.java:1556) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase$OperationState.start(SocketWrapperBase.java:1016) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.vectoredOperation(SocketWrapperBase.java:1427) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.read(SocketWrapperBase.java:1270) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketWrapperBase.read(SocketWrapperBase.java:1242) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncParser.readConnectionPreface(Http2AsyncParser.java:55) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2UpgradeHandler.init(Http2UpgradeHandler.java:239) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncUpgradeHandler.init(Http2AsyncUpgradeHandler.java:39) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2UpgradeHandler.upgradeDispatch(Http2UpgradeHandler.java:314) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http2.Http2AsyncUpgradeHandler.upgradeDispatch(Http2AsyncUpgradeHandler.java:39) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:59) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.31.jar:9.0.31]
	at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]