HTTP Status 400 – Bad Request


Type Exception Report

Message The state [PERIOD] is not valid for the end of a segment.

Description The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

Exception

java.lang.IllegalArgumentException: The state [PERIOD] is not valid for the end of a segment.
	org.apache.tomcat.util.http.parser.HttpParser$DomainParseState.next(HttpParser.java:916)
	org.apache.tomcat.util.http.parser.HttpParser.readHostDomainName(HttpParser.java:822)
	org.apache.tomcat.util.http.parser.Host.parse(Host.java:71)
	org.apache.tomcat.util.http.parser.Host.parse(Host.java:45)
	org.apache.coyote.AbstractProcessor.parseHost(AbstractProcessor.java:273)
	org.apache.coyote.ajp.AjpProcessor.prepareRequest(AjpProcessor.java:850)
	org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:373)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:764)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1388)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:750)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/9.0.10