HTTP Status 400 – Bad Request


Type Exception Report

Message Invalid character found in the request target [/c?k=%E3%80%90%E2%94%83%E6%80%BB%E4%BB%A3%EF%BC%9217431[%EF%BC%B1]%E3%80%91%E3%80%91%E5%BD%A9%E4%B8%96%E7%95%8C%E5%85%8540%E9%80%8155&action=search.Search]. The valid characters are defined in RFC 7230 and RFC 3986

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: Invalid character found in the request target [/c?k=%E3%80%90%E2%94%83%E6%80%BB%E4%BB%A3%EF%BC%9217431[%EF%BC%B1]%E3%80%91%E3%80%91%E5%BD%A9%E4%B8%96%E7%95%8C%E5%85%8540%E9%80%8155&action=search.Search]. The valid characters are defined in RFC 7230 and RFC 3986
	org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:491)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:260)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.base/java.lang.Thread.run(Thread.java:1583)

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


Apache Tomcat/9.0.37