https://bz.apache.org/bugzilla/show_bug.cgi?id=70111

            Bug ID: 70111
           Summary: Inalid character found in method name
           Product: Tomcat 9
           Version: 9.0.118
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Catalina
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: -----

Tomcat stops responding to any request. The last log message in the
catalina.out is the one below. Don't know what/who created a request with the
given method name but after this request restart is needed.


INFO [https-jsse-nio-8443-exec-54]
org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request
header
 Note: further occurrences of HTTP request parsing errors will be logged at
DEBUG level.
        java.lang.IllegalArgumentException: Invalid character found in method
name [00x0c0x020x010x01`0x070x020x010x030x040x000x800x00...]. HTTP method names
must be tokens
                at
org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:402)
                at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:271)
                at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
                at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:1309)
                at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1854)
                at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
                at
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:973)
                at
org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:491)
                at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
                at java.lang.Thread.run(Thread.java:750)
org.springframework.security.web.header.HeaderWriterFilter$HeaderWriterRequest@1ad5bd98

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