Tomcat: java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens

I am getting below stack trace when I am deploying my application in a multi-server Apache Tomcat 8 environment. I am getting this error frequently, and it seems it is blocking the tomcat thread: INFO [http-nio-80-exec-4461] org.apache.coyote.http11.AbstractHttp11Processor.process Error parsing HTTP request header  Note: further occurrences of HTTP header parsing errors will be logged at DEBUG … Read more