java.lang.IllegalArgumentException: Request header is too large

Stack Overflow | coder0007 | 5 months ago
  1. 0
    This error is caused by malformed HTTP request. You are trying to access unsecured page through https.
  2. 0
    Some bots are sending malformed HTTP requests to your site. Try to find their IP addresses in the access logs and ask them to fix the bots or blacklist them.
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    Submitted form data visible in url despite using method=post

    Stack Overflow | 5 months ago | coder0007
    java.lang.IllegalArgumentException: Request header is too large
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  5. 0

    JAVA EE web module security getting error IllegalArgumentException

    Stack Overflow | 1 month ago | JoeZ
    java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
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    You might send a large amount of data in the request URL. Consider sending it in the request body.
    via Coderanch by Partheban Udayakumar

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Root Cause Analysis

  1. java.lang.IllegalArgumentException

    Request header is too large

    at org.apache.coyote.http11.InternalAprInputBuffer.fill()
  2. Grizzly HTTP
    AprEndpoint$SocketProcessor.run
    1. org.apache.coyote.http11.InternalAprInputBuffer.fill(InternalAprInputBuffer.java:574)
    2. org.apache.coyote.http11.InternalAprInputBuffer.parseRequestLine(InternalAprInputBuffer.java:217)
    3. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:996)
    4. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
    5. org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2517)
    6. org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2506)
    6 frames
  3. Java RT
    ThreadPoolExecutor$Worker.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    2 frames
  4. Tomcat Util
    TaskThread$WrappingRunnable.run
    1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    1 frame
  5. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:722)
    1 frame