I am using the latest Tomcat 10.1 Java 17
Apache Web server communicates with an application server running tomcat. The application name is webtools. I am migrating a working app from Tomcat 9 to Tomcat 10.1. I am getting this error in the tomcat app after sending a web request. It seems like it is starting to load things. Then I see the below: 19-Sep-2024 13:54:54.086 INFO [main] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of deployment descriptor [/....../webtools/conf/Catalina/localhost/ROOT.xml] has finished in [3,782] ms 19-Sep-2024 13:54:54.089 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-0:0:0:0:0:0:0:0-8149"] 19-Sep-2024 13:54:54.101 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [3873] milliseconds 19-Sep-2024 13:54:55.332 SEVERE [ajp-nio-0:0:0:0:0:0:0:0-8149-exec-1] org.apache.coyote.ajp.AjpMessage.checkOverflow Overflow error for buffer adding [113] bytes at position [8085] java.lang.ArrayIndexOutOfBoundsException at org.apache.coyote.ajp.AjpMessage.checkOverflow(AjpMessage.java:242) at org.apache.coyote.ajp.AjpMessage.appendBytes(AjpMessage.java:211) at org.apache.coyote.ajp.AjpMessage.appendByteChunk(AjpMessage.java:197) at org.apache.coyote.ajp.AjpMessage.appendBytes(AjpMessage.java:181) at org.apache.coyote.ajp.AjpProcessor.prepareResponse(AjpProcessor.java:991) at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:377) at org.apache.coyote.Response.action(Response.java:210) at org.apache.coyote.Response.commit(Response.java:464) at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:285) at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:244) at org.apache.catalina.connector.Response.finishResponse(Response.java:421) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:373) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:431) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:904) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.base/java.lang.Thread.run(Thread.java:840) This is my server.xml file: <?xml version='1.0' encoding='utf-8'?> <Server port="8145" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.startup.VersionLoggerListener" /> <Listener className="org.apache.catalina.core.AprLifecycleListener" /> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> <Service name="Catalina"> <Connector port="8149" address="::" secretRequired="false" allowedRequestAttributesPattern=".*" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" tomcatAuthentication="false" acceptCount="100" maxThreads="400" minSpareThreads="50" URIEncoding="UTF-8" maxPostSize="20971520"/> <Engine name="Catalina" defaultHost="localhost"> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> </Host> </Engine> </Service> </Server> Error in the jk.log on apache running mod_jk: [Thu Sep 19 14:11:06.896 2024] [18915:140692079404800] [error] ajp_unmarshal_response::jk_ajp_common.c (786): (webtools) NULL header value [Thu Sep 19 14:11:06.896 2024] [18915:140692079404800] [error] ajp_process_callback::jk_ajp_common.c (1937): (webtools) ajp_unmarshal_response failed [Thu Sep 19 14:11:06.896 2024] [18915:140692079404800] [info] ajp_service::jk_ajp_common.c (2774): (webtools) sending request to tomcat failed (recoverable), because of server error (attempt=1) [Thu Sep 19 14:11:06.997 2024] [18915:140692079404800] [info] ajp_send_request::jk_ajp_common.c (1623): (webtools) did not receive END_RESPONSE, closing socket -1 [Thu Sep 19 14:11:07.127 2024] [18915:140692079404800] [error] ajp_unmarshal_response::jk_ajp_common.c (786): (webtools) NULL header value [Thu Sep 19 14:11:07.127 2024] [18915:140692079404800] [error] ajp_process_callback::jk_ajp_common.c (1937): (webtools) ajp_unmarshal_response failed [Thu Sep 19 14:11:07.127 2024] [18915:140692079404800] [info] ajp_service::jk_ajp_common.c (2774): (webtools) sending request to tomcat failed (recoverable), because of server error (attempt=2) [Thu Sep 19 14:11:07.128 2024] [18915:140692079404800] [error] ajp_service::jk_ajp_common.c (2795): (webtools) connecting to tomcat failed (rc=-3, errors=1, client_errors=0). [Thu Sep 19 14:11:07.128 2024] [18915:140692079404800] [info] jk_handler::mod_jk.c (2991): Service error=-3 for worker=webtools Thanks, Lance Campbell