SEVERE: Error reading request in APP logs on Tomcat 8.5.45

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

After Upgrading Clarity and installing Tomcat 8.5.45, the following messages are found in the APP system app-system.log:

org.apache.coyote.AbstractProtocol$ConnectionHandler process
SEVERE: Error reading request, ignored
java.lang.NullPointerException
      at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.getSslSupport(NioEndpoint.java:1415)
      at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
      at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1504)
      at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
      at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
      at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
      at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      at java.base/java.lang.Thread.run(Thread.java:834)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor doRun
SEVERE:
java.lang.NullPointerException
      at org.apache.coyote.http11.Http11InputBuffer.recycle(Http11InputBuffer.java:282)
      at org.apache.coyote.http11.Http11Processor.recycle(Http11Processor.java:1714)
      at org.apache.coyote.AbstractProtocol$ConnectionHandler.release(AbstractProtocol.java:993)
      at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:961)
      at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1504)
      at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
      at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
      at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
      at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      at java.base/java.lang.Thread.run(Thread.java:834)

Environment

Release : Clarity and Tomcat 8.5.45

Cause

This is caused by a Apache Tomcat bug #63735.

Resolution

The resolution is to upgrade to Tomcat version 8.5.46 or above.

Note: There is no known impact to the application (aside from causing the logs to fill up with the error message)

Additional Information

All Apache Tomcat versions can be found at

https://archive.apache.org/dist/tomcat