tomcat8: Errors thrown when connecting to default HTTP connector (localhost:8080)

[Alan Orth]

Testing tomcat8 (8.5.30-1ubuntu1) with openjdk-8-jdk-headless on Ubuntu bionic I noticed the following error when connecting to Tomcat on the default HTTP connector:

25-Apr-2018 13:44:00.135 SEVERE [http-nio-127.0.0.1-8080-exec-1] org.apache.coyote.AbstractProtocol$ConnectionHandler.process Error reading request, ignored
 java.lang.NoSuchMethodError: java.nio.ByteBuffer.position(I)Ljava/nio/ByteBuffer;
        at org.apache.coyote.http11.Http11InputBuffer.init(Http11InputBuffer.java:688)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:672)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)

This same configuration was working ~2 weeks ago in early 2018-04. Looking at the tomcat8 publishing history for Ubuntu bionic[0] I see the package was recently synced from Debian sid. There is currently an open bug for this in Debian[1], the resolution of which states that tomcat8 8.5.30-1 was compiled with OpenJDK 9 and therefore will not run with OpenJDK 8.

[0] https://launchpad.net/ubuntu/+source/tomcat8/+publishinghistory
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895866

[Thomas (lostexception)]

This seems to be related to my bug https://bugs.launchpad.net/ubuntu/+source/tomcat8/+bug/1766697 (sorry if this is the wrong way to link another bug). If the explanation is correct, dependencies and the init script in the tomcat8 package should be changed.

My workaround:

- Install openjdk-11-jre-headless

- Change init script /etc/init.d/tomcat8:
61c61
< for java_version in 9 8
---
> for java_version in 11 9

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.