https://bz.apache.org/bugzilla/show_bug.cgi?id=63837
Bug ID: 63837
Summary: 7.0.97: TestAbstractAjpProcessor hangs when run with
Java 13.0 and NIO.
Product: Tomcat 7
Version: trunk
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Connectors
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Testing a release candidate for 7.0.97:
The test TestAbstractAjpProcessor hangs when I run it with Java 13 (13u0 64-bit
from Oracle, running on Windows 10) and it uses a NIO connector.
If I kill the hung JVM, it completes normally for other connectors (APR, BIO).
Note: The code was previously run with Java 6 and Java 7 and the tests were
compiled by those runs. I am not sure that the code can be compiled with Java
13 as is (I remember seeing failures, not investigated).
1. I see the following error in the stdout/stderr output of Apache Ant:
[junit] Oct. 11, 2019 3:08:56 AM org.apache.coyote.AbstractProtocol init
[junit] SEVERE: Failed to initialize end point associated with
ProtocolHandler ["ajp-nio-127.0.0.1-auto-6-58537"]
[junit] java.lang.IllegalArgumentException: timeout < 0
[junit] at
java.base/sun.nio.ch.ServerSocketAdaptor.setSoTimeout(ServerSocketAdaptor.java:153)
[junit] at
org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:477)
[junit] at
org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:750)
[junit] at
org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:467)
[junit] at
org.apache.catalina.connector.Connector.initInternal(Connector.java:951)
[junit] at
org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
[junit] at
org.apache.catalina.core.StandardService.initInternal(StandardService.java:560)
[junit] at
org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
[junit] at
org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:826)
[junit] at
org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
[junit] at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:173)
[junit] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:456)
[junit] at
org.apache.catalina.startup.TomcatBaseTest$TomcatWithFastSessionIDs.start(TomcatBaseTest.java:808)
I guess that is the root cause.
2. If I use jstack.exe to get a stacktrace from hanging JVM, I see a single
client thread reading from a connection, and no Tomcat instance running.
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