[jboss-jira] [JBoss JIRA] (WFLY-13448) [GSS](7.3.z) Undertow request failure happens due to "IllegalArgumentException: Comparison method violates its general contract!" when many filter-ref are defined
Masafumi Miura created WFLY-13448:
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Summary: [GSS](7.3.z) Undertow request failure happens due to
"IllegalArgumentException: Comparison method violates its general contract!"
when many filter-ref are defined
Key: WFLY-13448
URL: https://issues.redhat.com/browse/WFLY-13448
Project: WildFly
Issue Type: Bug
Components: Web (Undertow)
Affects Versions: 19.1.0.Final
Reporter: Masafumi Miura
Assignee: Flavia Rainone
When many filter-ref are defined (theoretically more than 32 filter-ref are defined),
Undertow has a possibility fail to process a request with the following ERROR:
{code}
ERROR [io.undertow.request] (default I/O-12) UT005071: Undertow request failed
HttpServerExchange{ GET /}: java.lang.IllegalArgumentException: Comparison method violates
its general contract!
at java.util.TimSort.mergeLo(TimSort.java:777)
at java.util.TimSort.mergeAt(TimSort.java:514)
at java.util.TimSort.mergeCollapse(TimSort.java:441)
at java.util.TimSort.sort(TimSort.java:245)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1462)
at
org.wildfly.extension.undertow.LocationService.configureHandlerChain(LocationService.java:93)
at org.wildfly.extension.undertow.Host.configureRootHandler(Host.java:174)
at org.wildfly.extension.undertow.Host.getOrCreateRootHandler(Host.java:263)
at org.wildfly.extension.undertow.Host$HostRootHandler.handleRequest(Host.java:430)
at
io.undertow.server.handlers.NameVirtualHostHandler.handleRequest(NameVirtualHostHandler.java:54)
at
io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:78)
at
io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49)
at
org.wildfly.extension.undertow.Server$DefaultHostHandler.handleRequest(Server.java:190)
at
io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:211)
at
io.undertow.server.protocol.http2.Http2UpgradeHandler.handleRequest(Http2UpgradeHandler.java:102)
at
io.undertow.server.handlers.DisallowedMethodsHandler.handleRequest(DisallowedMethodsHandler.java:61)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:370)
at
io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:255)
at
io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136)
at
io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:162)
at
io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:100)
at
io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:57)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291)
at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.nio.QueuedNioTcpServer2.acceptTask(QueuedNioTcpServer2.java:178)
at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)
{code}
The IllegalArgumentException happens when Java's TimSort algorithm happens to detect
inconsistency in the comparison. This happens because [the comparator implementation for
sorting
filter-ref|https://github.com/wildfly/wildfly/blob/19.1.0.Final/undertow/...]
does not follow the contract for comparison.
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