Details
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Bug
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Status: Closed
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Minor
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Resolution: Fixed
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qpid-java-broker-7.0.2, qpid-java-6.0.8, qpid-java-broker-7.0.0, qpid-java-6.1.5, qpid-java-broker-7.0.1
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None
Description
IllegalArgumentException "Comparison method violates its general contract!" can be thrown whilst comparing log file details of BrokerFileLogger or ViortualHostFileLogger
2018-03-14 13:06:57,951 DEBUG [qtp127624166-218] (o.a.q.s.m.p.s.r.RestServlet) - IllegalArgumentException processing request
java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeHi(TimSort.java:899)
at java.util.TimSort.mergeAt(TimSort.java:516)
at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
at java.util.TimSort.sort(TimSort.java:254)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:175)
at org.apache.qpid.server.logging.logback.RolloverWatcher.getLogFileDetails(RolloverWatcher.java:130)
at org.apache.qpid.server.logging.logback.BrokerFileLoggerImpl.getLogFiles(BrokerFileLoggerImpl.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.qpid.server.model.ConfiguredObjectMethodAttributeOrStatistic.getValue(ConfiguredObjectMethodAttributeOrStatistic.java:68)
at org.apache.qpid.server.model.ConfiguredObjectMethodAttribute.getValue(ConfiguredObjectMethodAttribute.java:26)
at org.apache.qpid.server.model.AbstractConfiguredObject.getAttribute(AbstractConfiguredObject.java:1856)
at org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.incorporateAttributesIntoMap(ConfiguredObjectToMapConverter.java:86)
at org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.convertObjectToMap(ConfiguredObjectToMapConverter.java:64)
at org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.incorporateChildrenIntoMap(ConfiguredObjectToMapConverter.java:271)
at org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.convertObjectToMap(ConfiguredObjectToMapConverter.java:69)
at org.apache.qpid.server.management.plugin.servlet.rest.RestServlet.doGet(RestServlet.java:247)
at org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doGet(AbstractServlet.java:128)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at org.apache.qpid.server.management.plugin.servlet.rest.RestServlet.service(RestServlet.java:341)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
at org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:157)
at org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilterChainAs(AuthenticationCheckFilter.java:152)
at org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilter(AuthenticationCheckFilter.java:122)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
at org.apache.qpid.server.management.plugin.filter.LoggingFilter.doFilter(LoggingFilter.java:63)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
at org.apache.qpid.server.management.plugin.filter.ForbiddingTraceFilter.doFilter(ForbiddingTraceFilter.java:65)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
at org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:308)
at org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:262)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
at org.apache.qpid.server.management.plugin.filter.ExceptionHandlingFilter.doFilter(ExceptionHandlingFilter.java:59)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1593)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1239)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1562)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1141)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:564)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
at org.apache.qpid.server.bytebuffer.QpidByteBufferFactory.lambda$null$0(QpidByteBufferFactory.java:464)
at java.lang.Thread.run(Thread.java:745)
The exception can be thrown on attempt to get value of derived attribute logFiles in FileLoger. As result, REST calls to FileLoger can end-up in error as below
{
"errorMessage" : "Comparison method violates its general contract!"
}
Broker REST service call can be affected if depth parameter value is 1 or greater.
The Web Management Console invokes broker REST service with depth=1 and on running into the issue the information on Broker tab is not rendered. Otherwise the operation of the Broker is not affected.