https://bz.apache.org/bugzilla/show_bug.cgi?id=59890
Bug ID: 59890
Summary: Tomcat jdbc 7.0.68 : Caused by:
java.lang.IllegalArgumentException: Comparison method
violates its general contract! ( Similar to Bug 58489
:
https://bz.apache.org/bugzilla/show_bug.cgi?id=58489)
Product: Tomcat Modules
Version: unspecified
Hardware: Other
OS: SunOS
Status: NEW
Severity: blocker
Priority: P2
Component: jdbc-pool
Assignee: dev@tomcat.apache.org
Reporter: ns1...@att.com
We are facing same exception in our env’s when we have upgraded our setup from:
From :
Java : jdk1.6.0_45
Java Apache Tomcat Version 7.0.37
To
Java : jdk1.8.0_92
Java Apache Tomcat Version 7.0.68
Sample SQL which during which this exception occurred :
SELECT DISTINCT c.comp_id AS dbkey
FROM
equipment e,
component c
WHERE
e.equip_id = c.equip_id AND
((e.ptnii_equip_name = 'cl2oh406me3' AND c.beg_slot = 7) AND
trunc(c.port/1000)-1 = '2') AND mod(c.port, 1000) = 0
JFYI : Result I see in TOAD by directly executing above SQL is only 1 record
with value as :
1166506
Caused by: 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:439)
at java.util.TimSort.sort(TimSort.java:245)
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.tomcat.jdbc.pool.interceptor.SlowQueryReport.removeOldest(SlowQueryReport.java:213)
at
org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport.getQueryStats(SlowQueryReport.java:200)
at
org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport.reportQuery(SlowQueryReport.java:110)
at
org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport$StatementProxy.invoke(AbstractQueryReport.java:256)
at com.sun.proxy.$Proxy666.executeQuery(Unknown Source)
at sun.reflect.GeneratedMethodAccessor4273.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport$StatementProxy.invoke(AbstractQueryReport.java:235)
at com.sun.proxy.$Proxy666.executeQuery(Unknown Source)
at
com.att.lpp.pa.core.asset.dao.AssetSearchDaoImpl.findAssetDbkeys(AssetSearchDaoImpl.java:116)
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