use aws-mysql-jdbc 1.0.0 HikariCP 2.7.9 happened an exception, please check this question

[zixubingfeng]

j.u.ConcurrentModificationException: null
at j.u.LinkedHashMap$LinkedHashIterator.remove(LinkedHashMap.java:732)
at s.a.r.j.m.s.c.m.c.u.ExpiringCache$1.removeEldestEntry(ExpiringCache.java:49)
at j.util.LinkedHashMap.afterNodeInsertion(LinkedHashMap.java:299)
at java.util.HashMap.putVal(HashMap.java:664)
at java.util.HashMap.put(HashMap.java:612)
at s.a.r.j.m.s.c.m.c.u.ExpiringCache.put(ExpiringCache.java:109)
at s.a.r.j.m.s.c.m.c.j.h.p.f.AuroraTopologyService.updateCache(AuroraTopologyService.java:388)
at s.a.r.j.m.s.c.m.c.j.h.p.f.AuroraTopologyService.getTopology(AuroraTopologyService.java:198)
at s.a.r.j.m.s.c.m.c.j.h.p.f.FailoverConnectionPlugin.fetchTopology(FailoverConnectionPlugin.java:996)
at s.a.r.j.m.s.c.m.c.j.h.p.f.FailoverConnectionPlugin.initializeTopology(FailoverConnectionPlugin.java:432)
at s.a.r.j.m.s.c.m.c.j.h.p.f.FailoverConnectionPlugin.initFromHostPatternSetting(FailoverConnectionPlugin.java:965)
at s.a.r.j.m.s.c.m.c.j.h.p.f.FailoverConnectionPlugin.initProxy(FailoverConnectionPlugin.java:973)
at s.a.r.j.m.s.c.m.c.j.h.p.f.FailoverConnectionPlugin.openInitialConnection(FailoverConnectionPlugin.java:217)
at s.a.r.j.m.s.c.m.c.j.h.p.ConnectionPluginManager.openInitialConnection(ConnectionPluginManager.java:146)
at s.a.r.j.m.s.c.m.c.j.h.ConnectionProxy.initPluginManager(ConnectionProxy.java:278)
at s.a.r.j.m.s.c.m.c.j.h.ConnectionProxy.(ConnectionProxy.java:99)
at s.a.r.j.m.s.c.m.c.j.h.ConnectionProxy.(ConnectionProxy.java:86)
at s.a.r.j.m.s.c.m.c.j.h.ConnectionProxy.(ConnectionProxy.java:74)
at s.a.r.j.m.s.c.m.c.j.h.ConnectionProxy.autodetectClusterAndCreateProxyInstance(ConnectionProxy.java:121)
at s.a.r.j.m.s.c.m.c.j.NonRegisteringDriver.connect(NonRegisteringDriver.java:221)
at c.z.h.u.DriverDataSource.getConnection(DriverDataSource.java:117)
at c.z.h.u.DriverDataSource.getConnection(DriverDataSource.java:123)
at c.z.h.pool.PoolBase.newConnection(PoolBase.java:365)
at c.z.h.pool.PoolBase.newPoolEntry(PoolBase.java:194)
at c.z.h.p.Hikar

[karenc-bq]

Hi @zixubingfeng,

Can you please see if this answer fixes the issue for you.

[zixubingfeng]

hi @karenc-bq
why not compile and install a new package，Please help to release the new package as soon as possible

[karenc-bq]

Hi @zixubingfeng, we are planning on a release containing multiple fixes. During the mean time you can check out our snapshot build here. Thank you for your patience.

[hsuamz]

There has been improvements in this area with our latest releases. We'll be closing this discussion. Please feel free to re-open this discussion if there are further questions. Thank you.