[sync360@app72 tmp]$ jstack 4611 | grep -A 100 $(printf"%x" 5262) "XNIO-2 task-215"#388 prio=5 os_prio=0 tid=0x00007f95a0026800 nid=0x148e runnable [0x00007f96825e3000] java.lang.Thread.State: RUNNABLE at org.apache.commons.collections4.map.AbstractReferenceMap.purge(AbstractReferenceMap.java:416) at org.apache.commons.collections4.map.AbstractReferenceMap.purge(AbstractReferenceMap.java:384) at org.apache.commons.collections4.map.AbstractReferenceMap.purgeBeforeRead(AbstractReferenceMap.java:361) at org.apache.commons.collections4.map.AbstractReferenceMap.get(AbstractReferenceMap.java:245) at org.apache.shardingsphere.core.parse.cache.SQLParseResultCache.getSQLStatement(SQLParseResultCache.java:54)