High cpu in beanutils WeakHashMap

Issue

• We see high CPU usage in several threads accessing a WeakHashMap in org.apache.commons.beanutils.MethodUtils.getMatchingAccessibleMethod:

"http-mrkcrsbtvlpr01%2F172.25.70.81-8200-206" daemon prio=10 tid=0x00007fbac8275800 nid=0x4865 runnable [0x00007fba97159000]
   java.lang.Thread.State: RUNNABLE
    at java.util.WeakHashMap.get(WeakHashMap.java:470)
    at org.apache.commons.beanutils.MethodUtils.getMatchingAccessibleMethod(MethodUtils.java:530)
    at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:209)
    at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:217)
    at org.apache.commons.digester.Rule.end(Rule.java:253)