ArrayIndexOutOfBoundsException while iterating over UnifiedMap

[yeison]

I was iterating over a unifiedMap using values view and hit an ArrayIndexOutOfBoundsException

for (Object o : unifiedMap.valuesView()) 

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Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1048576
    at com.gs.collections.impl.map.mutable.UnifiedMap$ValuesIterator.next(UnifiedMap.java:2564)
    at com.gs.collections.impl.UnmodifiableIteratorAdapter.next(UnmodifiableIteratorAdapter.java:42)
    at com.gs.futures.lexicon.product.client.components.InstrumentCache.unionOfChildMapsAsInstrumentList(InstrumentCache.java:471)

[yeison]

If I just use values() instead of valuesView() I'm able to avoid the error

[motlin]

Do you mutate the UnifiedMap inside the loop? Do you have any additional information that would help reproduce the exception?

[yeison]

Perhaps I am mutating my map somewhere else concurrently. When I add a lock the issue goes away and I can still use valuesView(). I'll close this ticket and continue to look into it. If I can reproduce it with the lock I'll let you know.