Comparing a sum of an attribute fails with ClassCastException

public void testSum2() throws Exception {
    QueryFactory qf = getQueryFactory();
    Query q = qf.from(getModelFactory().getUserImplClass())
        .select(sum("age"))
        .groupBy("name")
        .having(sum("age")).gt(50000).toBuilder()
        .build();
    List<Object[]> list = q.list();
}

java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
	at java.lang.Integer.compareTo(Integer.java:52)
	at org.infinispan.objectfilter.impl.util.Interval.contains(Interval.java:92)
	at org.infinispan.objectfilter.impl.predicateindex.IntervalCondition.match(IntervalCondition.java:19)
	at org.infinispan.objectfilter.impl.predicateindex.IntervalCondition.match(IntervalCondition.java:9)
	at org.infinispan.objectfilter.impl.predicateindex.Predicate.match(Predicate.java:37)
	at org.infinispan.objectfilter.impl.predicateindex.Predicates.notifyMatchingSubscribers(Predicates.java:118)
	at org.infinispan.objectfilter.impl.predicateindex.AttributeNode.processValue(AttributeNode.java:114)
	at org.infinispan.objectfilter.impl.predicateindex.RowMatcherEvalContext.processAttributes(RowMatcherEvalContext.java:30)
	at org.infinispan.objectfilter.impl.predicateindex.MatcherEvalContext.process(MatcherEvalContext.java:129)
	at org.infinispan.objectfilter.impl.ObjectFilterImpl.filter(ObjectFilterImpl.java:213)
	at org.infinispan.query.dsl.embedded.impl.HybridQuery$1.updateNext(HybridQuery.java:80)
	at org.infinispan.query.dsl.embedded.impl.HybridQuery$1.hasNext(HybridQuery.java:59)
	at org.infinispan.query.dsl.embedded.impl.BaseEmbeddedQuery.listInternal(BaseEmbeddedQuery.java:66)
	at org.infinispan.query.dsl.embedded.impl.BaseEmbeddedQuery.list(BaseEmbeddedQuery.java:57)
	at org.infinispan.query.dsl.embedded.impl.DelegatingQuery.list(DelegatingQuery.java:49)
	at org.infinispan.query.dsl.embedded.QueryDslConditionsTest.testSum2(QueryDslConditionsTest.java:2001)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
	at org.testng.TestRunner.privateRun(TestRunner.java:767)
	at org.testng.TestRunner.run(TestRunner.java:617)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
	at org.testng.SuiteRunner.access$000(SuiteRunner.java:38)
	at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:382)
	at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

.having(sum("age")).gt(new Long(50000)).toBuilder()