InfixSuggestersTest.testShutdownDuringBuild() failures

   [smoker]    [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=InfixSuggestersTest -Dtests.method=testShutdownDuringBuild -Dtests.seed=52931F3B5B6B1523 -Dtests.multiplier=2 -Dtests.locale=sk-SK -Dtests.timezone=Asia/Oral -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
   [smoker]    [junit4] ERROR   1.37s J0 | InfixSuggestersTest.testShutdownDuringBuild <<<
   [smoker]    [junit4]    > Throwable #1: java.util.concurrent.ExecutionException: junit.framework.AssertionFailedError: Unexpected wrapped exception type, expected CoreIsClosedException
   [smoker]    [junit4]    > 	at __randomizedtesting.SeedInfo.seed([52931F3B5B6B1523:8D1E7D8465024041]:0)
   [smoker]    [junit4]    > 	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
   [smoker]    [junit4]    > 	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
   [smoker]    [junit4]    > 	at org.apache.solr.handler.component.InfixSuggestersTest.testShutdownDuringBuild(InfixSuggestersTest.java:130)
   [smoker]    [junit4]    > 	at java.lang.Thread.run(Thread.java:748)
   [smoker]    [junit4]    > Caused by: junit.framework.AssertionFailedError: Unexpected wrapped exception type, expected CoreIsClosedException
   [smoker]    [junit4]    > 	at org.apache.lucene.util.LuceneTestCase.expectThrows(LuceneTestCase.java:2734)
   [smoker]    [junit4]    > 	at org.apache.solr.handler.component.InfixSuggestersTest.lambda$testShutdownDuringBuild$3(InfixSuggestersTest.java:121)
   [smoker]    [junit4]    > 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   [smoker]    [junit4]    > 	at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:209)
   [smoker]    [junit4]    > 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [smoker]    [junit4]    > 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [smoker]    [junit4]    > 	... 1 more
   [smoker]    [junit4]    > Caused by: java.lang.RuntimeException: Exception during query
   [smoker]    [junit4]    > 	at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:917)
   [smoker]    [junit4]    > 	at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:877)
   [smoker]    [junit4]    > 	at org.apache.solr.handler.component.InfixSuggestersTest.lambda$null$2(InfixSuggestersTest.java:122)
   [smoker]    [junit4]    > 	at org.apache.lucene.util.LuceneTestCase.expectThrows(LuceneTestCase.java:2726)
   [smoker]    [junit4]    > 	... 6 more
   [smoker]    [junit4]    > Caused by: org.apache.solr.common.SolrException: SolrCoreState already closed.
   [smoker]    [junit4]    > 	at org.apache.solr.update.DefaultSolrCoreState.lock(DefaultSolrCoreState.java:186)
   [smoker]    [junit4]    > 	at org.apache.solr.update.DefaultSolrCoreState.getIndexWriter(DefaultSolrCoreState.java:121)
   [smoker]    [junit4]    > 	at org.apache.solr.update.SolrCoreState.getTragicException(SolrCoreState.java:198)
   [smoker]    [junit4]    > 	at org.apache.solr.core.CoreContainer.checkTragicException(CoreContainer.java:1812)
   [smoker]    [junit4]    > 	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:212)
   [smoker]    [junit4]    > 	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2541)
   [smoker]    [junit4]    > 	at org.apache.solr.util.TestHarness.query(TestHarness.java:337)
   [smoker]    [junit4]    > 	at org.apache.solr.util.TestHarness.query(TestHarness.java:319)
   [smoker]    [junit4]    > 	at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:891)
   [smoker]    [junit4]    > 	... 9 more