[JENKINS] Lucene-Solr-trunk-Windows-Java6-64 - Build # 540 - Failure!

Build: http://jenkins.sd-datasolutions.de/job/Lucene-Solr-trunk-Windows-Java6-64/540/

1 tests failed.
REGRESSION:  org.apache.solr.spelling.suggest.SuggesterWFSTTest.testRebuild

Error Message:
Exception during query

Stack Trace:
java.lang.RuntimeException: Exception during query
	at __randomizedtesting.SeedInfo.seed([3EC80CA08A282F97:65EDAEE3BE28550D]:0)
	at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:459)
	at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:426)
	at org.apache.solr.spelling.suggest.SuggesterTest.testRebuild(SuggesterTest.java:105)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1969)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.access$1100(RandomizedRunner.java:132)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:814)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:875)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:889)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:53)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:50)
	at org.apache.lucene.util.TestRuleFieldCacheSanity$1.evaluate(TestRuleFieldCacheSanity.java:32)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesInvariantRule$1.evaluate(SystemPropertiesInvariantRule.java:55)
	at org.apache.lucene.util.TestRuleReportUncaughtExceptions$1.evaluate(TestRuleReportUncaughtExceptions.java:68)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)