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java.lang.NullPointerException: 	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:219)	at kodo.jdbc.meta.InClassNameClassIndicator.loadSubclasses(InClassNameClassIndicator.java:79)	at kodo.jdbc.runtime.JDBCStoreManager.loadSubclasses(JDBCStoreManager.java:1207)	at kodo.jdbc.runtime.JDBCStoreManager.addClassConditions(JDBCStoreManager.java:959)	at kodo.jdbc.runtime.JDBCStoreManager.selectMappings(JDBCStoreManager.java:922)	at kodo.jdbc.runtime.JDBCStoreManager.access$300(JDBCStoreManager.java:32)	at kodo.jdbc.runtime.JDBCStoreManager$SelectImpl.selectInternal(JDBCStoreManager.java:1333)	at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:313)	at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:304)	at kodo.jdbc.query.JDBCExpressionFactory.select(JDBCExpressionFactory.java:137)	at kodo.jdbc.query.JDBCQuery.executeQuery(JDBCQuery.java:111)	at kodo.query.JDOQLQuery$DataStoreQueryExecutor.executeQuery(JDOQLQuery.java:474)	at kodo.query.AbstractQuery.executeWithMap(AbstractQuery.java:693)	at kodo.query.AbstractQuery.executeWithArray(AbstractQuery.java:640)	at kodo.query.AbstractQuery.execute(AbstractQuery.java:622)	at com.transmachina.idiomatica.db.DbSession.get(DbSession.java:536)	at com.transmachina.idiomatica.app.WebDictionaryManager.hasBeenPreviouslyLookedUp(WebDictionaryManager.java:26)	at com.transmachina.idiomatica.app.WebDictionaryManager.doLookup(WebDictionaryManager.java:39)	at com.transmachina.idiomatica.utils.WordSearch.lookupAndReturnMatches(WordSearch.java:374)	at com.transmachina.idiomatica.utils.WordSearch.getWordMatches(WordSearch.java:345)	at com.transmachina.idiomatica.utils.WordSearch.getMatchesWithPosTrimming(WordSearch.java:546)	at com.transmachina.idiomatica.engine.parser.ambiguity.WordAmbiguity.setupWordAmbiguity(WordAmbiguity.java:98)	at com.transmachina.idiomatica.engine.parser.ambiguity.TextAmbiguity.setupTextAmbiguity(TextAmbiguity.java:271)	at com.transmachina.idiomatica.engine.parser.ambiguity.ParsedText.setupParsedText(ParsedText.java:141)	at com.transmachina.idiomatica.engine.presentation.Parser.parseToVectorOfWords(Parser.java:92)	at com.transmachina.idiomatica.engine.presentation.Parser.getWord(Parser.java:377)	at com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:193)	at com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:158)	at com.transmachina.idiomatica.adminTool.frame.translation.FrameTranslation$5.run(FrameTranslation.java:231)