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Ruhezustand-Fehler - Erste SessionFactory-Erstellung failed.java.lang.NoClassDefFoundError: org/apache/commons/collection/SequencedHashMap

Ruhezustand - Erstes Erstellen der SessionFactory fehlgeschlagen.java.lang.NoClassDefFoundError: org / apache / commons / collections / SequencedHashMap

Dies ist ein häufiger Fehler im Ruhezustand, der durch die fehlende Abhängigkeitsbibliothek - Apache Common Collection - verursacht wird. 

Initial SessionFactory creation failed.java.lang.NoClassDefFoundError: org/apache/commons/collections/SequencedHashMap
Exception in thread "main" java.lang.ExceptionInInitializerError
    at com.example.persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:18)
    at com.example.persistence.HibernateUtil.(HibernateUtil.java:8)
    at com.example.common.App.main(App.java:17)
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/collections/SequencedHashMap
    at org.hibernate.mapping.Table.(Table.java:33)
    at org.hibernate.cfg.Mappings.addTable(Mappings.java:165)
    at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:290)
    at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:273)
    at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:144)
    at org.hibernate.cfg.Configuration.add(Configuration.java:669)
    at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:504)
    at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
    at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
    at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
    at com.example.persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:13)
    ... 2 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.SequencedHashMap
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    ... 17 more

Lösung

Sie können die Bibliothek hier herunterladen -http://commons.apache.org/collections/

Or

Fügen Sie die Abhängigkeit in Mavens pom.xml hinzu 

      
        commons-collections
        commons-collections
        3.2.1
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