Hibernate java.lang.ClassNotFoundException：註解

Question

時間可能是一個基本的問題，但我找不到答案。我意識到，例外意味着班上的人不在，但你在哪裏找到這個東西？

堆棧跟蹤：

WARN Worker-0 org.hibernate.cfg.AnnotationConfiguration - Unable to apply constraints on DDL for Annotations 
java.lang.ClassNotFoundException: Annotations 
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506) 
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422) 
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410) 
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:169) 
    at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192) 
    at org.hibernate.cfg.AnnotationConfiguration.applyHibernateValidatorLegacyConstraintsOnDDL(AnnotationConfiguration.java:463) 
    at org.hibernate.cfg.AnnotationConfiguration.applyConstraintsToDDL(AnnotationConfiguration.java:428) 
    at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:403) 
    at org.hibernate.cfg.Configuration.generateSchemaCreationScript(Configuration.java:920) 
    at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:129) 
    at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:91) 
    at org.hibernate.tool.hbm2x.Hbm2DDLExporter.doStart(Hbm2DDLExporter.java:159) 
    at org.hibernate.tool.hbm2x.AbstractExporter.start(AbstractExporter.java:95) 
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate$1.execute(CodeGenerationLaunchDelegate.java:408) 
    at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63) 
    at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:72) 
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.runExporters(CodeGenerationLaunchDelegate.java:383) 
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:310) 
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:853) 
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:702) 
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:924) 
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1128) 
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) 

TIA

Answer 1

javassist庫是從classpath中失蹤。