java.lang.ClassNotFoundException: org.hibernate.exception.ConstraintViolationException

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,

This is thrown when the JVM tries to load a particular class and the specified class cannot be found in the classpath. Make sure Apache commons-lang library jar is added to your project's build path and you are using commons-lang3-3.0.jar or greater.

,

Make sure to add org.springframework.core-3.1.0.M2.jar to your project libraries so that org.springframework.core.env.EnvironmentCapable will be loaded.

Solutions on the web

java.lang.ClassNotFoundException: org.hibernate.exception.ConstraintViolationException
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1332)
at org.serv.Servlett.doGet(Servlett.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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