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Questions tagged [classnotfoundexception]

The Java exception thrown when an application tries to load a class by name but is not able to find the class.

The Java exception thrown when an application tries to load a class by name. Usually raised by one of:

  • the forName(String) method in class Class
  • the findSystemClass(String) method in class ClassLoader
  • the loadClass(String) method in class ClassLoader

when no definition for the class with the specified name could be found in the .

Don't confuse it with , it's a different kind of error, see the following links for more details:

2221 questions
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Why are my stub classes not being found?

I am running an RMI server on a VM, but I keep getting this error: Failure during Name registration: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling…
ryanthescot
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How to send object over java socket (java networking) and read it

I want to make chat application using java networking. So far I have made server and client class in two different projects and each of them have the same Message class: package client; import java.io.Serializable; public class Message implements…
Jovan Dukic
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java.lang.ClassNotFoundException: org.hibernate.annotations.common.reflection.ReflectionManager

The program is written using JSP and Servlets. For Database actions is used Hibernate. When I try to save data into database my program throws an exception. I have found at stackoverflow some answers, but they didn't help me. I use IntelliJ IDEA and…
Андрей Суручану
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java.lang.ClassNotFoundException: con.mysql.jdbc.Driver 1

I have written down the code in Eclipse .. I even put connector jar file in project and set classpath too but it still throws RuntimeException. package len; import java.sql.*; public class dbcon { public static void main(String[] args) { …
Lenin Kumam
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Why am I getting a java.lang.ClassNotFoundException?

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver i am getting this error after executing apache in Eclipse helios and i am using MYSQLyog ultimate please help...how to remove this error...??
Onkar Dhane
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JAVA RMI ClassNotFound

I have spent the last couple of days attempting to get a basic JAVA RMI tutorial server to launch. I started by launching the command-line and entering the following: rmiregistry java -classpath E:\Rmi\src\*…
Ashley Dewald
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ClassNotFoundException Tomcat 7 Server

I'm getting issues when I try to load something on my Tomcat 7 Server via Eclipse. I already downloaded an example and tried that one, but in my browser it only shows me that the resource is not available. Aug 08, 2018 2:23:51 PM…
Phillip S
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java multiple projects ClassNotFoundException

I have 2 java projects ProjectA (java web app) and ProjectB (contains other java classes) in my eclipse IDE. e.g. ProjectA ProjectB |_HelloWorld.java |_PrintHelloWorld.java |_HelloWorld( …
mh377
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Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger

Here is the pom.xml for our single module UTF-8 1.7.7 1.2.17 …
hippalus
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Bazel java.lang.ClassNotFoundException: javax.servlet.http.HttpSessionIdListener

I just started porting my project to bazel. I have a java project. In my main file i have this code ServletContextHandler handler = new ServletContextHandler(ServletContextHandler.SESSIONS); I am able to build the code well...however when i try to…
flexxxit
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SQLNonTransientConnectionException Connecting with MySQL in Eclipse

I am trying to write code for bringing a text file's data into a database using Eclipse, MySQL Workbench, and JDBC 8.0.11. It is giving me a ClassNotFoundException. I have looked at multiple other questions, and they have all been fixed by putting…
hpotter_otter
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java- Android Studio [ClassNotFoundException]

I got problem when change name packages in android studio, first i use some open source project, then when i want to change the previous packages some of function cant be used, the error message is "ClassNotFoundException:yuku.kpri.model.Song" even…
Zee
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Log4j Class missing on Weblogic

I have deployed a war file on Oracle Weblogic. War files contain all the required libraries in WEB-INF/lib. But whenever I am trying to visit my webpage, it gives error of java.lang.NoClassDefFoundError: org/apache/log4j/Logger.
Rahul Thakur
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R.string Resources$NotFoundException Error on android app

i have a multilanguage android app..I put this Top Ristoranti in res/values-it/strings.xml and this Top Restaurants in res/values-en/strings.xml. in java i use this…
Ettore Panini
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Instantiated private class -> null pointer exception

Hi awesome person! I have a problem... I get a NullPointerException when my test case reaches allEdges.add(newEdge); in the connectNodes method. I think it has something to do with Edge newEdge = new Edge( n1, n2, weight ); previously in that…
Alexander E
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