Stack Overflow
Stack Overflow

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
0
votes
1 answer

ClassNotFoundException when running on command line but runs fine on IntelliJ IDEA

So I was just trying out a simple JDBC beginners code that retrieves table rows. It worked well when I ran it on IntelliJ IDEA. but it won't run when I try to run it using the command line. I have gone through many similar questions but none of them…
suketu Patel
  • 15
  • 1
  • 8
0
votes
2 answers

tomcat 6 not looking for classes in webapps folder at startup

I have problem where when I start tomcat it logs ClassNotFoundException exceptions in the localhost.log file. I run it under Windows 7. Everything works. The only way I was able to stop getting the CNFE exceptions was moving all my…
MatBanik
  • 26,356
  • 39
  • 116
  • 178
0
votes
0 answers

Why do I get a ClassNotFoundException when the class exists

I have a folder on my computer where I store all my code for every language and within this folder I have a folder with my java codes and projects. Currently I have the following layout in terms of folders and files: Java /TD3 /fr …
Max Michel
  • 575
  • 5
  • 20
0
votes
1 answer

Why am I getting ClassNotFoundException with ObjectInputStream.readObject()?

The following client code accepts a "Guest" object from the server: protected static void sendLoginRequest(String email, String password) { try( Socket socket = new Socket("127.0.0.1", 44444); BufferedReader in = new…
AyyshKeychumm
  • 35
  • 4
0
votes
1 answer

Google Play Service Leadrboard Error using Unity 2018 (java.lang.ClassNotFoundException: com.google.games.bridge.TokenFragment)

I want to implement a Leaderboard in my Android Mobile App using Unity. I am using: Unity 2018.2.18f1 (Mac) Java Development Kit (jdk.1.8.0_191) Google Play Games Plugin 0.9.57 [current version 1.1.2019] Google Play Services are being activated…
M_NEN
  • 135
  • 1
  • 3
  • 13
0
votes
1 answer

Hazelcast ClassNotFoundError on dedicated Member for HazelClient Replicated Map remove

I recently had trouble with Hazelcast using ReplicatedMaps in a Dedicated Server / Hazelcast Client environment. I made a Stackoverflow post for it and a Hazelcast Ticket was made for it. Hazelcast ClassNotFound using Near Cache in Client I…
magicroomy
  • 395
  • 1
  • 6
  • 19
0
votes
1 answer

Java Webstart ClassNotFoundException WebSockets

I'm attempting to convert a rather complex application that uses several modules into using webstart instead of the C# equivalent. (I'm aware that webstart is deprecated and is going away. This is a temporary solution) I am using…
Tacitus86
  • 1,314
  • 2
  • 14
  • 36
0
votes
0 answers

Keep getting null pointer exception and classnotfound exception when trying to connect my database to my log in form?

I've only recently started coding in java, I have been trying to connect my phpadmin database to my java log in form in netbeans. I have tried on my own and followed solutions and tutorials to try and fix but can't seem to figure out what the issue…
Matthew Robinson
  • 21
  • 6
0
votes
0 answers

Jasper Exception On AWS EC2 Server but not on localhost

I made a JAVA REST APIs Project with JSP Web Files. And When I build and start the tomcat server on localhost, it works as in all REST APIs and JSP Web File and Servlets too. But when I upload this on my AWS EC2 Instance, it is working just in doing…
Sumit Kumar Sagar
  • 23
  • 1
  • 11
0
votes
1 answer

Java - why does this input not generate ClassNotFoundException

While I am using reflection I came upon this error. I have a class named Test1, and when I try to get a Class object of it by entering test1 as input to Class.forName() it generates LinkageError instead of ClassNotFoundException. Why does the…
Donkey King
  • 87
  • 1
  • 8
0
votes
2 answers

ClassNotFoundError when I run the class outside of eclipse

I currently try to run java code in Maxmsp using a mxj object, and I want to load some classes inside of the code. But I always get the errors, although the code runs properly in eclipse. What is the problem? This is my code. If I bang in Maxmsp,…
Kiyu
  • 13
  • 5
0
votes
0 answers

how Class.forName() works in java

I have a web application and I am loading a class using Class.forname("com.test.abc"), and this abc class is present in different jar, all jars are present in web-inf/lib folder. but still i am getting ClassNotFoundException. How does…
XYZ
  • 27
  • 6
0
votes
2 answers

java.lang.ClassNotFoundException: javax.persistence.criteria.Selection

I'm launching tomcat server with a jpa project.I got the error. java.lang.ClassNotFoundException: javax.persistence.criteria.Selection this is my pom.xml javax.servlet …
MarsForever
  • 21
  • 1
  • 6
0
votes
0 answers

Unable to launch application <23 SDK version java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider:

I am able to run application on android api 23+ but on device with api 22 its not possible due to this error java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider: java.lang.ClassNotFoundException: Didn't find…
pierre002
  • 1
  • 1
0
votes
2 answers

Error: java.lang.ClassNotFoundException: org.jdom2.Document ---- java parsing xml on terminal

I am working with java and I am trying to parse an xml document. The code works in eclipse but when I try to run it on the terminal I get this error. java.lang.ClassNotFoundException: org.jdom2.Document I am using the org.jdom2.Document as a data…
fukes14
  • 1
1 2 3
…
99 100