java.lang.ClassNotFoundException: org.json.JSONException [duplicate]

Question

I'm using Eclipse with Tomcatserver 8. In my Project I'm using WebSockets, AJAX and SSE. When I tried to run the project i get the Errormessag: "java.lang.ClassNotFoundException: org.json.JSONException" I already tried to delete the Tomcatserver and put it back in to the project but it didn't fixed the problem.

This is the Error:

Caused by: java.lang.NoClassDefFoundError: org/json/JSONException
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.getDeclaredMethods(Unknown Source)
    at org.apache.tomcat.websocket.pojo.PojoMethodMapping.<init>(PojoMethodMapping.java:86)
    at org.apache.tomcat.websocket.server.WsServerContainer.addEndpoint(WsServerContainer.java:190)
    at org.apache.tomcat.websocket.server.WsServerContainer.addEndpoint(WsServerContainer.java:278)
    at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:120)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5244)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more
Caused by: java.lang.ClassNotFoundException: org.json.JSONException
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
    ... 15 more

I hope someone can help me.

Madhusudana Reddy Sunnapu · Accepted Answer · 2015-12-12 16:39:33Z

0

The exception indicates it is missing some JSON library in your webapp. Check your web-inf/lib folder and add that jar file.

answered Dec 12, 2015 at 16:39

Madhusudana Reddy Sunnapu

8,2772 gold badges20 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

WeSt Over a year ago

tanks for your answer. But the JSON lib is included. I removed it and put it back again but it didn't work. Here is a screenshot of the lib fs5.directupload.net/images/151212/pbw9ni76.jpg

Madhusudana Reddy Sunnapu Over a year ago

It looks like a classloading problem. Can you place the json jar in common/lib folder of Tomcat and try it.

Collectives™ on Stack Overflow

java.lang.ClassNotFoundException: org.json.JSONException [duplicate]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related