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

Google's zxing (Zebra Crossing) barcode library's BitMatrix not where it's supposed to be

The javadoc lists the BitMatrix class as being in com.google.zxing.common. com.google.zxing.common Class BitMatrix java.lang.Object com.google.zxing.common.BitMatrix But after I compile the core jar, it is in com.google.zxing.qrcode.encoder. $…
dacracot
  • 22,002
  • 26
  • 104
  • 152
0
votes
1 answer

Why java.lang.ClassNotFoundException when trying to use mediaplayer?

I was trying to run a program with a mediaplayer. Why am I getting this exception? java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.android.myplayer/com.andr oid.myplayer.MediaPlayerDemo_video}:…
Navaneeth Sen
  • 6,315
  • 11
  • 53
  • 82
0
votes
0 answers

Class not found at run time though it's in apk file

I'm trying to run a program on the phone from android studio. It tries to send an email using javax.mail. When running under the debugger, see these errors in the debug console. java.lang.NoClassDefFoundError: Failed resolution of:…
Thiagarajan Hariharan
  • 426
  • 1
  • 4
  • 15
0
votes
1 answer

Moving web app from GlassFish to Tomcat 9 giving java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

I have a web app that has been happliy running on GlassFish 3.1.2 but we are now moving to Tomcat 9. The web app deployed successfully, but when trying access the inner parts we get this: 01-Aug-2019 15:47:21.082 SEVERE [main]…
TenG
  • 3,843
  • 2
  • 25
  • 42
0
votes
1 answer

How to handle hazelcast in case of ClassNotFoundException when deploying application

I'm curious how to handle an application deployment with a running hazelcast cluster. Scenario: I have some tomcat servers all running my application and they are all part of the hazelcast cluster. I now try to deploy a new version of my application…
fx88
  • 43
  • 1
  • 8
0
votes
1 answer

defining route with new or existing class php artisan is giving error class not found. whether predefined routes for same controller is working fine

getting error when on adding new route from new or old controller. from php artisan route:list giving error ReflectionException class 'App\Http\Controller\Classname not exist whether it exist and existing routes with same class working …
Manish
  • 13
  • 1
  • 8
0
votes
0 answers

ClassNotFoundException on custom Application class (not in APK/dex files?)

I'm at a loss on this... I have an app that was previously compiling and working, that now cannot find its own custom Application class. I looked in the APK at each dex file and don't see it anywhere. I rarely update the app code anymore, so it's…
MCLLC
  • 496
  • 4
  • 12
0
votes
1 answer

org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.component.PojoComponentTuplizer]

My Hibernate version is 4.3 My Class Career has a composite primary key CareerId, and when use hibernate tool reveng.xml to generate, class Career and class CareerId is generated, but only Career.hbm.xml is generated, CareerId.hbm.xml is not…
user1169587
  • 1,104
  • 2
  • 17
  • 34
0
votes
1 answer

ClassNotFoundException for InnerClass because Compiler generates classpath differently

I am currently developing an Android Library Module. But today we got a strange error from the jvm. The exception stack is as follows E/FeedbackRepository: 'this' aufgerufen D/AndroidRuntime: Shutting down VM E/AndroidRuntime: FATAL EXCEPTION: main …
Lukas Willin
  • 345
  • 3
  • 9
0
votes
3 answers

My app stopped when adding a RecyclerView Layoutmanager

I'm setting up an app for a Firebase Realtime Database. For this, I want to give out the data in a vertical Layout. The Problem is that the app stopped when I add the LinearLayoutManager. This is the Tutorial I followed:…
Stefan Mueller
  • 1
  • 2
0
votes
1 answer

How do I load classes outside of the program?

I'm trying to make a classloader/modloader for my program. So far I have this loader: // methodTB - swing text field for method // classTB - swing text field for class // classCB - swing check box for default class (which is the file…
ggtylerr
  • 31
  • 4
0
votes
2 answers

PackagePropertiesMarshaller$NamespaceImpl not found using Apache poi with Java Servlet

I've been trying to build my first web application using IntelliJ and Tomcat, and one of the tasks is being able to upload and process an Excel sheet file. So, I looked up online, and found the Apache POI library that can help me parse an Excel…
Wenhao Ryan
  • 21
  • 5
0
votes
1 answer

Class '\Laravel\Socialite\Two\TwitterProvider' not found Error

I am doing some workaround to allow the user to link their social media account to our app as well as directly create an account using their social media accounts. I have followed this strategy here for my linking of user's social media account for…
Eem Jee
  • 1,239
  • 5
  • 30
  • 64
0
votes
1 answer

Where in SpringHow in Spring Boot do I solve a "java.lang.NoClassDefFoundError: org/springframework/data/mapping/context/MappingContext"?

I"m using Java 8 and Spring Boot. Trying to build a simple REST application that sits on a MongoDB. I have this in my Gradle build file dependencies { implementation 'org.springframework.boot:spring-boot-starter-data-mongodb:2.1.5.RELEASE' …
Dave
  • 15,639
  • 133
  • 442
  • 830
0
votes
0 answers

ClassNotFoundException for dependent jar file of a java WebProject

I'm currently updating a legacy code, and below is the error occured. SEVERE: Servlet.service() for servlet [RequestController] in context with path [/ngsf] threw exception [Servlet execution threw an exception] with root cause…
lemoncodes
  • 2,371
  • 11
  • 40
  • 66
1 2 3
…
99 100