In the first occurance it is caused by ClassNotFoundException. I will paste two stacktraces as it is different for the first and all other occurences.
I believe all classes encountering this issue are from war. Here is the content of jboss-deployment-structure.xml: META-INF/maven/cz.epas/EpascustomerHostConnector-ear/pom.properties META-INF/maven/cz.epas/EpascustomerHostConnector-ear/ Here is the ear structure (I can also provide content of jar and war submodules if needed):ĮpascustomerHostConnector-war-1.11.10.warĮpascustomerHostConnector-ejb-1.11.10.jar NoClassDefFoundErrorExample.We have alraedy checked for duplicates but were not able to see any.
Then, we define a NoClassDefFoundErrorExample class that contains a static instance of the Test class: ("A new instance of the Test class was created!") First, we define a Test class with a simple constructor: To begin with, let’s demonstrate an example that throws the aforementioned error. In general, this is a difficult error to deal with and through this tutorial, we will present a number of different solutions. This error also indicates that the definition of the class was found during the compilation of the application, but it is not available in the application’s classpath during runtime. The NoClassDefFoundError in JavaĪs we have already mentioned, the NoClassDefFoundError is thrown when the definition of class in not available during runtime. The Structure of NoClassDefFoundError ConstructorsĬreates an instance of the NoClassDefFoundError class.Ĭreates an instance of the NoClassDefFoundError class, using the specified string as message.
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Also, it is important to mention that the definition of the class existed when the application code was compiled, but the definition can no longer be found in the runtime.įinally, the NoClassDefFoundError exists since the first version of Java. The definition of a class can be requested during a method call, or while creating a new instance using a new expression. It extends the LinkageError class, which is used to indicate error cases, where a class has a dependency on some other class and that class has incompatibly changed after the compilation. This error is thrown when the Java Virtual Machine (JVM) or an instance of the ClassLoader class tries to load the definition of a class, but the definition could not be found.
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In this tutorial we will discuss How to solve No Class Def Found Error ( NoClassDefFoundError).
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