NoClassDefFoundError

  • NoClassDefFoundError is thrown when the JVM or a ClassLoader cannot find the definition of a class during runtime, even if it was present during compilation.

  • This error typically indicates that a required class file is missing from the classpath or that there is a class loading conflict.

  • NoClassDefFoundError extends LinkageError and provides constructors to create instances with or without a detailed message.

  • It inherits methods from Throwable for stack trace handling, error message retrieval, and cause analysis.

public class NoClassDefFoundError extends LinkageError

Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.

The searched-for class definition existed when the currently executing class was compiled, but the definition can no longer be found.

Public Constructor Summary

NoClassDefFoundError()
Constructs a NoClassDefFoundError with no detail message.
NoClassDefFoundError(String s)
Constructs a NoClassDefFoundError with the specified detail message.

Inherited Method Summary

Public Constructors

public NoClassDefFoundError ()

Constructs a NoClassDefFoundError with no detail message.

public NoClassDefFoundError (String s)

Constructs a NoClassDefFoundError with the specified detail message.

Parameters
s the detail message.