ClassLoader.loadClass() has thrown a NoClassDefFoundError

java.lang.ClassNotFoundException
Javadoc
Thrown when an application tries to load in a class through its string name using:
  • The forName method in class Class.
  • The findSystemClass method in class ClassLoader .
  • The loadClass method in class ClassLoader.

but no definition for the class with the specified name could be found.

As of release 1.4, this exception has been retrofitted to conform to the general purpose exception-chaining mechanism. The "optional exception that was raised while loading the class" that may be provided at construction time and accessed via the {@link #getException()} method is now known as the cause, and may be accessed via the {@link Throwable#getCause()} method, as well as the aforementioned "legacy method." @author unascribed @see java.lang.Class#forName(java.lang.String) @see java.lang.ClassLoader#findSystemClass(java.lang.String) @see java.lang.ClassLoader#loadClass(java.lang.String, boolean) @since JDK1.0

at java.net.URLClassLoader$1.run
at java.security.AccessController.doPrivileged
(source)
at java.net.URLClassLoader.findClass
(source)
at java.lang.ClassLoader.loadClass
(source)
at sun.misc.Launcher$AppClassLoader.loadClass
(source)
at java.lang.ClassLoader.loadClass
(source)
java.lang.NoClassDefFoundError
Javadoc
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. @author unascribed @since JDK1.0

at java.lang.ClassLoader.defineClass1
(source)
at java.lang.ClassLoader.defineClass
(source)
at java.security.SecureClassLoader.defineClass
(source)
at java.net.URLClassLoader.defineClass
(source)
at java.net.URLClassLoader.access$000
at java.net.URLClassLoader$1.run
at java.security.AccessController.doPrivileged
(source)
at java.net.URLClassLoader.findClass
(source)
at java.lang.ClassLoader.loadClass
(source)
at sun.misc.Launcher$AppClassLoader.loadClass
(source)
at java.lang.ClassLoader.loadClass
(source)
16 frames hidden

Typical Exception Messages

  1. org.apache.tools.ant.Task
  2. org/objectweb/asm/commons/EmptyVisitor
  3. scala.ScalaObject
  4. junit/framework/TestCase
  5. com/jgoodies/common/base/SystemUtils
  6. org.apache.hadoop.conf.Configuration
  7. android/os/Handler$Callback
  8. scala.App
  9. backtype/storm/contrib/signals/spout/BaseSignalSpout
  10. bsh.Interpreter

Origin

ClassLoader.loadClass() has thrown a NoClassDefFoundError

java.lang.ClassNotFoundException
14 frames hidden
java.lang.ClassLoader.loadClass
28Web pages

Specific cases

External results for this pattern (27)

  1. Unknown authorvia grokbase.com5 months ago
    org.apache.hadoop.conf.Configuration
    Show stack trace
  2. Mr37037via Stack Overflow5 months ago
    backtype/storm/contrib/signals/spout/BaseSignalSpout
    Show stack trace
  3. Unknown authorvia org.ru5 months ago
    org/objectweb/asm/commons/EmptyVisitor
    Show stack trace
  4. tommcpvia GitHub5 months ago
  5. bsh.Interpreter
    Show stack trace
  6. org.kohsuke.stapler.StaplerFallback
    Show stack trace
  7. Aerionvia Stack Overflow6 months ago
    scala.App
    Show stack trace