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package java.lang;

Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found. This exception differs from ClassNotFoundException in that ClassNotFoundException is a checked exception, whereas this exception is unchecked. 
Note that this exception may be used when undefined type variables are accessed as well as when types (e.g., classes, interfaces or annotation types) are loaded. In particular, this exception can be thrown by the API used to read annotations
reflectively. 
Author:
 Josh Bloch
See Also:
AnnotatedElement
Since:
1.5/**
 * Thrown when an application tries to access a type using a string
 * representing the type's name, but no definition for the type with
 * the specified name can be found.   This exception differs from
 * {@link ClassNotFoundException} in that {@code ClassNotFoundException} is a
 * checked exception, whereas this exception is unchecked.
 *
 * <p>Note that this exception may be used when undefined type variables
 * are accessed as well as when types (e.g., classes, interfaces or
 * annotation types) are loaded.
 * In particular, this exception can be thrown by the {@linkplain
 * java.lang.reflect.AnnotatedElement API used to read annotations
 * reflectively}.
 *
 * @author  Josh Bloch
 * @see     java.lang.reflect.AnnotatedElement
 * @since 1.5
 */
public class TypeNotPresentException extends RuntimeException {
    @java.io.Serial
    private static final long serialVersionUID = -5101214195716534496L;

    
The type name.
/**
     * The type name.
     */
    private String typeName;

    
Constructs a TypeNotPresentException for the named type with the specified cause. 
Params:
typeName – the fully qualified name of the unavailable type
cause – the exception that was thrown when the system attempted to load the named type, or null if unavailable or inapplicable/**
     * Constructs a {@code TypeNotPresentException} for the named type
     * with the specified cause.
     *
     * @param typeName the fully qualified name of the unavailable type
     * @param cause the exception that was thrown when the system attempted to
     *    load the named type, or {@code null} if unavailable or inapplicable
     */
    public TypeNotPresentException(String typeName, Throwable cause) {
        super("Type " + typeName + " not present", cause);
        this.typeName = typeName;
    }

    
Returns the fully qualified name of the unavailable type.
Returns:
the fully qualified name of the unavailable type/**
     * Returns the fully qualified name of the unavailable type.
     *
     * @return the fully qualified name of the unavailable type
     */
    public String typeName() { return typeName;}
}