https://openjdk.java.net/ 
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package java.lang;


Signals that a method has been invoked at an illegal or
inappropriate time.  In other words, the Java environment or
Java application is not in an appropriate state for the requested
operation.

Author: Jonni Kanerva
Since:  1.1
/**
 * Signals that a method has been invoked at an illegal or
 * inappropriate time.  In other words, the Java environment or
 * Java application is not in an appropriate state for the requested
 * operation.
 *
 * @author  Jonni Kanerva
 * @since   1.1
 */
public
class IllegalStateException extends RuntimeException {
    
Constructs an IllegalStateException with no detail message.
A detail message is a String that describes this particular exception.

/**
     * Constructs an IllegalStateException with no detail message.
     * A detail message is a String that describes this particular exception.
     */
    public IllegalStateException() {
        super();
    }

    
Constructs an IllegalStateException with the specified detail
message.  A detail message is a String that describes this particular
exception.

Params:
  • s – the String that contains a detailed message
/**
     * Constructs an IllegalStateException with the specified detail
     * message.  A detail message is a String that describes this particular
     * exception.
     *
     * @param s the String that contains a detailed message
     */
    public IllegalStateException(String s) {
        super(s);
    }

    
Constructs a new exception with the specified detail message and
cause.

Note that the detail message associated with cause is
not automatically incorporated in this exception's detail
message.

Params:
  • message – the detail message (which is saved for later retrieval by the Throwable.getMessage() method).
  • cause – the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
Since:1.5
/**
     * Constructs a new exception with the specified detail message and
     * cause.
     *
     * <p>Note that the detail message associated with <code>cause</code> is
     * <i>not</i> automatically incorporated in this exception's detail
     * message.
     *
     * @param  message the detail message (which is saved for later retrieval
     *         by the {@link Throwable#getMessage()} method).
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link Throwable#getCause()} method).  (A {@code null} value
     *         is permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since 1.5
     */
    public IllegalStateException(String message, Throwable cause) {
        super(message, cause);
    }

    
Constructs a new exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for exceptions that are little more than wrappers for other throwables (for example, PrivilegedActionException). 
Params:
  • cause – the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
Since: 1.5
/**
     * Constructs a new exception with the specified cause and a detail
     * message of {@code (cause==null ? null : cause.toString())} (which
     * typically contains the class and detail message of {@code cause}).
     * This constructor is useful for exceptions that are little more than
     * wrappers for other throwables (for example, {@link
     * java.security.PrivilegedActionException}).
     *
     * @param  cause the cause (which is saved for later retrieval by the
     *         {@link Throwable#getCause()} method).  (A {@code null} value is
     *         permitted, and indicates that the cause is nonexistent or
     *         unknown.)
     * @since  1.5
     */
    public IllegalStateException(Throwable cause) {
        super(cause);
    }

    static final long serialVersionUID = -1848914673093119416L;
}