juneau-core/src/main/java/org/apache/juneau/LockedException.java

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package org.apache.juneau;

/**
 * Exception that gets thrown when trying to modify settings on a locked {@link Lockable} object.
 * <p>
 * A locked exception indicates a programming error.
 * Certain objects that are meant for reuse, such as serializers and parsers, provide
 * the ability to lock the current settings so that they cannot be later changed.
 * This exception indicates that a setting change was attempted on a previously locked object.
 */
public final class LockedException extends RuntimeException {

	private static final long serialVersionUID = 1L;

	LockedException() {
		super("Object is locked and object settings cannot be modified.");
	}
}