--- /dev/null
+package org.simantics.acorn.exception;
+
+public class InvalidHeadStateException extends Exception {
+
+ private static final long serialVersionUID = -7291859180968235955L;
+
+ public InvalidHeadStateException() {
+ super();
+ }
+
+ public InvalidHeadStateException(String message, Throwable cause, boolean enableSuppression,
+ boolean writableStackTrace) {
+ super(message, cause, enableSuppression, writableStackTrace);
+ }
+
+ public InvalidHeadStateException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public InvalidHeadStateException(String message) {
+ super(message);
+ }
+
+ public InvalidHeadStateException(Throwable cause) {
+ super(cause);
+ }
+}