declare namespace org {
    namespace eclipse {
        namespace jetty {
            namespace util {
                class CompletableCallback$State extends java.lang.Enum<org.eclipse.jetty.util.CompletableCallback$State> {
                    public static readonly IDLE: org.eclipse.jetty.util.CompletableCallback$State
                    public static readonly SUCCEEDED: org.eclipse.jetty.util.CompletableCallback$State
                    public static readonly FAILED: org.eclipse.jetty.util.CompletableCallback$State
                    public static readonly COMPLETED: org.eclipse.jetty.util.CompletableCallback$State
                    public static values(): org.eclipse.jetty.util.CompletableCallback$State[]
                    public static valueOf(arg0: java.lang.String | string): org.eclipse.jetty.util.CompletableCallback$State
                    public static class: java.lang.Class<any>
                }
            }
        }
    }
}