declare namespace org {
    namespace eclipse {
        namespace jetty {
            namespace websocket {
                namespace common {
                    namespace extensions {
                        abstract class AbstractExtension extends org.eclipse.jetty.util.component.ContainerLifeCycle implements org.eclipse.jetty.websocket.api.extensions.Extension {
                            public constructor()
                            public dump(arg0: java.lang.Appendable, arg1: java.lang.String | string): void
                            protected dumpWithHeading(arg0: java.lang.Appendable, arg1: java.lang.String | string, arg2: java.lang.String | string, arg3: java.lang.Object): void
                            public init(arg0: org.eclipse.jetty.websocket.common.scopes.WebSocketContainerScope): void
                            public getBufferPool(): org.eclipse.jetty.io.ByteBufferPool
                            public getConfig(): org.eclipse.jetty.websocket.api.extensions.ExtensionConfig
                            public getConnection(): org.eclipse.jetty.websocket.common.LogicalConnection
                            public getName(): string
                            public getNextIncoming(): org.eclipse.jetty.websocket.api.extensions.IncomingFrames
                            public getNextOutgoing(): org.eclipse.jetty.websocket.api.extensions.OutgoingFrames
                            public getPolicy(): org.eclipse.jetty.websocket.api.WebSocketPolicy
                            public incomingError(arg0: java.lang.Throwable): void
                            public isRsv1User(): boolean
                            public isRsv2User(): boolean
                            public isRsv3User(): boolean
                            protected nextIncomingError(arg0: java.lang.Throwable): void
                            protected nextIncomingFrame(arg0: org.eclipse.jetty.websocket.api.extensions.Frame): void
                            protected nextOutgoingFrame(arg0: org.eclipse.jetty.websocket.api.extensions.Frame, arg1: org.eclipse.jetty.websocket.api.WriteCallback, arg2: org.eclipse.jetty.websocket.api.BatchMode): void
                            public setBufferPool(arg0: org.eclipse.jetty.io.ByteBufferPool): void
                            public setConfig(arg0: org.eclipse.jetty.websocket.api.extensions.ExtensionConfig): void
                            public setConnection(arg0: org.eclipse.jetty.websocket.common.LogicalConnection): void
                            public setNextIncomingFrames(arg0: org.eclipse.jetty.websocket.api.extensions.IncomingFrames): void
                            public setNextOutgoingFrames(arg0: org.eclipse.jetty.websocket.api.extensions.OutgoingFrames | org.eclipse.jetty.websocket.api.extensions.OutgoingFrames$$Lambda): void
                            public setPolicy(arg0: org.eclipse.jetty.websocket.api.WebSocketPolicy): void
                            public toString(): string
                            public static class: java.lang.Class<any>
                        }
                    }
                }
            }
        }
    }
}