eclipse-platform
diff --git a/‎tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/EchoHttpServer.java‎
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+/*******************************************************************************
+ * Copyright (c) 2025 Kichwa Coders Canada, Inc.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package org.eclipse.swt.tests.junit;
+
+import java.io.BufferedReader;
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpServer;
+
+public class EchoHttpServer implements Closeable {
+
+	private HttpServer server;
+
+	public EchoHttpServer() throws IOException {
+		InetSocketAddress addr = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0);
+		server = HttpServer.create(addr, 0);
+		createHandlers();
+		server.start();
+	}
+
+	protected void createHandlers() {
+		server.createContext("/get/echo", this::handleGetEcho);
+		server.createContext("/post/echo", this::handlePostEcho);
+	}
+
+	@Override
+	public void close() {
+		server.stop(0);
+	}
+
+	public int port() {
+		return server.getAddress().getPort();
+	}
+
+	public String getEchoUrl(String msg) {
+		return "http://localhost:" + port() + "/get/echo?msg=" + URLEncoder.encode(msg, StandardCharsets.UTF_8);
+	}
+
+	public String postEchoUrl() {
+		return "http://localhost:" + port() + "/post/echo";
+	}
+
+	protected void handleGetEcho(HttpExchange exchange) throws IOException {
+		if (!"GET".equalsIgnoreCase(exchange.getRequestMethod())) {
+			exchange.sendResponseHeaders(405, -1);
+			return;
+		}
+
+		String msg = extractMessageFromQuery(exchange.getRequestURI().getQuery());
+		respond(exchange, msg);
+	}
+
+	protected void handlePostEcho(HttpExchange exchange) throws IOException {
+		if (!"POST".equalsIgnoreCase(exchange.getRequestMethod())) {
+			exchange.sendResponseHeaders(405, -1);
+			return;
+		}
+
+		byte[] bodyBytes = exchange.getRequestBody().readAllBytes();
+		String body = new String(bodyBytes, StandardCharsets.UTF_8);
+
+		respond(exchange, body);
+	}
+
+	private String extractMessageFromQuery(String query) {
+		if (query == null)
+			return "";
+		// XXX: This is not real/complete query decoding, add more
+		// as needed if tests require it
+		for (String part : query.split("&")) {
+			if (part.startsWith("msg=")) {
+				return URLDecoder.decode(part.substring(4), StandardCharsets.UTF_8);
+			}
+		}
+		return "";
+	}
+
+	private void respond(HttpExchange exchange, String text) throws IOException {
+		var html = expectedResponse(text);
+		byte[] bytes = html.getBytes(StandardCharsets.UTF_8);
+
+		exchange.sendResponseHeaders(200, bytes.length);
+		try (OutputStream os = exchange.getResponseBody()) {
+			os.write(bytes);
+		}
+	}
+
+	public String expectedResponse(String text) {
+		var html = String.format("""
+				<!DOCTYPE html>
+				<html>
+				<head>
+				    <title>%s</title>
+				</head>
+				<body>
+				    <h1>This is the SWT Test Echo Http Server</h1>
+				    <p>This is the echo message (also in title): %s</p>
+				</body>
+				</html>
+				""", text, text);
+		return html;
+	}
+
+	public static void main(String[] args) throws IOException {
+		try (var server = new EchoHttpServer()) {
+			System.out.println("started on port " + server.port());
+			System.out.println("Try visiting " + server.getEchoUrl("Hello SWT"));
+			System.out.println("Will shutdown by pressing newline");
+			new BufferedReader(new InputStreamReader(System.in)).readLine();
+		}
+		System.out.println("shutdown");
+	}
+
+}