add missed file

Author: GoeLin

test/jdk/java/net/httpclient/whitebox/java.net.http/jdk/internal/net/http/SimpleSSLContextWhiteboxAdapter.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.internal.net.http;
+
+import jdk.test.lib.net.SimpleSSLContext;
+
+import javax.net.ssl.SSLContext;
+
+/**
+ * Adapter for {@link SimpleSSLContext} for whitebox tests.
+ */
+public final class SimpleSSLContextWhiteboxAdapter {
+
+    private SimpleSSLContextWhiteboxAdapter() {}
+
+    /**
+     * {@return a new {@link SSLContext} instance by searching for a key store
+     * file path, and loading the first found one}
+     *
+     * @throws RuntimeException if no key store file can be found or the found
+     * one cannot be loaded
+     */
+    public static SSLContext findSSLContext() {
+        return SimpleSSLContext.findSSLContext("../../../../../lib/jdk/test/lib/net/testkeys", "TLS");
+    }
+
+}