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diff --git a/meshmc/launcher/java/JavaUtils.h b/meshmc/launcher/java/JavaUtils.h
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+++ b/meshmc/launcher/java/JavaUtils.h
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+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program 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 for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *  This file incorporates work covered by the following copyright and
+ *  permission notice:
+ *
+ * Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QStringList>
+
+#include "JavaChecker.h"
+#include "JavaInstallList.h"
+
+#ifdef Q_OS_WIN
+#include <windows.h>
+#endif
+
+QProcessEnvironment CleanEnviroment();
+
+class JavaUtils : public QObject
+{
+	Q_OBJECT
+  public:
+	JavaUtils();
+
+	static QString managedJavaRoot();
+
+	JavaInstallPtr MakeJavaPtr(QString path, QString id = "unknown",
+							   QString arch = "unknown");
+	QList<QString> FindJavaPaths();
+	JavaInstallPtr GetDefaultJava();
+
+#ifdef Q_OS_WIN
+	QList<JavaInstallPtr> FindJavaFromRegistryKey(DWORD keyType,
+												  QString keyName,
+												  QString keyJavaDir,
+												  QString subkeySuffix = "");
+#endif
+};