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diff --git a/meshmc/launcher/minecraft/launch/VerifyJavaInstall.h b/meshmc/launcher/minecraft/launch/VerifyJavaInstall.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/>.
+ */
+
+#pragma once
+
+#include <launch/LaunchStep.h>
+#ifndef MeshMC_DISABLE_JAVA_DOWNLOADER
+#include "java/download/JavaRuntime.h"
+#include "java/download/JavaDownloadTask.h"
+#endif
+#include "net/NetJob.h"
+
+class VerifyJavaInstall : public LaunchStep
+{
+ Q_OBJECT
+
+ public:
+ explicit VerifyJavaInstall(LaunchTask* parent) : LaunchStep(parent) {};
+ ~VerifyJavaInstall() override = default;
+
+ void executeTask() override;
+ bool canAbort() const override
+ {
+ return false;
+ }
+
+ private:
+ int determineRequiredJavaMajor() const;
+ QString findInstalledJava(int requiredMajor) const;
+ QString javaInstallDir() const;
+#ifndef MeshMC_DISABLE_JAVA_DOWNLOADER
+ void autoDownloadJava(int requiredMajor);
+ void fetchVersionList(int requiredMajor);
+ void fetchRuntimes(const QString& versionId, int requiredMajor);
+ void startDownload(const JavaDownload::RuntimeEntry& runtime,
+ int requiredMajor);
+ void setJavaPathAndSucceed(const QString& javaPath);
+
+ NetJob::Ptr m_fetchJob;
+ QByteArray m_fetchData;
+ std::unique_ptr<JavaDownloadTask> m_downloadTask;
+#endif
+};