Potential fix for jdk.internal.misc package not found

SpigotCore/CompileDummy/build.gradle.kts

@@ -0,0 +1,22 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+plugins {
+    steamwar.java
+}

SpigotCore/CompileDummy/src/jdk/internal/misc/Unsafe.java

@@ -0,0 +1,30 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package jdk.internal.misc;
+
+public class Unsafe {
+
+    public static Unsafe getUnsafe() {
+        throw new UnsupportedOperationException();
+    }
+
+    public native Object allocateInstance(Class<?> cls)
+            throws InstantiationException;
+}

SpigotCore/CompileDummy/src/org/eclipse/openj9/criu/CRIUSupport.java

@@ -0,0 +1,57 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.eclipse.openj9.criu;
+
+import java.nio.file.Path;
+
+public class CRIUSupport {
+
+    public static boolean isCheckpointAllowed() {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport(Path path) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setGhostFileLimit(long limit) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setAutoDedup(boolean autoDedup) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setShellJob(boolean shellJob) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setFileLocks(boolean fileLocks) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public CRIUSupport setLogFile(String logFile) {
+        throw new UnsupportedOperationException("This is a Dummy");
+    }
+
+    public void checkpointJVM() throws JVMCRIUException {
+        throw new JVMCRIUException();
+    }
+}

SpigotCore/CompileDummy/src/org/eclipse/openj9/criu/JVMCRIUException.java

@@ -0,0 +1,26 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.eclipse.openj9.criu;
+
+import lombok.experimental.StandardException;
+
+@StandardException
+public class JVMCRIUException extends Exception {
+}