Started work on upgrading to 1.16.1. Not in a compilable state yet

remappedSrc/dan200/computercraft/api/lua/LuaException.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of the public ComputerCraft API - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2019. This API may be redistributed unmodified and in full only.
+ * For help using the API, and posting your mods, visit the forums at computercraft.info.
+ */
+
+package dan200.computercraft.api.lua;
+
+import javax.annotation.Nullable;
+
+/**
+ * An exception representing an error in Lua, like that raised by the {@code error()} function.
+ */
+public class LuaException extends Exception
+{
+    private static final long serialVersionUID = -6136063076818512651L;
+    private final int level;
+
+    public LuaException()
+    {
+        this( "error", 1 );
+    }
+
+    public LuaException( @Nullable String message )
+    {
+        this( message, 1 );
+    }
+
+    public LuaException( @Nullable String message, int level )
+    {
+        super( message );
+        this.level = level;
+    }
+
+    /**
+     * The level this error is raised at. Level 1 is the function's caller, level 2 is that function's caller, and so
+     * on.
+     *
+     * @return The level to raise the error at.
+     */
+    public int getLevel()
+    {
+        return level;
+    }
+}