remove GSON as it doesn't work on Java 9 or newer

Author: FirEmerald

.classpath

@@ -18,10 +18,16 @@
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
 		<attributes>
-			<attribute name="module" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="lib" path="org.eclipse.jdt.annotation_2.2.600.v20200408-1511.jar"/>
+	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>

mcms.xml

@@ -118,11 +118,6 @@
 			<groupId>org.lwjgl</groupId>
 			<artifactId>lwjgl-opengl</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>com.google.code.gson</groupId>
-			<artifactId>gson</artifactId>
-			<version>2.8.5</version>
-		</dependency>
 		<dependency>
 			<groupId>org.lwjglx</groupId>
 			<artifactId>lwjgl3-awt</artifactId>

src/main/java/firemerald/mcms/api/data/Element.java

@@ -5,26 +5,16 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.math.BigDecimal;
-import java.math.BigInteger;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Map.Entry;
-import java.util.TreeSet;
 
 import javax.xml.transform.TransformerException;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.Node;
 
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonPrimitive;
-import com.google.gson.internal.LazilyParsedNumber;
-
 import firemerald.mcms.api.data.attributes.AttributeBoolean;
 import firemerald.mcms.api.data.attributes.AttributeByte;
 import firemerald.mcms.api.data.attributes.AttributeDouble;
@@ -278,284 +268,4 @@ public void setXML(Document doc, Node parent)
 		getAttributes().forEach((name, attribute) -> element.setAttribute(name, attribute.getString()));
 		((List<Element>) getChildren()).forEach(child -> child.setXML(doc, element));
 	}
-	
-	public static Element loadJSON(JsonElement element)
-	{
-		String name = "root";
-		if (element instanceof JsonObject)
-		{
-			JsonObject object2 = (JsonObject) element;
-			if (object2.has("#name")) name = object2.get("#name").getAsString();
-		}
-		Element el = new Element(name);
-		el.loadFromJSON(element);
-		return el;
-	}
-	
-	public void loadFromJSON(JsonElement element)
-	{
-		if (element instanceof JsonObject) loadFromJSON((JsonObject) element);
-		else if (element instanceof JsonArray) loadFromJSON((JsonArray) element);
-		else if (element instanceof JsonPrimitive) loadFromJSON((JsonPrimitive) element);
-	}
-	
-	public void loadFromJSON(JsonObject object)
-	{
-		object.entrySet().forEach(entry -> {
-			String name = entry.getKey();
-			if (name.equals("#value"))
-			{
-				this.setValue(entry.getValue().getAsString());
-			}
-			else if (!name.equals("#name"))
-			{
-				JsonElement element = entry.getValue();
-				if (element instanceof JsonPrimitive) setAttribute(name, (JsonPrimitive) element);
-				else
-				{
-					if (element instanceof JsonObject)
-					{
-						JsonObject object2 = (JsonObject) element;
-						if (object2.has("#name")) name = object2.get("#name").getAsString();
-					}
-					Element el = this.addChild(name);
-					el.loadFromJSON(element);
-				}
-			}
-		});
-	}
-	
-	/*
-	 * no children and all attributes have positive integer names
-	 * or
-	 * no attributes and all children have positive integer names
-	 */
-	public void loadFromJSON(JsonArray array)
-	{
-		boolean isPrimitive = true;
-		for (int i = 0; i < array.size(); i++) if (!(array.get(i) instanceof JsonPrimitive))
-		{
-			isPrimitive = false;
-			break;
-		}
-		for (int i = 0; i < array.size(); i++)
-		{
-			if (isPrimitive) setAttribute(Integer.toString(i), (JsonPrimitive) array.get(i));
-			else
-			{
-				JsonElement element2 = array.get(i);
-				Element el = this.addChild(Integer.toString(i));
-				el.loadFromJSON(element2);
-			}
-		}
-	}
-	
-	/*
-	 * value != null, no attributes, no children.
-	 */
-	public void loadFromJSON(JsonPrimitive primitive)
-	{
-		this.setValue(primitive.getAsString());
-	}
-	
-	public void setAttribute(String name, JsonPrimitive value)
-	{
-		if (value.isString()) this.setString(name, value.getAsString());
-		else if (value.isBoolean()) this.setBoolean(name, value.getAsBoolean());
-		else if (value.isNumber())
-		{
-			Number num = value.getAsNumber();
-			if (num instanceof Byte) this.setByte(name, value.getAsByte());
-			else if (num instanceof Short) this.setShort(name, value.getAsShort());
-			else if (num instanceof Integer) this.setInt(name, value.getAsInt());
-			else if (num instanceof Long) this.setLong(name, value.getAsLong());
-			else if (num instanceof BigInteger) this.setLong(name, value.getAsBigInteger().longValueExact());
-			else if (num instanceof Float) this.setFloat(name, value.getAsFloat());
-			else if (num instanceof Double) this.setDouble(name, value.getAsDouble());
-			else if (num instanceof BigDecimal) this.setDouble(name, value.getAsBigDecimal().doubleValue());
-			else if (num instanceof LazilyParsedNumber)
-			{
-				LazilyParsedNumber l = (LazilyParsedNumber) num;
-				if (l.toString().contains(".") || l.toString().contains("E") || l.toString().contains("e")) this.setDouble(name, l.doubleValue());
-				else this.setLong(name, l.longValue());
-			}
-			else System.err.println("Invalid number type: " + num.getClass());
-			//TODO else exception
-		}
-		else System.err.println("Invalid primitive type: " + value);
-		//TODO else exception
-	}
-	
-	public static class NumberedElement implements Comparable<NumberedElement>
-	{
-		public final Element el;
-		public final int num;
-		
-		public NumberedElement(Element el, int num)
-		{
-			this.el = el;
-			this.num = num;
-		}
-		
-		@Override
-		public int compareTo(NumberedElement arg0)
-		{
-			return num - arg0.num;
-		}
-	}
-	
-	public static class NumberedAttribute implements Comparable<NumberedAttribute>
-	{
-		public final IAttribute attr;
-		public final int num;
-		
-		public NumberedAttribute(IAttribute attr, int num)
-		{
-			this.attr = attr;
-			this.num = num;
-		}
-		
-		@Override
-		public int compareTo(NumberedAttribute arg0)
-		{
-			return num - arg0.num;
-		}
-	}
-	
-	public JsonElement makeElement(boolean needsName)
-	{
-		String value = this.getValue();
-		Map<String, IAttribute> attributes = this.getAttributes();
-		@SuppressWarnings("unchecked")
-		List<Element> children = (List<Element>) this.getChildren();
-		if (attributes.isEmpty())
-		{
-			if (children.isEmpty())
-			{
-				if (value == null) return new JsonObject();
-				else return new JsonPrimitive(value);
-			}
-			else
-			{
-				if (value == null)
-				{
-					boolean flag = false;
-					TreeSet<NumberedElement> s = new TreeSet<>();
-					for (Element child : children)
-					{
-						try
-						{
-							NumberedElement el;
-							Integer i = Integer.parseInt(child.getName());
-							if (i < 0 || s.contains(el = new NumberedElement(child, i)))
-							{
-								flag = true;
-								break;
-							}
-							else s.add(el);
-						}
-						catch (NumberFormatException e)
-						{
-							flag = true;
-							break;
-						}
-					}
-					if (!flag)
-					{
-						JsonArray array = new JsonArray();
-						int targetNum = 0;
-						for (NumberedElement el : s)
-						{
-							if (el.num == targetNum)
-							{
-								array.add(el.el.makeElement(false));
-								targetNum++;
-							}
-							else
-							{
-								flag = true;
-								break;
-							}
-						}
-						if (!flag) return array;
-					}
-				}
-			}
-		}
-		else
-		{
-			if (children.isEmpty())
-			{
-				if (value == null)
-				{
-					boolean flag = false;
-					TreeSet<NumberedAttribute> s = new TreeSet<>();
-					for (Entry<String, IAttribute> entry : attributes.entrySet())
-					{
-						try
-						{
-							NumberedAttribute el;
-							Integer i = Integer.parseInt(entry.getKey());
-							if (i < 0 || s.contains(el = new NumberedAttribute(entry.getValue(), i)))
-							{
-								flag = true;
-								break;
-							}
-							else s.add(el);
-						}
-						catch (NumberFormatException e)
-						{
-							flag = true;
-							break;
-						}
-					}
-					if (!flag)
-					{
-						JsonArray array = new JsonArray();
-						int targetNum = 0;
-						for (NumberedAttribute attr : s)
-						{
-							if (attr.num == targetNum)
-							{
-								array.add(attr.attr.makeElement());
-								targetNum++;
-							}
-							else
-							{
-								flag = true;
-								break;
-							}
-						}
-						if (!flag) return array;
-					}
-				}
-			}
-		}
-		List<String> childNames = new ArrayList<>();
-		JsonObject obj = new JsonObject();
-		if (needsName) obj.addProperty("\"#name\"", getName());
-		if (value != null) obj.addProperty("\"#value\"", value);
-		attributes.forEach((name, attr) -> {
-			childNames.add(name);
-			obj.add('"' + name + '"', attr.makeElement());
-		});
-		int i = 0;
-		for (Element child : children)
-		{
-			String name = child.getName();
-			if (childNames.contains(name))
-			{
-				String oldName = name;
-				while (childNames.contains(name = (0 == i++) ? (oldName + " (duplicate)") : (oldName + " (duplicate " + i + ")"))) {};
-				childNames.add(name);
-				obj.add('"' + name + '"', child.makeElement(true));
-			}
-			else
-			{
-				childNames.add(name);
-				obj.add('"' + name + '"', child.makeElement(false));
-			}
-		}
-		return obj;
-	}
 }