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v1.4.2 - Call PluginClassLoader through reflection

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Frank van der Heijden 2020-06-25 18:42:33 +02:00
parent ac6de28b68
commit 74f5f4c4f1
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GPG key ID: 26DA56488D314D11
3 changed files with 22 additions and 25 deletions
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20
src/main/java/net/frankheijden/serverutils/managers/PluginManager.java
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@ -5,17 +5,13 @@ import net.frankheijden.serverutils.reflection.*;
import org.bukkit.Bukkit;
import org.bukkit.command.*;
import org.bukkit.plugin.*;
import org.bukkit.plugin.java.PluginClassLoader;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static net.frankheijden.serverutils.reflection.ReflectionUtils.set;
public class PluginManager {
public static LoadResult loadPlugin(String jarFile) {
@ -78,7 +74,7 @@ public class PluginManager {
try {
RSimplePluginManager.getPlugins(Bukkit.getPluginManager()).remove(plugin);
RSimplePluginManager.removeLookupName(Bukkit.getPluginManager(), plugin.getName());
clearClassLoader(RJavaPlugin.getClassLoader(plugin));
RPluginClassLoader.clearClassLoader(RJavaPlugin.getClassLoader(plugin));
} catch (Exception ex) {
ex.printStackTrace();
return Result.ERROR;
@ -86,20 +82,6 @@ public class PluginManager {
return Result.SUCCESS;
}
public static void clearClassLoader(ClassLoader loader) throws IllegalAccessException, IOException {
if (loader == null) return;
if (loader instanceof PluginClassLoader) {
clearClassLoader((PluginClassLoader) loader);
}
}
public static void clearClassLoader(PluginClassLoader loader) throws IllegalAccessException, IOException {
if (loader == null) return;
set(RPluginClassLoader.getFields(), loader, "plugin", null);
set(RPluginClassLoader.getFields(), loader, "pluginInit", null);
loader.close();
}
public static Result enablePlugin(String pluginName) {
return enablePlugin(Bukkit.getPluginManager().getPlugin(pluginName));
}

25
src/main/java/net/frankheijden/serverutils/reflection/RPluginClassLoader.java
View file

@ -1,13 +1,14 @@
package net.frankheijden.serverutils.reflection;
import org.bukkit.plugin.java.PluginClassLoader;
import java.io.IOException;
import java.lang.reflect.*;
import java.net.URLClassLoader;
import java.util.Map;
import static net.frankheijden.serverutils.reflection.ReflectionUtils.FieldParam.fieldOf;
import static net.frankheijden.serverutils.reflection.ReflectionUtils.VersionParam.ALL_VERSIONS;
import static net.frankheijden.serverutils.reflection.ReflectionUtils.getAllFields;
import static net.frankheijden.serverutils.reflection.ReflectionUtils.set;
public class RPluginClassLoader {
@ -16,7 +17,7 @@ public class RPluginClassLoader {
static {
try {
pluginClassLoaderClass = PluginClassLoader.class;
pluginClassLoaderClass = Class.forName("org.bukkit.plugin.java.PluginClassLoader");
fields = getAllFields(pluginClassLoaderClass,
fieldOf("plugin", ALL_VERSIONS),
fieldOf("pluginInit", ALL_VERSIONS));
@ -25,7 +26,21 @@ public class RPluginClassLoader {
}
}
public static Map<String, Field> getFields() {
return fields;
public static boolean isInstance(Object obj) {
return pluginClassLoaderClass.isInstance(obj);
}
public static void clearClassLoader(ClassLoader loader) throws IOException, IllegalAccessException {
if (loader == null) return;
if (isInstance(loader)) {
clearURLClassLoader((URLClassLoader) loader);
}
}
public static void clearURLClassLoader(URLClassLoader loader) throws IllegalAccessException, IOException {
if (loader == null) return;
set(fields, loader, "plugin", null);
set(fields, loader, "pluginInit", null);
loader.close();
}
}