在任何人试图告诉我这是一个重复之前,我已经试过了关于这个的解决方案,以及几乎所有其他我能找到的答案。
我的项目在IntelliJ中构建得很好,通过了我设置的所有测试,它甚至在IntelliJ内部运行得也很好,当我试图运行maven构建的JAR时,除了几个例外,我就被打了个耳光。
代码所指向的类:
package com.albion;
import com.albion.logging.Loggable;
import com.albion.packets.Packet;
import com.albion.packets.Packets;
import com.esotericsoftware.kryonet.Server;
import com.esotericsoftware.minlog.Log;
import javax.swing.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.UUID;
import java.util.logging.Level;
public class Main extends Loggable {
protected static Integer PORT = 47532;
protected static byte[] key = { /* contents omitted for obvious reasons */ };
protected static Server server;
protected static Controller controller;
public static void main(String[] args) throws IOException {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
Log.set(Log.LEVEL_DEBUG);
server = new Server();
server.bind(PORT);
try {
controller = new Controller();
controller.setVisible(true);
ClientManager.setController(controller);
} catch (Exception ex) {
getLog().log(Level.SEVERE, "Error creating a new Controller instance: ", ex.getCause());
}
handlers();
register();
server.start();
}
private static void handlers() {
getLog().info("Creating new PacketHandler");
PacketHandler handler = new PacketHandler(controller);
getLog().info("Creating new ClientListener");
ClientListener listener = new ClientListener(handler);
getLog().info("Adding listeners to server");
server.addListener(listener);
}
private static void register() {
getLog().info("Registering data types");
server.getKryo().register(UUID.class);
server.getKryo().register(byte[].class);
server.getKryo().register(Packet.class);
server.getKryo().register(String.class);
server.getKryo().register(HashMap.class);
server.getKryo().register(Packets.class);
server.getKryo().register(String[].class);
}
}
根据我看到的例外情况,当通过命令提示符运行时,问题出现在第31行,它将是:
server = new Server();
命令提示符中的堆栈跟踪如下所示:
Exception in thread "main" java.lang.IllegalArgumentException: Unable to create serializer "com.esotericsoftware.kryo.serializers.FieldSerializer" for class: com.esotericsoftware.kryonet.FrameworkMessage$RegisterTCP
at com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:48)
at com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:26)
at com.esotericsoftware.kryo.Kryo.newDefaultSerializer(Kryo.java:351)
at com.esotericsoftware.kryo.Kryo.getDefaultSerializer(Kryo.java:344)
at com.esotericsoftware.kryo.Kryo.register(Kryo.java:365)
at com.esotericsoftware.kryonet.KryoSerialization.<init>(KryoSerialization.java:31)
at com.esotericsoftware.kryonet.KryoSerialization.<init>(KryoSerialization.java:23)
at com.esotericsoftware.kryonet.Server.<init>(Server.java:91)
at com.esotericsoftware.kryonet.Server.<init>(Server.java:73)
at com.albion.Main.main(Main.java:31)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:35)
... 9 more
Caused by: java.lang.RuntimeException: Cannot create UnsafeFieldFactory
at com.esotericsoftware.kryo.serializers.FieldSerializer.getUnsafeFieldFactory(FieldSerializer.java:408)
at com.esotericsoftware.kryo.serializers.FieldSerializer.newMatchingCachedField(FieldSerializer.java:375)
at com.esotericsoftware.kryo.serializers.FieldSerializer.newCachedField(FieldSerializer.java:343)
at com.esotericsoftware.kryo.serializers.FieldSerializer.createCachedFields(FieldSerializer.java:307)
at com.esotericsoftware.kryo.serializers.FieldSerializer.rebuildCachedFields(FieldSerializer.java:239)
at com.esotericsoftware.kryo.serializers.FieldSerializer.rebuildCachedFields(FieldSerializer.java:156)
at com.esotericsoftware.kryo.serializers.FieldSerializer.<init>(FieldSerializer.java:133)
... 14 more
Caused by: java.lang.ClassNotFoundException: com.esotericsoftware.kryo.serializers.UnsafeCachedFieldFactory
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.esotericsoftware.kryo.serializers.FieldSerializer.getUnsafeFieldFactory(FieldSerializer.java:405)
... 20 more
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.albion</groupId>
<artifactId>Server</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>Server</artifactId>
<dependencies>
<dependency>
<groupId>com.albion</groupId>
<artifactId>ServerCommons</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.3</version>
<configuration>
<minimizeJar>true</minimizeJar>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
<index>true</index>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestEntries>
<Main-Class>com.albion.Main</Main-Class>
</manifestEntries>
</archive>
</configuration>
</plugin>
</plugins>
</build>
这似乎是Maven的shade插件中的minimizeJar造成的。在最后一次尝试中删除了这个选项,然后一切都像发条一样正常运转。
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