Kryoライブラリには、maven shade-packageフェーズで "overlapping classes"警告があります

Question

影付きのjarファイルを作成しようとしていますが、shadeプラグインが警告を表示しています。 私はそれらを修正する方法がわかりません。ここで

は私のpom.xml

<?xml version="1.0" encoding="UTF-8"?> 
<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> 

    <groupId>example.shade.group</groupId> 
    <artifactId>myproj-shade-kryo</artifactId> 
    <name>myproj-shade-kryo</name> 
    <version>1.0.0-SNAPSHOT</version> 

    <dependencies> 
     <dependency> 
      <groupId>com.esotericsoftware.kryo</groupId> 
      <artifactId>kryo</artifactId> 
      <version>2.21</version> 
     </dependency> 
    </dependencies> 

    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-enforcer-plugin</artifactId> 
       <executions> 
        <execution> 
         <id>enforce</id> 
         <configuration> 
          <rules> 
           <DependencyConvergence/> 
          </rules> 
         </configuration> 
         <goals> 
          <goal>enforce</goal> 
         </goals> 
        </execution> 
       </executions> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-shade-plugin</artifactId> 
       <version>2.4.2</version> 
       <executions> 
        <execution> 
         <id>package</id> 
         <phase>package</phase> 
         <goals> 
          <goal>shade</goal> 
         </goals> 
        </execution> 
       </executions> 
      </plugin> 
     </plugins> 
    </build> 

</project> 

され、警告は次のとおりです。

[INFO] --- maven-shade-plugin:2.4.2:shade (package) @ myproj-shade-kryo --- 
[INFO] Including com.esotericsoftware.kryo:kryo:jar:2.21 in the shaded jar. 
[INFO] Including com.esotericsoftware.reflectasm:reflectasm:jar:shaded:1.07 in the shaded jar. 
[INFO] Including org.ow2.asm:asm:jar:4.0 in the shaded jar. 
[INFO] Including com.esotericsoftware.minlog:minlog:jar:1.2 in the shaded jar. 
[INFO] Including org.objenesis:objenesis:jar:1.2 in the shaded jar. 
[WARNING] minlog-1.2.jar, kryo-2.21.jar define 2 overlapping classes: 
[WARNING] - com.esotericsoftware.minlog.Log 
[WARNING] - com.esotericsoftware.minlog.Log$Logger 
[WARNING] reflectasm-1.07-shaded.jar, kryo-2.21.jar define 23 overlapping classes: 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.Opcodes 
[WARNING] - com.esotericsoftware.reflectasm.AccessClassLoader 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.Label 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassWriter 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.AnnotationVisitor 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.Type 
[WARNING] - com.esotericsoftware.reflectasm.FieldAccess 
[WARNING] - com.esotericsoftware.reflectasm.ConstructorAccess 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassVisitor 
[WARNING] - com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.Edge 
[WARNING] - 13 more... 
[WARNING] objenesis-1.2.jar, kryo-2.21.jar define 32 overlapping classes: 
[WARNING] - org.objenesis.ObjenesisBase 
[WARNING] - org.objenesis.instantiator.gcj.GCJInstantiator 
[WARNING] - org.objenesis.ObjenesisHelper 
[WARNING] - org.objenesis.instantiator.jrockit.JRockitLegacyInstantiator 
[WARNING] - org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator 
[WARNING] - org.objenesis.instantiator.ObjectInstantiator 
[WARNING] - org.objenesis.instantiator.gcj.GCJInstantiatorBase$DummyStream 
[WARNING] - org.objenesis.instantiator.basic.ObjectStreamClassInstantiator 
[WARNING] - org.objenesis.ObjenesisException 
[WARNING] - org.objenesis.Objenesis 
[WARNING] - 22 more... 
[WARNING] maven-shade-plugin has detected that some class files are 
[WARNING] present in two or more JARs. When this happens, only one 
[WARNING] single version of the class is copied to the uber jar. 
[WARNING] Usually this is not harmful and you can skip these warnings, 
[WARNING] otherwise try to manually exclude artifacts based on 
[WARNING] mvn dependency:tree -Ddetail=true and the above output. 
[WARNING] See http://maven.apache.org/plugins/maven-shade-plugin/ 

私もmvn dependency:tree -Ddetail=trueを試みたが、それは私に修正するためにどのように任意の手掛かりを与えるものではありません：

[INFO] ------------------------------------------------------------------------ 
[INFO] Building myproj-shade-kryo 1.0.0-SNAPSHOT 
[INFO] ------------------------------------------------------------------------ 
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ myproj-shade-kryo --- 
[INFO] example.shade.group:myproj-shade-kryo:jar:1.0.0-SNAPSHOT 
[INFO] \- com.esotericsoftware.kryo:kryo:jar:2.21:compile 
[INFO] +- com.esotericsoftware.reflectasm:reflectasm:jar:shaded:1.07:compile 
[INFO] | \- org.ow2.asm:asm:jar:4.0:compile 
[INFO] +- com.esotericsoftware.minlog:minlog:jar:1.2:compile 
[INFO] \- org.objenesis:objenesis:jar:1.2:compile 
[INFO] ------------------------------------------------------------------------ 

Answer 1

kryo-2.21で問題が発生しました。で修正されているようです。。

kryo-2.21パッケージには含まれています：舞台裏

• コム
• META-INF
• ORG/objenesis/*
• minlog-1.2.jar
• objenesis-1.2.jar
• reflectasm-1.07-shaded.jar

とobjenesis-1.2.jar自体は含まれています

• META-INF
を
• ORG/objenesis/*

ので、両方のルートkryoと内部objenesis-1.2.jarのアーカイブには、org/o bjenesis/*クラス！ reflectasmライブラリの同じ

：それは直接kryo/com/*へとjarこれはkryo-2.22に固定しているように見えるkryo/reflectasm-1.07-shaded.jar

などのクラスとして含まれ、その他の場合についてはguess this minimizeJar build property makes the effect

複数のライブラリからの重複除外する方法Maven build [WARNING] we have a duplicate class

また、（依存関係に重複しているクラスがないことが確かな場合） - プロジェクトをクリーンアップしようとしてください：

mvn clean package