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不相容的魔法值0

[英]Incompatible magic value 0

 原文  2013-04-01 17:23:04  8   3    java/ maven

问题描述

I'm developing java maven project in STS (based on Eclipse Juno 3.8.2) and I'm getting following error: 我在STS中开发java maven项目（基于Eclipse Juno 3.8.2），我收到以下错误：

java.lang.ClassFormatError: Incompatible magic value 0 in class file org/eclipse/jdt/internal/junit4/runner/JUnit4TestReference java.lang.ClassFormatError：类文件中不兼容的魔术值0 org / eclipse / jdt / internal / junit4 / runner / JUnit4TestReference

I think it have something to do with mixed Java versions, but I'm not able to solve it, probably I missed something. 我认为它与混合Java版本有关，但我无法解决它，可能我错过了一些东西。

Full stacktrace is: 完整的堆栈跟踪是： 

java.lang.ClassFormatError: Incompatible magic value 0 in class file org/eclipse/jdt/internal/junit4/runner/JUnit4TestReference
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:48)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

relenavt part of pom.xml is: relenavt pom.xml一部分是： 

<plugin>
    <inherited>true</inherited>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.5.1</version>
    <configuration>
        <source>1.6</source>
        <target>1.6</target>
        <encoding>UTF-8</encoding>
        <showWarnings>true</showWarnings>
        <showDeprecation>true</showDeprecation>
    </configuration>
</plugin>

my java version is: 我的java版本是： 

> java -version
java version "1.7.0_17"
Java(TM) SE Runtime Environment (build 1.7.0_17-b02)
Java HotSpot(TM) Client VM (build 23.7-b01, mixed mode, sharing)

and in Eclipse (STS) configuration for project is 而在Eclipse（STS）项目配置中

Eclipse Java编译器设置

Maven dependencies: Maven依赖： 

<properties>
    <wicket.version>6.6.0</wicket.version>
    <jetty.version>7.6.3.v20120416</jetty.version>
    <spring.version>3.2.2.RELEASE</spring.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <!-- Wicket -->
    <dependency>
        <groupId>org.apache.wicket</groupId>
        <artifactId>wicket-core</artifactId>
        <version>${wicket.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.wicket</groupId>
        <artifactId>wicket-spring</artifactId>
        <version>1.4.17</version>
    </dependency>
    <dependency>
        <groupId>org.apache.wicket</groupId>
        <artifactId>wicket-extensions</artifactId>
        <version>${wicket.version}</version>
    </dependency>

    <!-- LOGGING DEPENDENCIES - LOG4J -->
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.6.4</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
    </dependency>

    <!-- Spring -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.3.0.RELEASE</version>
        <exclusions>
            <exclusion>
                <artifactId>spring-core</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-context</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-aop</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-tx</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-beans</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
            <exclusion>
                <artifactId>spring-orm</artifactId>
                <groupId>org.springframework</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.javaconfig</groupId>
        <artifactId>spring-javaconfig</artifactId>
        <version>1.0.0.m3</version>
    </dependency>
    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2.2</version>
    </dependency>

    <dependency>
        <groupId>org.hsqldb</groupId>
        <artifactId>hsqldb</artifactId>
        <version>2.2.9</version>
        <scope>system</scope>
        <systemPath>c:\JavaLibs\hsqldb-2.2.9\hsqldb.jar</systemPath>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.1.10.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.1.10.Final</version>
    </dependency>
    <dependency>
        <groupId>commons-dbcp</groupId>
        <artifactId>commons-dbcp</artifactId>
        <version>1.4</version>
    </dependency>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.10</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>3.2.2.RELEASE</version>
        <scope>test</scope>
    </dependency>

    <!-- JETTY DEPENDENCIES FOR TESTING -->
    <dependency>
        <groupId>org.eclipse.jetty.aggregate</groupId>
        <artifactId>jetty-all-server</artifactId>
        <version>${jetty.version}</version>
        <scope>provided</scope>
    </dependency>

</dependencies>

I found out, that there is a problem only when I'm trying to run JUnit tests, my project is running fine. 我发现，只有当我尝试运行JUnit测试时才会出现问题，我的项目运行正常。 I tried to check run configuration and it seems it's ok. 我试图检查运行配置，似乎没关系。 I checked project facets too, and everything seems to be ok there too... 我也检查了项目方面，一切似乎也没问题......

3 个解决方案

解决方案1
 1  2013-04-01 20:06:12

Despite having 1.7.0_17 on the command line I think your Eclipse is running on an older version of java. 尽管在命令行上有1.7.0_17，但我认为你的Eclipse运行在旧版本的java上。 To determine what version of java Eclipse is running on see: 要确定正在运行的Java Eclipse版本，请参阅：

Find out what JVM Eclipse is running on 了解JVM Eclipse的运行情况

Then to change the version of java Eclipse is running on see: 然后更改正在运行的Eclipse的java版本，请参阅：

http://wiki.eclipse.org/Eclipse.ini#Specifying_the_JVM http://wiki.eclipse.org/Eclipse.ini#Specifying_the_JVM

Hope that helps. 希望有所帮助。

解决方案2
 1  2013-04-01 20:31:30

It seems, that is some general problem with STS (based on Eclipse Juno 3.8.2). 看起来，这是STS的一些普遍问题（基于Eclipse Juno 3.8.2）。

I tried the simplest possible test and it's not working too: 我尝试了最简单的测试，它也不起作用：

pom.xml 的pom.xml 

<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>net.betlista</groupId>
    <artifactId>tests-sts</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.2.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.2.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.2.2.RELEASE</version>
        </dependency>
    </dependencies>

</project>

test class 考试班 

package net.betlista.tests.sts.junit;

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith( SpringJUnit4ClassRunner.class )
@ContextConfiguration( classes = { JavaConfig.class } )
public class CalculatorTest {

    @Autowired
    Calculator calculator;

    @Test
    public void addTest() {
        final int a = 10, b = 20;
        Assert.assertEquals( a + b, this.calculator.add( a, b ) );
    }

}

configuration class 配置类 

package net.betlista.tests.sts.junit;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class JavaConfig {

    @Bean
    public Calculator getCalculator() {
        return new Calculator();
    }

}

service class 服务类 

package net.betlista.tests.sts.junit;

import org.springframework.stereotype.Service;

@Service
public class Calculator {

    int add( final int a, final int b ) {
        return a + b;
    }

}

and I'm getting same error in STS (3.8.2), while in STS (4.2.2) everything works fine. 我在STS（3.8.2）中遇到同样的错误，而在STS（4.2.2）中一切正常。

解决方案3
 0  2018-06-12 00:21:59

same here solved by simply clean and rebuild the project again 同样在这里通过简单清理并再次重建项目来解决

in my case this error happened just when i change a super class of the mentioned class; 在我的情况下，这个错误发生在我改变上述类的超类时;

the class mentioned on my stacktrace is a class in my project not in specific library like yours 我的stacktrace中提到的类是我项目中的一个类，而不是像你这样的特定库

org/eclipse/jdt/internal/junit4/runner/JUnit4TestReference

hope that help you 希望对你有所帮助

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