IMessageHolder抛出NoClassDefFoundError

5 月，1 周 Questions & Answers 3309

我最近在Windows 7上从eclipse Juno升级到Luna，我的aspectj编译有问题。我得到了这个错误：

[ERROR] Failed to execute goal org.codehaus.mojo:aspectj-maven-plugin:1.7:compile (default) on project RSADirectoryUtilities: Execution default of goal org.codehaus.mojo:aspectj-maven-plugin:1.7:compile failed: A required class was missing while executing org.codehaus.mojo:aspectj-maven-plugin:1.7:compile: org/aspectj/bridge/IMessageHolder
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.codehaus.mojo:aspectj-maven-plugin:1.7
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/DJC/.m2/repository/org/codehaus/mojo/aspectj-maven-plugin/1.7/aspectj-maven-plugin-1.7.jar
[ERROR] urls[1] = file:/C:/Users/DJC/.m2/repository/org/codehaus/plexus/plexus-utils/3.0.10/plexus-utils-3.0.10.jar
[ERROR] urls[2] = file:/C:/Users/DJC/.m2/repository/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar
[ERROR] urls[3] = file:/C:/Users/DJC/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.11/plexus-interpolation-1.11.jar
[ERROR] urls[4] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.2.1/maven-reporting-api-2.2.1.jar
[ERROR] urls[5] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.1/doxia-sink-api-1.1.jar
[ERROR] urls[6] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar
[ERROR] urls[7] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-site-renderer/1.1.2/doxia-site-renderer-1.1.2.jar
[ERROR] urls[8] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-core/1.1.2/doxia-core-1.1.2.jar
[ERROR] urls[9] = file:/C:/Users/DJC/.m2/repository/xerces/xercesImpl/2.8.1/xercesImpl-2.8.1.jar
[ERROR] urls[10] = file:/C:/Users/DJC/.m2/repository/commons-lang/commons-lang/2.4/commons-lang-2.4.jar
[ERROR] urls[11] = file:/C:/Users/DJC/.m2/repository/commons-httpclient/commons-httpclient/3.1/commons-httpclient-3.1.jar
[ERROR] urls[12] = file:/C:/Users/DJC/.m2/repository/commons-codec/commons-codec/1.2/commons-codec-1.2.jar
[ERROR] urls[13] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-decoration-model/1.1.2/doxia-decoration-model-1.1.2.jar
[ERROR] urls[14] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-module-xhtml/1.1.2/doxia-module-xhtml-1.1.2.jar
[ERROR] urls[15] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/doxia/doxia-module-fml/1.1.2/doxia-module-fml-1.1.2.jar
[ERROR] urls[16] = file:/C:/Users/DJC/.m2/repository/org/codehaus/plexus/plexus-i18n/1.0-beta-7/plexus-i18n-1.0-beta-7.jar
[ERROR] urls[17] = file:/C:/Users/DJC/.m2/repository/org/codehaus/plexus/plexus-velocity/1.1.7/plexus-velocity-1.1.7.jar
[ERROR] urls[18] = file:/C:/Users/DJC/.m2/repository/org/apache/velocity/velocity/1.5/velocity-1.5.jar
[ERROR] urls[19] = file:/C:/Users/DJC/.m2/repository/oro/oro/2.0.8/oro-2.0.8.jar
[ERROR] urls[20] = file:/C:/Users/DJC/.m2/repository/commons-collections/commons-collections/3.2/commons-collections-3.2.jar
[ERROR] urls[21] = file:/C:/Users/DJC/.m2/repository/org/apache/maven/reporting/maven-reporting-impl/2.1/maven-reporting-impl-2.1.jar
[ERROR] urls[22] = file:/C:/Users/DJC/.m2/repository/commons-validator/commons-validator/1.2.0/commons-validator-1.2.0.jar
[ERROR] urls[23] = file:/C:/Users/DJC/.m2/repository/commons-beanutils/commons-beanutils/1.7.0/commons-beanutils-1.7.0.jar
[ERROR] urls[24] = file:/C:/Users/DJC/.m2/repository/commons-digester/commons-digester/1.6/commons-digester-1.6.jar
[ERROR] urls[25] = file:/C:/Users/DJC/.m2/repository/commons-logging/commons-logging/1.0.4/commons-logging-1.0.4.jar
[ERROR] urls[26] = file:/C:/Users/DJC/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar
[ERROR] urls[27] = file:/C:/Users/DJC/.m2/repository/org/aspectj/aspectjtools/1.8.2/aspectjtools-1.8.2.jar
[ERROR] urls[28] = file:/C:/Program%20Files/Java/jdk1.8.0_31/jre/../lib/tools.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.aspectj.bridge.IMessageHolder

我的pom看起来像这样：

 <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.7.3</version>
  </dependency>
  <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjrt</artifactId>
    <version>1.7.3</version>
  </dependency>

    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>aspectj-maven-plugin</artifactId>
        <version>1.7</version>
        <executions>
            <execution>
                <phase>process-sources</phase>
                <goals>
                    <!-- use this goal to weave all your main classes -->
                    <goal>compile</goal>
                </goals>
            </execution>
        </executions>
        <configuration>                 
            <complianceLevel>1.8</complianceLevel>
            <target>1.8</target>
            <source>1.6</source>
            <verbose>true</verbose>
        </configuration>
    </plugin>

有几件有趣的事需要注意。当我在eclipse之外（在linux机器上）运行mvn包时，这种方法很好用。我有两个同事，他们都能在eclipse中编写软件包（他们最近也都升级了）。唯一的区别是，他们在Juno中进行了升级，我只是进行了一次新的“安装”，并指向Luna和我的工作区（它升级了）。我一个接一个地检查插件，试图找出它们的安装和我的安装之间的差异，但这并没有解决这个问题。我的点子快用完了

这个solution对我来说似乎过时了，不起作用

运行mvn依赖关系：树产量

[INFO] Building xxxDirectoryUtilities 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.3:tree (default-cli) @ xxxDirectoryUtilities ---
[INFO] xxxDirectoryUtilities:jar:0.0.1-SNAPSHOT
[INFO] +- junit:junit:jar:4.4:test
[INFO] +- commons-logging:commons-logging:jar:1.1.3:compile
[INFO] +- org.springframework:spring-context:jar:2.5.6:compile
[INFO] |  +- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  \- org.springframework:spring-core:jar:2.5.6:compile
[INFO] +- org.springframework:spring-tx:jar:2.5.6:compile
[INFO] +- org.springframework:spring-beans:jar:2.5.6:compile
[INFO] +- org.springframework.ldap:spring-ldap-core:jar:1.3.0.RELEASE:compile
[INFO] |  \- commons-lang:commons-lang:jar:2.1:compile
[INFO] +- org.aspectj:aspectjweaver:jar:1.7.3:compile
[INFO] +- org.aspectj:aspectjrt:jar:1.7.3:compile
[INFO] +- xxxLoggingUtilities:jar:0.0.1-SNAPSHOT:compile
[INFO] |  \- log4j:log4j:jar:1.2.17:compile
[INFO] +- xxxCryptographyUtils:jar:0.0.1-SNAPSHOT:compile
[INFO] |  \- org.jasypt:jasypt-spring2:jar:1.9.1:compile
[INFO] |     \- org.jasypt:jasypt:jar:1.9.1:compile
[INFO] \- xxx:UnifiedSpringResourceFiles:jar:0.0.1-SNAPSHOT:compile
[INFO]    \- org.springframework:spring:jar:2.5.6:compile

# 1 楼答案

Maven配置有几个潜在问题：

使用AspectJ Maven插件1.7，它使用编译器版本1.8.2
但是您依赖于AspectJ运行时1.7.3。（顺便说一句，1.7.4是最新的1.7.x AspectJ版本。）
字节码目标版本是1.8，但AspectJ运行时版本是1.7。x不支持Java 8

我通常做的是：

确保编译器和运行时版本同步。我甚至在AspectJ Maven插件中覆盖AspectJ工具版本，只是为了100%确定我有最新的编译器修复程序
通常我也使用相同的源、目标和合规级别的版本。它不疼

您可以根据需要调整此样本：

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.source-target.version>1.7</java.source-target.version>
    <aspectj.version>1.8.5</aspectj.version>
    <main-class>de.scrum_master.galileo.OpenbookCleaner</main-class>
</properties>

<!  (...)  >

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.2</version>
    <configuration>
        <source>${java.source-target.version}</source>
        <target>${java.source-target.version}</target>
        <!  IMPORTANT  >
        <useIncrementalCompilation>false</useIncrementalCompilation>
    </configuration>
</plugin>

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>aspectj-maven-plugin</artifactId>
    <version>1.7</version>
    <configuration>
        <! <showWeaveInfo>true</showWeaveInfo> >
        <source>${java.source-target.version}</source>
        <target>${java.source-target.version}</target>
        <Xlint>ignore</Xlint>
        <complianceLevel>${java.source-target.version}</complianceLevel>
        <encoding>${project.build.sourceEncoding}</encoding>
        <! <verbose>true</verbose> >
        <! <warn>constructorName,packageDefaultMethod,deprecation,maskedCatchBlocks,unusedLocals,unusedArguments,unusedImport</warn> >
    </configuration>
    <executions>
        <execution>
            <!  IMPORTANT  >
            <phase>process-sources</phase>
            <goals>
                <goal>compile</goal>
                <goal>test-compile</goal>
            </goals>
        </execution>
    </executions>
    <dependencies>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjtools</artifactId>
            <version>${aspectj.version}</version>
        </dependency>
    </dependencies>
</plugin>

<!  (...)  >

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjrt</artifactId>
    <version>${aspectj.version}</version>
    <scope>runtime</scope>
</dependency>

<!  (...)  >

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使用maven/eclipse的java AspectJ编译会为org/AspectJ/bridge/IMessageHolder抛出NoClassDefFoundError

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# 1 楼答案