NoClassDefFoundError：org.apache.commons.lang.StringUtils

Question

Caused by: java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
    at org.apache.maven.wagon.providers.file.FileWagon.resolveDestinationPath(FileWagon.java:206)
    at org.apache.maven.wagon.providers.file.FileWagon.putDirectory(FileWagon.java:157)
    at org.apache.maven.plugins.site.deploy.AbstractDeployMojo.push(AbstractDeployMojo.java:441)
    at org.apache.maven.plugins.site.deploy.AbstractDeployMojo.deploy(AbstractDeployMojo.java:323)
    at org.apache.maven.plugins.site.deploy.AbstractDeployMojo.deployTo(AbstractDeployMojo.java:284)
    at org.apache.maven.plugins.site.deploy.AbstractDeployMojo.execute(AbstractDeployMojo.java:166)
    at org.apache.maven.plugins.site.deploy.SiteStageMojo.execute(SiteStageMojo.java:78)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
    ... 20 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.StringUtils
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:259)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:235)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:227)
    ... 28 more

当我尝试运行

时会发生这种情况

mvn site site:stage              

pom.xml 是：

<dependencyManagement>
    <dependencies>
        <!-- Appengine Dependencies -->
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-1.0-sdk</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-testing</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-stubs</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-labs</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <!-- Libraries -->
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>18.0</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>com.googlecode.lambdaj</groupId>
            <artifactId>lambdaj</artifactId>
            <version>2.3.3</version>
        </dependency>
    </dependencies>
</dependencyManagement>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-site-plugin</artifactId>
            <version>3.4</version>
            <configuration>
                <port>9000</port>
                <tempWebappDirectory>${basedir}/target/site/tempdir</tempWebappDirectory>
            </configuration>
            <executions>
                <execution>
                    <id>attach-descriptor</id>
                    <goals>
                        <goal>attach-descriptor</goal>
                    </goals>
                </execution>
            </executions>       
        </plugin>
    </plugins>
    <pluginManagement>
        <plugins>
            <!--This plugin's configuration is used to store Eclipse m2e settings 
                only. It has no influence on the Maven build itself. -->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>
                                        org.codehaus.mojo
                                    </groupId>
                                    <artifactId>
                                        versions-maven-plugin
                                    </artifactId>
                                    <versionRange>
                                        [2.1,)
                                    </versionRange>
                                    <goals>
                                        <goal>
                                            display-dependency-updates
                                        </goal>
                                        <goal>
                                            display-plugin-updates
                                        </goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore></ignore>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
            <!-- standard plugins -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>versions-maven-plugin</artifactId>
                <version>2.1</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <version>3.2</version>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.5</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.5.2</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-project-info-reports-plugin</artifactId>
                <version>2.7</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <version>2.5</version>
            </plugin>
            <!-- appengine -->
            <plugin>
                <groupId>com.google.appengine</groupId>
                <artifactId>appengine-maven-plugin</artifactId>
                <version>${appengine.target.version}</version>
                <configuration>
                    <enableJarClasses>false</enableJarClasses>
                    <!-- Comment in the below snippet to bind to all IPs instead of just 
                        localhost -->
                    <!-- address>0.0.0.0</address> <port>8080</port -->
                    <!-- Comment in the below snippet to enable local debugging with a remove 
                        debugger like those included with Eclipse or IntelliJ -->
                    <!-- jvmFlags> <jvmFlag>-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n</jvmFlag> 
                        </jvmFlags -->
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-report-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-failsafe-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.9</version>
            </plugin>
        </plugins>
    </pluginManagement>
</build>
<reporting>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-project-info-reports-plugin</artifactId>
            <version>2.7</version>
            <reportSets>
                <reportSet>
                    <reports>
                        <report>index</report>
                        <report>dependencies</report>
                        <report>dependency-convergence</report>
                        <report>dependency-management</report>
                        <report>distribution-management</report>
                        <report>modules</report>
                        <report>plugin-management</report>
                        <report>plugins</report>
                        <report>summary</report>
                        <report>issue-tracking</report>
                        <report>scm</report>
                    </reports>
                </reportSet>
            </reportSets>
        </plugin>
    </plugins>
</reporting>

在存储库中，我在commons-lang/commons-lang/文件夹中看到了这一点 其中有四个2.1,2.4,2.5,2.6但2.1和2.4在文件夹中没有jar只是其他文件。有2.5和2.6个文件夹的罐子 在org/apache/commons/commons-lang3文件夹中，我看到一个带有jar的3.1

我把它打破到绝对基本的观察点，以便有相似经验的人可以帮助我。

Answer 1

由于OP没有指定细节，我想这可能是关于在Ubuntu 14上运行maven。

Ubuntu上的Maven包装似乎有一些“问题”。 在Ubuntu 14.04.1 LTS中apt-get install maven之后尝试用mvn package打包我的项目时，我得到了同样的例外。

解决方法from comment on github是：

sudo ln -s ../../java/commons-lang.jar /usr/share/maven/lib

至少在我的情况下修复了maven。

Answer 2

检查你的commons-lang版本，我的版本是2.6 用过sudo find / | grep commons-lang

在插件之前添加依赖项并确保id以I not i开头：

<dependency> 
    <groupId>commons-lang</groupId> 
    <artifactId>commons-lang</artifactId> 
    <version>2.6</version>
</dependency> 

根据维基不构建没有 控制器/ opendaylight /分布/ opendaylight /目标 为了./run.sh 所以我现在正在寻找那个??

Answer 3

您不会将commons-lang声明为依赖项。添加

<dependencies>
<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.3</version>
</dependency>
</dependencies>

到pom.xml

您的pom.xml应如下所示：

<dependencies>
<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.3</version>
</dependency>
</dependencies>

<dependencyManagement>
    <dependencies>
        <!-- Appengine Dependencies -->
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-1.0-sdk</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-testing</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-stubs</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.appengine</groupId>
            <artifactId>appengine-api-labs</artifactId>
            <version>${appengine.target.version}</version>
        </dependency>
        <!-- Libraries -->
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>18.0</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>com.googlecode.lambdaj</groupId>
            <artifactId>lambdaj</artifactId>
            <version>2.3.3</version>
        </dependency>
    </dependencies>
</dependencyManagement>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-site-plugin</artifactId>
            <version>3.4</version>
            <configuration>
                <port>9000</port>
                <tempWebappDirectory>${basedir}/target/site/tempdir</tempWebappDirectory>
            </configuration>
            <executions>
                <execution>
                    <id>attach-descriptor</id>
                    <goals>
                        <goal>attach-descriptor</goal>
                    </goals>
                </execution>
            </executions>       
        </plugin>
    </plugins>
    <pluginManagement>
        <plugins>
            <!--This plugin's configuration is used to store Eclipse m2e settings 
                only. It has no influence on the Maven build itself. -->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>
                                        org.codehaus.mojo
                                    </groupId>
                                    <artifactId>
                                        versions-maven-plugin
                                    </artifactId>
                                    <versionRange>
                                        [2.1,)
                                    </versionRange>
                                    <goals>
                                        <goal>
                                            display-dependency-updates
                                        </goal>
                                        <goal>
                                            display-plugin-updates
                                        </goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore></ignore>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
            <!-- standard plugins -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>versions-maven-plugin</artifactId>
                <version>2.1</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <version>3.2</version>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.5</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.5.2</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-project-info-reports-plugin</artifactId>
                <version>2.7</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <version>2.5</version>
            </plugin>
            <!-- appengine -->
            <plugin>
                <groupId>com.google.appengine</groupId>
                <artifactId>appengine-maven-plugin</artifactId>
                <version>${appengine.target.version}</version>
                <configuration>
                    <enableJarClasses>false</enableJarClasses>
                    <!-- Comment in the below snippet to bind to all IPs instead of just 
                        localhost -->
                    <!-- address>0.0.0.0</address> <port>8080</port -->
                    <!-- Comment in the below snippet to enable local debugging with a remove 
                        debugger like those included with Eclipse or IntelliJ -->
                    <!-- jvmFlags> <jvmFlag>-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n</jvmFlag> 
                        </jvmFlags -->
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-report-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-failsafe-plugin</artifactId>
                <version>2.17</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.9</version>
            </plugin>
        </plugins>
    </pluginManagement>
</build>
<reporting>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-project-info-reports-plugin</artifactId>
            <version>2.7</version>
            <reportSets>
                <reportSet>
                    <reports>
                        <report>index</report>
                        <report>dependencies</report>
                        <report>dependency-convergence</report>
                        <report>dependency-management</report>
                        <report>distribution-management</report>
                        <report>modules</report>
                        <report>plugin-management</report>
                        <report>plugins</report>
                        <report>summary</report>
                        <report>issue-tracking</report>
                        <report>scm</report>
                    </reports>
                </reportSet>
            </reportSets>
        </plugin>
    </plugins>
</reporting>

Answer 4

对我来说，似乎问题是访问本地maven存储库中的工件，所以我只是从本地maven repo中删除了整个org / apache文件夹，它修复了问题。

Answer 5

尝试将此依赖项添加到您的pom.xml

<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.6</version>
</dependency>

Answer 6

org.apache.maven.lifecycle.LifecycleExecutionException：无法在项目a1上执行目标org.apache.maven.plugins：maven-site-plugin：3.6：stage（default-cli）：目标org的执行default-cli .apache.maven.plugins：maven-site-plugin：3.6：阶段失败：执行org.apache.maven.plugins时缺少必需的类：maven-site-plugin：3.6：stage：org / apache / commons / lang / StringUtils的

国外进口数量：1 import：Entry [从领域导入ClassRealm [maven.api，parent：null]]

at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125)
... 20 more

引起：java.lang.NoClassDefFoundError：org / apache / commons / lang / StringUtils     在org.apache.maven.wagon.providers.file.FileWagon.resolveDestinationPath（FileWagon.java:206）     在org.apache.maven.wagon.providers.file.FileWagon.putDirectory（FileWagon.java:157）     在org.apache.maven.plugins.site.deploy.AbstractDeployMojo.push（AbstractDeployMojo.java:452）     在org.apache.maven.plugins.site.deploy.AbstractDeployMojo.deploy（AbstractDeployMojo.java:332）     在org.apache.maven.plugins.site.deploy.AbstractDeployMojo.deployTo（AbstractDeployMojo.java:293）     在org.apache.maven.plugins.site.deploy.AbstractDeployMojo.execute（AbstractDeployMojo.java:172）     在org.apache.maven.plugins.site.deploy.SiteStageMojo.execute（SiteStageMojo.java:71）     在org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo（DefaultBuildPluginManager.java:101）     ......还有20个 引起：java.lang.ClassNotFoundException：org.apache.commons.lang.StringUtils     在org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass（SelfFirstStrategy.java:50）     在org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass（ClassRealm.java:259）     在org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass（ClassRealm.java:235）     在org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass（ClassRealm.java:227）

在Ubuntu上运行Maven时，

org.apache.commons.lang.StringUtils丢失了

某些Maven目标如site:stage在Ubuntu 14.04下失败

A required class was missing while executing
    org.apache.maven.plugins:maven-site-plugin:3.4:stage: org/apache/commons/lang/StringUtils 

如果您使用错过了commons-lang依赖项的Ubuntu Maven包，就会发生这种情况。您可以解压缩独立的Maven存档或使用以下命令：     cd / usr / share / maven / lib     sudo ln -s ../../java/commons-lang.jar。 https://wiki.apache.org/commons/VfsProblems

Answer 7

您应该在pom.xml中使用commons-lang3.jar依赖版本。如果您正在用Java简单项目编写代码，则无论使用什么版本，都应添加另一个jar。 或者您可以检查jar复制不应该存在。