我一直在maven-dependency-plugin中看到标签的NoSuchElementException。我已经尝试将aether-spi,aether-api和aether-util的依赖项添加到我的pom.xml中,但错误并没有消失。如果我反复更新并清理项目或运行mvn包,我有时可以让它消失。我可以添加依赖项或对插件进行更新以防止此错误吗?我的pom.xml有问题吗?
我正在使用eclipse Mars 4.5.2和Maven 3.2.3。
这是错误:
java.util.NoSuchElementException
role: org.eclipse.aether.RepositorySystem
roleHint: (org.apache.maven.plugins:maven-dependency-plugin:2.10:copy-dependencies:copy-dependencies:package)
org.codehaus.plexus.component.repository.exception.ComponentLookupException: java.util.NoSuchElementException
role: org.eclipse.aether.RepositorySystem
roleHint:
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:267)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:255)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:249)
at com.coderplus.utils.BuildHelper.<init>(BuildHelper.java:159)
at com.ianbrandt.tools.m2e.mdp.core.MdpBuildParticipant.build(MdpBuildParticipant.java:65)
at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:137)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:205)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:245)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:300)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:303)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:359)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:382)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.util.NoSuchElementException
at org.eclipse.sisu.plexus.RealmFilteredBeans$FilteredItr.next(RealmFilteredBeans.java:118)
at org.eclipse.sisu.plexus.RealmFilteredBeans$FilteredItr.next(RealmFilteredBeans.java:1)
at org.eclipse.sisu.plexus.DefaultPlexusBeans$Itr.next(DefaultPlexusBeans.java:76)
at org.eclipse.sisu.plexus.DefaultPlexusBeans$Itr.next(DefaultPlexusBeans.java:1)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:263)
... 28 more
这是我的pom.xml插件:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
编辑:这是完整的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/maven-v4_0_0.xsd">
<parent>
<groupId>com.my.company</groupId>
<artifactId>MyApp</artifactId>
<version>1.0.0</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.my.company.service</groupId>
<artifactId>MyService</artifactId>
<packaging>jar</packaging>
<name>MyService</name>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
<version>2.6</version>
</plugin>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.19.1</version>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<!-- Jetty Setup -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.5.0</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>com.my.company.MyApp</mainClass>
<classpathScope>runtime</classpathScope>
<webAppConfig>
<contextPath>/</contextPath>
</webAppConfig>
<webAppSourceDirectory>target/${project.artifactId}-${project.version}</webAppSourceDirectory>
<webDefaultXml>${project.basedir}/conf/jetty/webdefault.xml</webDefaultXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- logging dependencies -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback-version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback-version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<!-- Testing dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.easymock</groupId>
<artifactId>easymock</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.10</version>
</dependency>
<!-- Jersey Dependencies -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>${jersey2-version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>${jersey2-version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${jersey2-version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<version>${jersey2-version}</version>
</dependency>
<!-- Jetty Dependencies -->
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-annotations</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-plus</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>javax.ejb-api</artifactId>
<version>3.2</version>
</dependency>
<!-- JSON processing: jackson -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson-version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson-version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson-version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-joda</artifactId>
<version>2.1.5</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.2</version>
</dependency>
<!-- Base64 encoding that works in both JVM and Android -->
<dependency>
<groupId>com.brsanthu</groupId>
<artifactId>migbase64</artifactId>
<version>2.2</version>
</dependency>
<!-- Spring Dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<!-- Aether dependencies to fix error on maven-dependency-plugin execution -->
<dependency>
<groupId>org.eclipse.aether</groupId>
<artifactId>aether-spi</artifactId>
<version>0.9.0.M2</version>
</dependency>
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-api</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-util</artifactId>
<version>1.8</version>
</dependency>
</dependencies>
<properties>
<jersey-version>1.19.1</jersey-version>
<jersey2-version>2.22.1</jersey2-version>
<jackson-version>2.4.2</jackson-version>
<junit-version>4.12</junit-version>
<maven-plugin-version>1.0.0</maven-plugin-version>
<commons-lang-version>3.4</commons-lang-version>
<slf4j-version>1.7.21</slf4j-version>
<jetty-version>9.3.6.v20151106</jetty-version>
<coverage.complexity.minimum>0</coverage.complexity.minimum>
<coverage.line.minimum>0</coverage.line.minimum>
<coverage.missed.classes>0</coverage.missed.classes>
</properties>
</project>
答案 0 :(得分:0)
在使用 Maven3 时,需要添加 maven-resolver-api 版本 1.4.1 作为依赖项。
<dependency>
<groupId>org.apache.maven.resolver</groupId>
<artifactId>maven-resolver-api</artifactId>
<version>1.4.1</version>
</dependency>
如果有人偶然发现此问题并正在使用 Maven2 ,请添加相同的依赖项,但请使用版本 1.3.1
答案 1 :(得分:-2)
首先你定义了包装jar
,但是你已经在你的pom文件中定义了maven-war-plugin?如果您想生成war文件,请将包装更改为war
。此外,我不知道为什么你使用maven-dependency-plugin将文件复制到lib文件夹?这看起来不错。此外,对Aether的依赖是完全错误的,因为它被Maven和插件使用,但通常不是由用户使用...