org.codehaus.classworlds.NoSuchRealmException：plexus.core
我正在尝试使用 Tomcat 7 的 Apache Maven Tomcat 插件， 所以我将以下依赖项添加到 POM 文件：
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-classworlds</artifactId>
<version>2.4</version>
</dependency>
插件配置：
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.0-SNAPSHOT</version>
<configuration>
<path>/${project.build.finalName}</path>
</configuration>
</plugin>
存储库：
<repositories>
<repository>
<id>people.apache.snapshots</id>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>apache.snapshots</id>
<name>Apache Snapshots</name>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
Maven OPTS：
-Xmx512m -Xms256m -XX:MaxPermSize=512m
但是当使用 mvn tomcat7:run 运行应用程序时，我收到以下异常：
org.codehaus.classworlds.NoSuchRealmException: plexus.core
at org.codehaus.classworlds.ClassWorld.getRealm(ClassWorld.java:128)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:434)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
为什么？我的配置有问题吗，或者我遗漏了什么？
I am trying to use an Apache Maven Tomcat plugin for Tomcat 7,
so I added the following dependency to the POM file:
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-classworlds</artifactId>
<version>2.4</version>
</dependency>
Plugin configuration:
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.0-SNAPSHOT</version>
<configuration>
<path>/${project.build.finalName}</path>
</configuration>
</plugin>
Repositories:
<repositories>
<repository>
<id>people.apache.snapshots</id>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>apache.snapshots</id>
<name>Apache Snapshots</name>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
Maven OPTS:
-Xmx512m -Xms256m -XX:MaxPermSize=512m
but when running the application with mvn tomcat7:run i am getting following exception:
org.codehaus.classworlds.NoSuchRealmException: plexus.core
at org.codehaus.classworlds.ClassWorld.getRealm(ClassWorld.java:128)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:434)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Why? Do I have something wrong in configuration, or I am missing something?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
当我收到此错误时，我尝试在 Jenkins 上 mvn 打包 maven:grails 应用程序。奇怪的是，我让它在我的旧 Hudson CI 服务器。要解决这个问题，我所要做的就是将以下 JVM 选项添加到 package 命令的配置中：
单击“高级...”
When I got this error, I was trying to mvn package a maven:grails app on Jenkins. The weird part was that I had it working on my old Hudson CI server. All I had to do to fix the problem was add the following JVM options to the configuration for the package command:
Click "Advanced..."
我自己在使用时也遇到了同样的问题。看起来，当 plexus 代码运行时，它不能很好地处理 OutOfMemory 异常。
如果在构建期间增加分配给 JVM 的内存量，您会发现错误消失了。问题是堆栈的 PermSize。请参考此链接：Java JVM 内存入门 了解有关如何配置 JVM 内存的详细信息。
尝试使用如下设置：
I experienced the same issues myself when using this. It seems that when the plexus code runs, it does not handle OutOfMemory Exceptions well.
If you increase the allocated amount of memory to the JVM during the build, you will find that the error goes away. The problem is the PermSize for the stack. Refer to this link: Get started with java JVM memory for details on how to configure your JVM Memory.
Try using settings as such:
通过控制台运行：
或设置环境参数：
使用系统环境文件：在“/etc/environment”文件中添加MAVEN_OPTS="-Xms512m -Xmx2048m -XX:MaxPermSize=1024m"。
接下来运行：
在 Eclipse 中使用，添加到 MVN 参数如下：（
这对我有用）
Run by console:
Or set environment parameter:
Using system environment file: Add MAVEN_OPTS="-Xms512m -Xmx2048m -XX:MaxPermSize=1024m" in "/etc/environment" file.
And next run:
Use in Eclipse, adding to MVN Arguments following:
(It works to me)