exec-maven-plugin exec:java 失败：无法将配置值分配给 java.lang.String 类型的数组
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exec-maven-plugin exec:java failing: Cannot assign configuration values to array of type java.lang.String
提问by David Camilleri
When executing mvn exec:javait fails to correctly parse the configuration arguments, throwing the following error:
执行mvn exec:java时无法正确解析配置参数，抛出以下错误：
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:java (default-cli) on project autotest-programmes: Unable to parse configuration of mojo org.codehaus.mojo:exec-maven-plugin:1.2.1:java: Cannot assign configuration values to array of type java.lang.String: [-classpath, Classpath {}, --glue, com.company.test.cucumber, --format, pretty, --format, html:C:\workspace\autotest\target] -> [Help 1]
[错误] 无法在项目 autotest-programmes 上执行目标 org.codehaus.mojo:exec-maven-plugin:1.2.1:java (default-cli)：无法解析 mojo org.codehaus.mojo:exec-maven 的配置-plugin:1.2.1:java: 无法将配置值分配给 java.lang.String 类型的数组：[-classpath, Classpath {}, --glue, com.company.test.cucumber, --format, Pretty, - -格式，html:C:\workspace\autotest\target] -> [帮助 1]
This is the plugin configuration used (using Apache Maven 3.0.3):
这是使用的插件配置（使用 Apache Maven 3.0.3）：
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<includeProjectDependencies>false</includeProjectDependencies>
<includePluginDependencies>true</includePluginDependencies>
<executableDependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-core</artifactId>
</executableDependency>
<mainClass>cucumber.cli.Main</mainClass>
<commandlineArgs>-Dfile.encoding=UTF-8</commandlineArgs>
<arguments>
<argument>-classpath</argument>
<classpath/>
<argument>--glue</argument>
<argument>com.company.test.cucumber</argument>
<argument>--format</argument>
<argument>pretty</argument>
<argument>--format</argument>
<argument>html:${project.basedir}\target</argument>
</arguments>
</configuration>
<dependencies>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-core</artifactId>
<version>1.0.2</version>
</dependency>
</dependencies>
</plugin>
采纳答案by khmarbaise
I would suggest to remove the empty entries from your configuration and try it again.
我建议从您的配置中删除空条目，然后再试一次。
<argument>-classpath</argument>
<classpath/>
Cause in java goal the classpath is not allowed based on the documentation.
原因在 java 目标中，基于文档不允许类路径。
BTW: Never use "\" in your maven pom. Use forward slashes instead.
顺便说一句：永远不要在你的 maven pom 中使用“\”。请改用正斜杠。
回答by Alex Chernin
According to exec:java Docs here, you have to :
根据exec:java Docs here，您必须：
Remove <arguments>part
移除<arguments>零件
And use <additionalClasspathElements>declarations to define a classpath.
并使用<additionalClasspathElements>声明来定义类路径。
回答by Oliv
If you want to use <classpath/>, you have to use exec:execand not exec:java. You also have to add the executable, which is javain your case:
如果你想使用<classpath/>，你必须使用exec:exec而不是exec:java。您还必须添加可执行文件，这是java您的情况：
<executable>java</executable>
If I understand it correctly, exec:javaautomatically adds the classpath you cannot override it. The arguments are added after the main class. exec:execis more generic, it executes any executable with any arguments, one of which can be the <classpath/>.
如果我理解正确，exec:java则会自动添加您无法覆盖的类路径。参数添加在主类之后。exec:exec更通用，它执行任何带有任何参数的可执行文件，其中之一可以是<classpath/>.
