Java POM插件问题(无法解析mojo配置org.codehaus.mojo:exec-maven-plugin).

Question

当我运行mvn package exec:java我得到了错误。可能我有execen -maven-plugin插件配置的问题。我试图在谷歌云平台应用程序引擎上运行这个演示，但部署总是失败。但是如果我在本地通过mvm package编译它它工作得很好，而且我可以在本地运行应用程序，没有任何问题。

POM:

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.1</version>
<packaging>${packaging}</packaging>
<parent>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-parent</artifactId>
<version>2.3.1</version>
</parent>
<properties>
<packaging>jar</packaging>
<jdk.version>11</jdk.version>
<release.version>11</release.version>
<micronaut.version>2.3.1</micronaut.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<exec.mainClass>com.primari.backend.Application</exec.mainClass>
<micronaut.runtime>netty</micronaut.runtime>
<log4j.version>2.9.1</log4j.version>
</properties>
<dependencies>
<dependency>
<groupId>com.github.xmlet</groupId>
<artifactId>htmlflow</artifactId>
<version>3.5</version>
<exclusions>
<exclusion>
<artifactId>commons-lang3</artifactId>
<groupId>org.apache.commons</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.16</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-validation</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-runtime</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-http-client</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-http-server-netty</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>io.micronaut.test</groupId>
<artifactId>micronaut-test-junit5</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.4.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.11</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>2.2.0</version>
<configuration>
<projectId>primari</projectId>
<version>2</version>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>${exec.mainClass}</mainClass>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<configuration>
<executable>java</executable>
<arguments>
<argument>-noverify</argument>
<argument>-XX:TieredStopAtLevel=1</argument>
<argument>-Dcom.sun.management.jmxremote</argument>
<argument>-classpath</argument>
<classpath/>
<argument>${exec.mainClass}</argument>
</arguments>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.0</version>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<encoding>UTF-8</encoding>
<compilerArgs>
<arg>-parameters</arg>
</compilerArgs>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.16</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject-java</artifactId>
<version>2.3.1</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-validation</artifactId>
<version>2.3.1</version>
</path>
</annotationProcessorPaths>
</configuration>
<executions>
<execution>
<id>test-compile</id>
<goals>
<goal>testCompile</goal>
</goals>
<configuration>
<compilerArgs>
<arg>-parameters</arg>
</compilerArgs>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.16</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject-java</artifactId>
<version>2.3.1</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-validation</artifactId>
<version>2.3.1</version>
</path>
</annotationProcessorPaths>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

错误:

[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ demo ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  22.012 s
[INFO] Finished at: 2021-02-07T12:23:25+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project demo: Unable to parse configuration of mojo org.codehaus.mojo:exec-maven-plugin:1.6.0:java for parameter arguments: Cannot store value into array: arraycopy: element type mismatch: can not cast one of the elements of java.lang.Object[] to the type of the destination array, java.lang.String -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginConfigurationException

你能帮我在哪里可以通过一个问题或我错过了什么?

Answer 1

删除空的<classpath/>,exec:java目标中不允许存在，只接受字符串值，请参见doc exec plugin doc

另一件事是micronaut覆盖maven exec插件参数部分见项目的有效pom，所以可能的解决方案是:

<arguments combine.self="override">
<argument>-noverify</argument>
<argument>-XX:TieredStopAtLevel=1</argument>
<argument>-Dcom.sun.management.jmxremote</argument>
<argument>-classpath</argument>    
<argument>${exec.mainClass}</argument>
</arguments>

Answer 2

他可能和你有同样的问题。执行目标org.codehaus.mojo:exec-maven-plugin:3.0.0:exec (default-cli)项目失败
我不明白，但尝试

<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<classpathScope>test</classpathScope>
</configuration>
</plugin>
</plugins>
</build>