java - 带有 maven-antrun-plugin 的 Maven Ant BuildException ...无法找到 javac 编译器

Question

我正在尝试让 Maven 为一些遗留代码调用 ANT 构建。 ant 构建通过 ant 正确构建。但是，当我使用 maven ant 插件调用它时，它失败并出现以下错误:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run      (default) on project CoreServices: An Ant BuildException has occured: The following error occurred while executing this line:
[ERROR] C:\dev\projects\build\build.xml:158: The following error occurred while executing this line:
[ERROR] C:\dev\projects\build\build.xml:62: The following error occurred while executing this line:
[ERROR] C:\dev\projects\build\build.xml:33: The following error occurred while executing this line:
[ERROR] C:\dev\projects\ods\build.xml:41: Unable to find a javac compiler;
[ERROR] com.sun.tools.javac.Main is not on the classpath.
[ERROR] Perhaps JAVA_HOME does not point to the JDK.
[ERROR] It is currently set to "C:\bea\jdk150_11\jre"

我的 javac 存在于 C:\bea\jdk150_11\bin 并且它适用于所有其他东西。我不确定 Maven 从哪里获得这个版本的 JAVA_HOME。 windows环境变量中的JAVA_HOME应该设置为C:\bea\jdk150_11\。

我用来调用 build.xml 的 Maven 代码是

<build>
   <plugins>
    <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-antrun-plugin</artifactId>
     <version>1.6</version>

     <executions>
          <execution>
            <phase>install</phase>
            <configuration>

              <target>
    <ant antfile="../build/build.xml" target="deliver" >
    </ant>
              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
    </plugin>
   </plugins>
  </build>

Answer 1

第一件事:为什么你在install阶段而不是在compile阶段执行你的ANT脚本？

第二件事:你的问题可能是由于Maven执行的是JRE而不是JDK，尽管你的JAVA_HOME指向的是JDK。要解决此问题，您必须手动调整 maven-antrun-plugin 的依赖项。这只是一个例子:

<plugin>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.6</version>
    <dependencies>
        <dependency>
            <groupId>com.sun</groupId>
            <artifactId>tools</artifactId>
            <version>1.5.0</version>
            <scope>system</scope>
            <systemPath>${java.home}/../lib/tools.jar</systemPath>
        </dependency>
    </dependencies>
    <executions>
        <execution>
            <phase>compile</phase>
            <configuration><target><ant/></target></configuration>
            <goals><goal>run</goal></goals>
        </execution>
    </executions>
</plugin>