IntelliJ IDEA插件开发遭遇ClassNotFoundException求助

开发IntelliJ IDEA插件时触发ClassNotFoundException，无法加载HelloWorldAction类，检查类路径、插件描述文件及加载状态后问题仍未解决，寻求解决方案。

关键信息 #

• IntelliJ IDEA版本：2022.2.5
• JDK版本：17.0.6

异常信息 #

Caused by: java.lang.ClassNotFoundException: com.example.plugdemo.HelloWorldAction

插件配置文件（plugin.xml） #

<!-- Plugin Configuration File. Read more: https://plugins.jetbrains.com/docs/intellij/plugin-configuration-file.html -->
<idea-plugin>
    <id>com.example.plugdemo</id>
    <name>Plugdemo</name>
    <vendor email="support@yourcompany.com" url="https://www.yourcompany.com">YourCompany</vendor>
    <description><![CDATA[
    Enter short description for your plugin here.<br>
    <em>most HTML tags may be used</em>
  ]]></description>
    <depends>com.intellij.modules.platform</depends>
    <extensions defaultExtensionNs="com.intellij"></extensions>
    <actions>
        <action id="demo.hello.world" class="com.example.plugdemo.HelloWorldAction" text="HelloWorld"
                description="the HelloWorld Action">
            <add-to-group group-id="HelpMenu" anchor="first"/>
        </action>
    </actions>
</idea-plugin>

HelloWorldAction类代码 #

package com.example.plugdemo;

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.psi.PsiFile;

public class HelloWorldAction extends AnAction {

    @Override
    public void actionPerformed(AnActionEvent e) {
        Project project = e.getData(PlatformDataKeys.PROJECT);
        PsiFile psiFile = e.getData(CommonDataKeys.PSI_FILE);
        String classPath = psiFile.getVirtualFile().getPath();
        String title = "Hello World!";
        Messages.showMessageDialog(project, classPath, title, Messages.getInformationIcon());
    }
}

已尝试方案 #

• 重建项目
• 检查插件描述文件中的类路径配置
• 确认插件在IDEA中已正确加载

请问是否有开发者遇到过类似问题？或者有其他排查/解决方向？如需更多信息（如项目结构截图）可补充提供。感谢帮助！🙏

内容的提问来源于stack exchange，提问作者red-dragon