Debugger mistakenly included Gradle build folder in classpaths

1. Open spring-petclinic project using VS Code with Java Ext Pack installed
2. When hint to choose between Maven or Gradle, pick Gradle and import the project
3. In terminal, build the project using gradle by ./gradlew build
4. Now launch the project, and inspect the argfile

Both bin and build folders are in the classpath, and it will introduce unexpected consequences.

For example, in the spring-petclinic project, the database initialization script will be executed twice due to the extra classpath entry, resulting in duplicated records in db. This is really hard to troubleshoot and will cause serious confusion.

build folder should not be included in this case.

使用 spring-petclinic 项目重现该问题：选择 Gradle，运行 ./gradlew build，启动项目并检查 argfile。跟踪添加 bin 和 build 文件夹的 classpath 处理；当生成的 classpath 中不包含 build 文件夹且不再发生重复的数据库初始化时，即表示完成。