Java调用Python脚本返回退出码9009问题排查求助

我编写了一个Python脚本，通过Windows硬件ID检测计算机端口中是否存在特定读卡器，最终返回True或False。该脚本在IntelliJ、PyCharm、VS Code中单独运行均正常，但通过Java的BufferedReader和InputStreamReader调用时，Python返回退出码9009。

已尝试的操作 #

• 检查Python解释器、版本等信息，脚本可在Java IDE（IntelliJ）内正常运行
• 在外部环境直接运行脚本无任何报错
• 分别使用绝对路径和项目根路径指定脚本路径，均无效（当前代码已使用绝对路径）

相关代码 #

Python脚本（路径：C:\CS IA\src\java\findUSB.py，Python版本3.11.4） #

import usbmonitor
from usbmonitor.attributes import ID_MODEL, ID_MODEL_ID, ID_VENDOR_ID


lookFor= "USB\\VID_058F&PID_9540\\5&54725E2&0&2"
def is_connected(lookFor):
    # Create the USBMonitor instance
    monitor = usbmonitor.USBMonitor()

    # Get the current devices
    devices_dict = monitor.get_available_devices()

    # Check if the device is connected
    for device_id, device_info in devices_dict.items():
        if device_id.split('\\')[1] == lookFor.split('\\')[1]:
            return True

    return False


# Look for the specific device
if is_connected("USB\\VID_058F&PID_9540\\5&54725E2&0&2"):
    print("Found")
else:
    print("Not Found")


if __name__ == "__main__":
    print("hello world from python file at: src/java/findUSB.py")
    print(is_connected(lookFor))

# Path: src\java\findUSB.py

Java代码 #

public boolean usbConnected() {

    try {
        String pythonScript = "python3";  // Specify the Python interpreter to use (use "python" for Python 2)
        String scriptPath = "C:\\CS IA\\src\\java\\findUSB.py";  // Path to the Python script
        ProcessBuilder processBuilder = new ProcessBuilder(pythonScript, scriptPath);
        Process process = processBuilder.start();
        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line = null;


        boolean isConnected = false;  // Initialize the boolean variable

        while ((line = reader.readLine()) != null) {
            // Process output of Python script and update the boolean variable
            isConnected = Boolean.parseBoolean(line.trim());
        }

        int exitCode = process.waitFor();
        System.out.println("Python script exited with code: " + exitCode);

        // Now you can use the 'isConnected' variable to check the result
        if (isConnected) {
            System.out.println("The device is connected.");
            return true;
        } 
        else {
            System.out.println("The device is not connected.");
            return false;
        }
    } 
    catch (IOException | InterruptedException e) {
        e.printStackTrace();
        return false;
    }
}

补充说明 #

我知晓可通过Java专用包实现检测，但为提升Python技能选择此方案。

内容的提问来源于stack exchange，提问作者Shaked Ben Eliezer