执行java代码报错

[daijun-hub]

{
"language": "java",
"code": "public class HelloWorld {\n public static void main(String[] args) {\n System.out.println("Hello, World!");\n }\n}",
"timeout": "30",
"fetch_files": ""
}

Run failed: Failed to transform tool message: PluginInvokeError: {"args":{},"error_type":"AttributeError","message":"'NoneType' object has no attribute 'dict'"}