fix(approve): 修复审批流程为空时的异常处理

liyong

2026-04-30 c2ad2126d6f8423e0a5e6e20bbb91ef6bb1cffc0

 src/main/java/com/ruoyi/common/utils/ExceptionUtil.java

@@ -18,8 +18,7 @@
    {

        StringWriter sw = new StringWriter();

        e.printStackTrace(new PrintWriter(sw, true));

        String str = sw.toString();

        return str;

        return sw.toString();

    }



    public static String getRootErrorMessage(Exception e)