Java：Process Builder创建僵尸

Question

我在这里做错了吗？没有正确处理流？

我在这里运行一个流程（特别是：mvn exec:java），即使我运行p.killForcibly()，流程也不会终止。

如果我转到命令行并在我从flapdoodle库获取的pid上尝试taskkill /F /PID，我会被拒绝访问＃34;并且这个过程依然存在。

try {
            ProcessBuilder builder = new ProcessBuilder(commands);
            log.createNewFile();
            builder.redirectErrorStream(true);
            builder.redirectOutput(Redirect.appendTo(log));

            final Process p = builder.directory(dir).start();

            Long pid = de.flapdoodle.embed.process.runtime.Processes.processId(p);
            System.out.println("pid: " + pid);

            class InnerRunner implements Runnable {
                public void run() {
                    try {
                        int rc = p.waitFor();
                        if (callback != null)
                            callback.onComplete(rc);
                    } catch (InterruptedException ie) {
                        throw new RuntimeException("process was interuppted", ie);
                    }
                }
            }
            Thread t = new Thread(new InnerRunner());
            return p;
        } catch (IOException ioe) {
            throw new RuntimeException      ("Failed to run process: " + commands + ".  Ran it in: " + dir.getAbsolutePath(), ioe); 
        } catch (Throwable t) {
            throw new RuntimeException("err", t);
        }
Thread t = new Thread(new InnerRunner());

一条可能的线索：输出日志文件我将流程输出重定向到流程仍然保持打开状态。我无法删除它，直到我在任务管理器中终止该过程。