进行多次测试后发现是因为没有正常退出进程，以及完全读取掉流数据，和关闭流导致的问题。

在多次优化后，建立如下封装类：

ProcessModel.java

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

/**

* Create By Qiujuer

* 2014-07-26

*

* 执行命令行语句静态方法封装

*/

public class ProcessModel {

//换行符

private static final String BREAK_LINE;

//执行退出命令

private static final byte[] COMMAND_EXIT;

//错误缓冲

private static byte[] BUFFER;

/**

* 静态变量初始化

*/

static {

BREAK_LINE = "\n";

COMMAND_EXIT = "\nexit\n".getBytes();

BUFFER = new byte[32];

}

/**

* 执行命令

*

* @param params 命令参数

*

 eg: "/system/bin/ping", "-c", "4", "-s", "100","www.qiujuer.net"

* @return 执行结果

*/

public static String execute(String... params) {

Process process = null;

StringBuilder sbReader = null;

BufferedReader bReader = null;

InputStreamReader isReader = null;

InputStream in = null;

InputStream err = null;

OutputStream out = null;

try {

process = new ProcessBuilder()

.command(params)

.start();

out = process.getOutputStream();

in = process.getInputStream();

err = process.getErrorStream();

out.write(COMMAND_EXIT);

out.flush();

process.waitFor();

isReader = new InputStreamReader(in);

bReader = new BufferedReader(isReader);

String s;

if ((s = bReader.readLine()) != null) {

sbReader = new StringBuilder();

sbReader.append(s);

sbReader.append(BREAK_LINE);

while ((s = bReader.readLine()) != null) {

sbReader.append(s);

sbReader.append(BREAK_LINE);

}

}

while ((err.read(BUFFER)) > 0) {

}

} catch (IOException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

} finally {

closeAllStream(out, err, in, isReader, bReader);

if (process != null) {

processDestroy(process);

process = null;

}

}

if (sbReader == null)

return null;

else

return sbReader.toString();

}

/**

* 关闭所有流

*

* @param out 输出流

* @param err 错误流

* @param in 输入流

* @param isReader 输入流封装

* @param bReader 输入流封装

*/

private static void closeAllStream(OutputStream out, InputStream err, InputStream in, InputStreamReader isReader, BufferedReader bReader) {

if (out != null)

try {

out.close();

} catch (IOException e) {

e.printStackTrace();

}

if (err != null)

try {

err.close();

} catch (IOException e) {

e.printStackTrace();

}

if (in != null)

try {

in.close();

} catch (IOException e) {

e.printStackTrace();

}

if (isReader != null)

try {

isReader.close();

} catch (IOException e) {

e.printStackTrace();

}

if (bReader != null)

try {

bReader.close();

} catch (IOException e) {

e.printStackTrace();

}

}

/**

* 通过Android底层实现进程关闭

*

* @param process 进程

*/

private static void killProcess(Process process) {

int pid = getProcessId(process);

if (pid != 0) {

try {

//android kill process

android.os.Process.killProcess(pid);

} catch (Exception e) {

try {

process.destroy();

} catch (Exception ex) {

}

}

}

}

/**

* 获取进程的ID

*

* @param process 进程

* @return

*/

private static int getProcessId(Process process) {

String str = process.toString();

try {

int i = str.indexOf("=") + 1;

int j = str.indexOf("]");

str = str.substring(i, j);

return Integer.parseInt(str);

} catch (Exception e) {

return 0;

}

}

/**

* 销毁进程

*

* @param process 进程

*/

private static void processDestroy(Process process) {

if (process != null) {

try {

//判断是否正常退出

if (process.exitValue() != 0) {

killProcess(process);

}

} catch (IllegalThreadStateException e) {

killProcess(process);

}

}

}

}

在进行批量压力测试到达125643个线程的时候都没有出现此问题；特此分享给大家。