Getting exception while running adb commands programmatically

Question

I am trying to get list of adb devices through code but getting an exception when starting the ProcessBuilder.

Here is my Code -->

try {
                ProcessBuilder pb = new ProcessBuilder("adb.exe", "adb devices");
                pb.directory(new File("C:\\Users\\user\\AppData\\Local\\Android\\sdk\\platform-tools"));

                Process p = pb.start(); // here is the xception
                BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));  
                String line = null;  

                Pattern pattern = Pattern.compile("^([a-zA-Z0-9\\-]+)(\\s+)(device)");
                Matcher matcher;

                while ((line = in.readLine()) != null) {  
                    if (line.matches(pattern.pattern())) {
                        matcher = pattern.matcher(line);
                        if (matcher.find())
                            System.out.println(matcher.group(1));
                    }
                }

Here is the Exception stacktrace -->

java.io.IOException: Cannot run program "adb.exe" (in directory "C:\Users\user\AppData\Local\Android\sdk\platform-tools"): CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(Unknown Source) at MainTest.Example.main(Example.java:45) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 2 more

I have tried after changing commands in ProcessBuilder but no luck.

Need help please.

Vyacheslav · Accepted Answer · 2017-01-20 12:14:37Z

3

this should work

ProcessBuilder pb = new ProcessBuilder("C:\\Users\\<your user name>\\AppData\\Local\\Android\\sdk\\platform-tools\\adb.exe", "adb devices");

Do not forget: <your user name> - set your name

or put C:\Users\<your user name>\AppData\Local\Android\sdk\platform-tools\ into windows PATH variable.

answered Jan 20, 2017 at 12:14

Vyacheslav

27.3k22 gold badges124 silver badges209 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

vv88 Over a year ago

Now I can see adb.exe is started in Task Manager but it seems adb devices command is not executed and flow is stuck at while ((line = in.readLine()) != null).

Vyacheslav Over a year ago

@vv88 , first of all , change new ProcessBuilder("adb.exe", "adb devices"); into ` new ProcessBuilder("adb.exe", "adb","devices");`

vv88 Over a year ago

I have change it to

ProcessBuilder pb = new ProcessBuilder("C:\\Users\\vv88\\AppData\\Local\\Android\\sdk\\platform-tools\\adb.exe", "adb", "devices");

but still stuck at same point. Thanks for helping me out.

Vyacheslav Over a year ago

@vv88 does simple pb.waitFor() works? or it hands too?

vv88 Over a year ago

I have put p.waitFor() after pb.start(). As per javadoc waitFor() method will wait untill process represented by p is not terminated. So now I am stuck at `p.waitFor()'.

|

vv88 · Accepted Answer · 2017-01-20 13:47:33Z

After a lot of help and suggestions from Vyacheslav over the chat here is the working solution for the community -->

try 
            {

                ProcessBuilder pb = new ProcessBuilder("C:\\Users\\<Your User Name Here>\\AppData\\Local\\Android\\sdk\\platform-tools\\adb.exe", "devices");

                //pb.redirectErrorStream(true); // can use these 2 line if you want to see output or errors in file.
                //pb.redirectOutput(new File("C:/pbOutput.Txt"));

                Process p = pb.start();

                while(p == null)
                    Thread.sleep(1000);

                BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));

                String line = null;  

                Pattern pattern = Pattern.compile("^([a-zA-Z0-9\\-]+)(\\s+)(device)");
                Matcher matcher;


                while ((line = in.readLine()) != null) {  
                    if (line.matches(pattern.pattern())) {
                        matcher = pattern.matcher(line);
                        if (matcher.find())
                            System.out.println(matcher.group(1));
                    }
                }  
            } 
            catch (IOException e) 
            {
                e.printStackTrace();
            }

I just need to find out why "adb devices" did not work.

Sushil Pawar · Accepted Answer · 2022-11-17 10:15:43Z

0

This will for mac If yor are using zsh :

Runtime.getRuntime().exec(new String[]{"zsh", "-l", "-c", commands})

in commands we can pass "adb devices" or another commands

At my end its working

answered Nov 17, 2022 at 10:15

Sushil Pawar

72 bronze badges

Collectives™ on Stack Overflow

Getting exception while running adb commands programmatically

3 Answers 3

7 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

7 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related