The static function `getAllStackTraces()` returns the map of stack traces regarding all the live threads. **Threads** are referred to as keys of maps. Every map value is an array of `StackTraceElement`. This array shows the stack dump of related threads.
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## Syntax

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```java
static Map<Thread , StackTraceElement[]> getAllStackTraces()
```
---

## Parameters
It does not take any arguments.

## Return Value

`Map<Thread , StackTraceElement[]>`: This function returns the map to an array of `StackTraceElement`. This array contains the stack traces of related threads.

## Example

In the code snippet below, we use this method to extract stack traces.

// Load libraries
import java.lang.Thread;
import java.util.*;
// Main class
public class Main_Thread implements Runnable {
   public void run() {
      System.out.println("---- run() function called ----");
   }
  // main method
   public static void main(String args[]) {
     Main_Thread th_trace = new Main_Thread();
      Thread th = new Thread(th_trace);
      // calling run() function
      th.start();
      // returning the map that contains stack traces
      Map mp = Thread.getAllStackTraces();
      int i=0;
      for(Object key : mp.keySet()){
         System.out.print(i + "\t");
         System.out.println("Key="+ key + "\t" +
                     "Value=" + mp.get(key));
         i++;
         }
   }
}


What is thread getAllStackTraces() function in Java?

Returns a map of stack traces of all live threads, using methods without arguments.