shadows/framework/src/main/java/org/robolectric/shadows/ShadowProcess.java
@Implementation
  protected static final int getThreadPriority(int tid) {
    if (tid == 0) {
      tid = ShadowProcess.myTid();
    }
    synchronized (threadPrioritiesLock) {
      return threadPriorities.getOrDefault(tid, 0);
    }
  }
@Implementation
  protected static final int getThreadPriority(int tid) {
    if (tid == 0) {
      tid = ShadowProcess.myTid();
    }
    synchronized (threadPrioritiesLock) {
      return threadPriorities.getOrDefault(tid, 0);
    }
  }
@ Implementation protected static final int getThreadPriority ( int tid ) { if ( tid == 0 ) { tid = ShadowProcess . myTid ( ) ; } synchronized ( threadPrioritiesLock ) { return threadPriorities . getOrDefault ( tid , 0 ) ; } }
Returns priority stored for the given thread.

@param tid The identifier of the thread. If equals zero, the identifier of the calling thread
will be used.
Returns priority stored for the given thread .