Program: 24011
Project: 24011
Buggy source:
protected void handlePollCalls(AsyncResult ar){
  List polledCalls;
  if (ar.exception == null) {
    polledCalls=(List)ar.result;
  }
 else   if (isCommandExceptionRadioNotAvailable(ar.exception)) {
    polledCalls=new ArrayList();
  }
 else {
    pollCallsAfterDelay();
    return;
  }
  Connection newRinging=null;
  boolean hasNonHangupStateChanged=false;
  boolean needsPollDelay=false;
  boolean unknownConnectionAppeared=false;
  for (int i=0, curDC=0, dcSize=polledCalls.size(); i < connections.length; i++) {
    CdmaConnection conn=connections[i];
    DriverCall dc=null;
    if (curDC < dcSize) {
      dc=(DriverCall)polledCalls.get(curDC);
      if (dc.index == i + 1) {
        curDC++;
      }
 else {
        dc=null;
      }
    }
    if (DBG_POLL)     log("String_Node_Str" + i + "String_Node_Str"+ conn+ "String_Node_Str"+ dc);
    if (conn == null && dc != null) {
      if (pendingMO != null && pendingMO.compareTo(dc)) {
        if (DBG_POLL)         log("String_Node_Str" + pendingMO);
        connections[i]=pendingMO;
        pendingMO.index=i;
        pendingMO.update(dc);
        pendingMO=null;
        if (hangupPendingMO) {
          hangupPendingMO=false;
          try {
            if (Phone.DEBUG_PHONE)             log("String_Node_Str" + i);
            hangup(connections[i]);
          }
 catch (          CallStateException ex) {
            Log.e(LOG_TAG,"String_Node_Str");
          }
          return;
        }
      }
 else {
        connections[i]=new CdmaConnection(phone.getContext(),dc,this,i);
        if (connections[i].getCall() == ringingCall) {
          newRinging=connections[i];
        }
 else {
          Log.i(LOG_TAG,"String_Node_Str" + dc);
          if (dc.state != DriverCall.State.ALERTING && dc.state != DriverCall.State.DIALING) {
            connections[i].connectTime=System.currentTimeMillis();
          }
          unknownConnectionAppeared=true;
        }
      }
      hasNonHangupStateChanged=true;
    }
 else     if (conn != null && dc == null) {
      int count=foregroundCall.connections.size();
      if (count == 0) {
        droppedDuringPoll.add(conn);
      }
 else {
        for (int n=0; n < count; n++) {
          CdmaConnection cn=(CdmaConnection)foregroundCall.connections.get(n);
          droppedDuringPoll.add(cn);
        }
      }
      foregroundCall.setGeneric(false);
      connections[i]=null;
    }
 else     if (conn != null && dc != null && !conn.compareTo(dc)) {
      droppedDuringPoll.add(conn);
      connections[i]=new CdmaConnection(phone.getContext(),dc,this,i);
      if (connections[i].getCall() == ringingCall) {
        newRinging=connections[i];
      }
      hasNonHangupStateChanged=true;
    }
 else     if (conn != null && dc != null) {
      boolean changed;
      changed=conn.update(dc);
      hasNonHangupStateChanged=hasNonHangupStateChanged || changed;
    }
    if (REPEAT_POLLING) {
      if (dc != null) {
        if ((dc.state == DriverCall.State.DIALING) || (dc.state == DriverCall.State.ALERTING) || (dc.state == DriverCall.State.INCOMING)|| (dc.state == DriverCall.State.WAITING)) {
          needsPollDelay=true;
        }
      }
    }
  }
  if (pendingMO != null) {
    Log.d(LOG_TAG,"String_Node_Str" + foregroundCall.getState());
    droppedDuringPoll.add(pendingMO);
    pendingMO=null;
    hangupPendingMO=false;
    if (pendingCallInECM) {
      pendingCallInECM=false;
    }
  }
  if (newRinging != null) {
    phone.notifyNewRingingConnection(newRinging);
  }
  for (int i=droppedDuringPoll.size() - 1; i >= 0; i--) {
    CdmaConnection conn=droppedDuringPoll.get(i);
    if (conn.isIncoming() && conn.getConnectTime() == 0) {
      Connection.DisconnectCause cause;
      if (conn.cause == Connection.DisconnectCause.LOCAL) {
        cause=Connection.DisconnectCause.INCOMING_REJECTED;
      }
 else {
        cause=Connection.DisconnectCause.INCOMING_MISSED;
      }
      if (Phone.DEBUG_PHONE) {
        log("String_Node_Str" + conn.cause);
        log("String_Node_Str" + cause);
      }
      droppedDuringPoll.remove(i);
      conn.onDisconnect(cause);
    }
 else     if (conn.cause == Connection.DisconnectCause.LOCAL) {
      droppedDuringPoll.remove(i);
      conn.onDisconnect(Connection.DisconnectCause.LOCAL);
    }
 else     if (conn.cause == Connection.DisconnectCause.INVALID_NUMBER) {
      droppedDuringPoll.remove(i);
      conn.onDisconnect(Connection.DisconnectCause.INVALID_NUMBER);
    }
  }
  if (droppedDuringPoll.size() > 0) {
    cm.getLastCallFailCause(obtainNoPollCompleteMessage(EVENT_GET_LAST_CALL_FAIL_CAUSE));
  }
  if (needsPollDelay) {
    pollCallsAfterDelay();
  }
  if (newRinging != null || hasNonHangupStateChanged) {
    internalClearDisconnected();
  }
  updatePhoneState();
  if (unknownConnectionAppeared) {
    phone.notifyUnknownConnection();
  }
  if (hasNonHangupStateChanged || newRinging != null) {
    phone.notifyPreciseCallStateChanged();
  }
}

Fixed version (ground truth):
protected void handlePollCalls(AsyncResult ar){
  List polledCalls;
  if (ar.exception == null) {
    polledCalls=(List)ar.result;
  }
 else   if (isCommandExceptionRadioNotAvailable(ar.exception)) {
    polledCalls=new ArrayList();
  }
 else {
    pollCallsAfterDelay();
    return;
  }
  Connection newRinging=null;
  boolean hasNonHangupStateChanged=false;
  boolean needsPollDelay=false;
  boolean unknownConnectionAppeared=false;
  for (int i=0, curDC=0, dcSize=polledCalls.size(); i < connections.length; i++) {
    CdmaConnection conn=connections[i];
    DriverCall dc=null;
    if (curDC < dcSize) {
      dc=(DriverCall)polledCalls.get(curDC);
      if (dc.index == i + 1) {
        curDC++;
      }
 else {
        dc=null;
      }
    }
    if (DBG_POLL)     log("String_Node_Str" + i + "String_Node_Str"+ conn+ "String_Node_Str"+ dc);
    if (conn == null && dc != null) {
      if (pendingMO != null && pendingMO.compareTo(dc)) {
        if (DBG_POLL)         log("String_Node_Str" + pendingMO);
        connections[i]=pendingMO;
        pendingMO.index=i;
        pendingMO.update(dc);
        pendingMO=null;
        if (hangupPendingMO) {
          hangupPendingMO=false;
          try {
            if (Phone.DEBUG_PHONE)             log("String_Node_Str" + i);
            hangup(connections[i]);
          }
 catch (          CallStateException ex) {
            Log.e(LOG_TAG,"String_Node_Str");
          }
          return;
        }
      }
 else {
        connections[i]=new CdmaConnection(phone.getContext(),dc,this,i);
        if (connections[i].getCall() == ringingCall) {
          newRinging=connections[i];
        }
 else {
          Log.i(LOG_TAG,"String_Node_Str" + dc);
          if (dc.state != DriverCall.State.ALERTING && dc.state != DriverCall.State.DIALING) {
            connections[i].connectTime=System.currentTimeMillis();
          }
          unknownConnectionAppeared=true;
        }
      }
      hasNonHangupStateChanged=true;
    }
 else     if (conn != null && dc == null) {
      int count=foregroundCall.connections.size();
      if (count == 0) {
        droppedDuringPoll.add(conn);
      }
 else {
        for (int n=0; n < count; n++) {
          CdmaConnection cn=(CdmaConnection)foregroundCall.connections.get(n);
          droppedDuringPoll.add(cn);
        }
      }
      foregroundCall.setGeneric(false);
      connections[i]=null;
    }
 else     if (conn != null && dc != null) {
      boolean changed;
      changed=conn.update(dc);
      hasNonHangupStateChanged=hasNonHangupStateChanged || changed;
    }
    if (REPEAT_POLLING) {
      if (dc != null) {
        if ((dc.state == DriverCall.State.DIALING) || (dc.state == DriverCall.State.ALERTING) || (dc.state == DriverCall.State.INCOMING)|| (dc.state == DriverCall.State.WAITING)) {
          needsPollDelay=true;
        }
      }
    }
  }
  if (pendingMO != null) {
    Log.d(LOG_TAG,"String_Node_Str" + foregroundCall.getState());
    droppedDuringPoll.add(pendingMO);
    pendingMO=null;
    hangupPendingMO=false;
    if (pendingCallInECM) {
      pendingCallInECM=false;
    }
  }
  if (newRinging != null) {
    phone.notifyNewRingingConnection(newRinging);
  }
  for (int i=droppedDuringPoll.size() - 1; i >= 0; i--) {
    CdmaConnection conn=droppedDuringPoll.get(i);
    if (conn.isIncoming() && conn.getConnectTime() == 0) {
      Connection.DisconnectCause cause;
      if (conn.cause == Connection.DisconnectCause.LOCAL) {
        cause=Connection.DisconnectCause.INCOMING_REJECTED;
      }
 else {
        cause=Connection.DisconnectCause.INCOMING_MISSED;
      }
      if (Phone.DEBUG_PHONE) {
        log("String_Node_Str" + conn.cause);
        log("String_Node_Str" + cause);
      }
      droppedDuringPoll.remove(i);
      conn.onDisconnect(cause);
    }
 else     if (conn.cause == Connection.DisconnectCause.LOCAL) {
      droppedDuringPoll.remove(i);
      conn.onDisconnect(Connection.DisconnectCause.LOCAL);
    }
 else     if (conn.cause == Connection.DisconnectCause.INVALID_NUMBER) {
      droppedDuringPoll.remove(i);
      conn.onDisconnect(Connection.DisconnectCause.INVALID_NUMBER);
    }
  }
  if (droppedDuringPoll.size() > 0) {
    cm.getLastCallFailCause(obtainNoPollCompleteMessage(EVENT_GET_LAST_CALL_FAIL_CAUSE));
  }
  if (needsPollDelay) {
    pollCallsAfterDelay();
  }
  if (newRinging != null || hasNonHangupStateChanged) {
    internalClearDisconnected();
  }
  updatePhoneState();
  if (unknownConnectionAppeared) {
    phone.notifyUnknownConnection();
  }
  if (hasNonHangupStateChanged || newRinging != null) {
    phone.notifyPreciseCallStateChanged();
  }
}