code: private void sawMonitorEnter(int pc) {
          monitorSyncPCs.add(Integer.valueOf(pc));
  
          ScopeBlock sb = new ScopeBlock(pc, Integer.MAX_VALUE);
          sb.setSync();
          rootScopeBlock.addChild(sb);
      }
docs: processes a monitor enter call to create a scope block
  
  @param pc
  the current program counter