// interaction with RequestManagerImpl
 public void disableBreakpoints(@NotNull final DebugProcessImpl debugProcess) {
   final List<Breakpoint> breakpoints = getBreakpoints();
   if (!breakpoints.isEmpty()) {
     final RequestManagerImpl requestManager = debugProcess.getRequestsManager();
     for (Breakpoint breakpoint : breakpoints) {
       breakpoint.markVerified(requestManager.isVerified(breakpoint));
       requestManager.deleteRequest(breakpoint);
     }
     SwingUtilities.invokeLater(
         new Runnable() {
           @Override
           public void run() {
             updateBreakpointsUI();
           }
         });
   }
 }
  public void applyThreadFilter(
      @NotNull final DebugProcessImpl debugProcess, @Nullable ThreadReference newFilterThread) {
    final RequestManagerImpl requestManager = debugProcess.getRequestsManager();
    final ThreadReference oldFilterThread = requestManager.getFilterThread();
    if (Comparing.equal(newFilterThread, oldFilterThread)) {
      // the filter already added
      return;
    }
    requestManager.setFilterThread(newFilterThread);
    if (newFilterThread == null || oldFilterThread != null) {
      final List<Breakpoint> breakpoints = getBreakpoints();
      for (Breakpoint breakpoint : breakpoints) {
        if (LineBreakpoint.CATEGORY.equals(breakpoint.getCategory())
            || MethodBreakpoint.CATEGORY.equals(breakpoint.getCategory())) {
          requestManager.deleteRequest(breakpoint);
          breakpoint.createRequest(debugProcess);
        }
      }
    } else {
      // important! need to add filter to _existing_ requests, otherwise Requestor->Request mapping
      // will be lost
      // and debugger trees will not be restored to original state
      abstract class FilterSetter<T extends EventRequest> {
        void applyFilter(@NotNull final List<T> requests, final ThreadReference thread) {
          for (T request : requests) {
            try {
              final boolean wasEnabled = request.isEnabled();
              if (wasEnabled) {
                request.disable();
              }
              addFilter(request, thread);
              if (wasEnabled) {
                request.enable();
              }
            } catch (InternalException e) {
              LOG.info(e);
            }
          }
        }

        protected abstract void addFilter(final T request, final ThreadReference thread);
      }

      final EventRequestManager eventRequestManager = requestManager.getVMRequestManager();

      new FilterSetter<BreakpointRequest>() {
        @Override
        protected void addFilter(
            @NotNull final BreakpointRequest request, final ThreadReference thread) {
          request.addThreadFilter(thread);
        }
      }.applyFilter(eventRequestManager.breakpointRequests(), newFilterThread);

      new FilterSetter<MethodEntryRequest>() {
        @Override
        protected void addFilter(
            @NotNull final MethodEntryRequest request, final ThreadReference thread) {
          request.addThreadFilter(thread);
        }
      }.applyFilter(eventRequestManager.methodEntryRequests(), newFilterThread);

      new FilterSetter<MethodExitRequest>() {
        @Override
        protected void addFilter(
            @NotNull final MethodExitRequest request, final ThreadReference thread) {
          request.addThreadFilter(thread);
        }
      }.applyFilter(eventRequestManager.methodExitRequests(), newFilterThread);
    }
  }