this.carLicense = value;
    }

    public String getCity() {
        checkSpecifiedProperty("city");
        return convertEmptyToNull(city);
    }

    public void setCity(String value) {
        registerModifiedProperty("city");
        this.city = value;
    }

    public String getDepartmentNumber() {
        checkSpecifiedProperty("departmentNumber");

                curResp.setExpiration(System.currentTimeMillis() + timeout);
            }
            else {
                curResp.setExpiration(null);
            }

            curResp.setMid(k);
            this.response_map.put(k, curResp);

            Request next = curReq.getNext();
            if ( next != null ) {
                curReq = next;
                curResp = next.getResponse();

        // ignore
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlock#setUid(int)
     */
    @Override
    public void setUid ( int uid ) {
        // ignore
    }


    /**
     * @return the flags
     */
    public final int getFlags () {
        return this.flags;
    }

  private static class Holder<T> {
    List<T>[] matrix;

    void setList(List<T> list) {}
  }

  public void testWildcardCaptured_methodParameter_upperBound() throws Exception {
    TypeToken<Holder<?>> type = new TypeToken<Holder<?>>() {};
    ImmutableList<Parameter> parameters =
        type.method(Holder.class.getDeclaredMethod("setList", List.class)).getParameters();
    assertThat(parameters).hasSize(1);

		}
	}

	if c.configDumps == nil {
		c.configDumps = map[string][]byte{}
	}

	var out bytes.Buffer
	rootCmd := Cmd(ctx)
	rootCmd.SetArgs(c.args)

	rootCmd.SetOut(&out)
	rootCmd.SetErr(&out)

	if c.namespace != "" {
		describeNamespace = c.namespace
	}

	fErr := rootCmd.Execute()
	output := out.String()

Mais cela rend la programmation asynchrone bien plus simple.

Cette même syntaxe (ou presque) était aussi incluse dans les versions modernes de Javascript (dans les versions navigateur et NodeJS).

Mais avant ça, gérer du code asynchrone était bien plus complexe et difficile.

  private static class Holder<T> {
    List<T>[] matrix;

    void setList(List<T> list) {}
  }

  public void testWildcardCaptured_methodParameter_upperBound() throws Exception {
    TypeToken<Holder<?>> type = new TypeToken<Holder<?>>() {};
    ImmutableList<Parameter> parameters =
        type.method(Holder.class.getDeclaredMethod("setList", List.class)).getParameters();
    assertThat(parameters).hasSize(1);

			})
			validateCmd := NewValidateCommand(ctx)
			validateCmd.SilenceUsage = true
			validateCmd.SetArgs(c.args)

			// capture output to keep test logs clean
			var out bytes.Buffer
			validateCmd.SetOut(&out)
			validateCmd.SetErr(&out)

			err := validateCmd.Execute()
			if (err != nil) != c.wantError {
				t.Errorf("unexpected validate return status: got %v want %v: \nerr=%v",
					err != nil, c.wantError, err)

        setupEpg(_epgMap, et -> ((User) et).getCarLicense(), (et, vl) -> ((User) et).setCarLicense(DfTypeUtil.toString(vl)), "carLicense");
        setupEpg(_epgMap, et -> ((User) et).getCity(), (et, vl) -> ((User) et).setCity(DfTypeUtil.toString(vl)), "city");
        setupEpg(_epgMap, et -> ((User) et).getDepartmentNumber(), (et, vl) -> ((User) et).setDepartmentNumber(DfTypeUtil.toString(vl)),
                "departmentNumber");

            stdout.setLogLevel(LocationAwareLogger.INFO_INT);
            stderr.setLogLevel(LocationAwareLogger.INFO_INT);
            System.setOut(new LoggingOutputStream(s -> stdout.info("[stdout] " + s)).printStream());
            System.setErr(new LoggingOutputStream(s -> stderr.warn("[stderr] " + s)).printStream());