CacheBuilder.newBuilder().concurrencyLevel(1).maximumSize(10).build(loader);
    CacheTesting.warmUp(cache, 0, 10);
    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);

    // re-order
    getAll(cache, asList(0, 1, 2));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0, 1, 2);

    // evict 3, 4, 5

     */
    @Test
    public void testIsNumver() throws Exception {
        assertFalse(StringUtil.isNumber(null));
        assertTrue(StringUtil.isNumber("0123456789"));
        assertFalse(StringUtil.isNumber("aaaBBBccc"));
        assertFalse(StringUtil.isNumber("０１２３４５６７８９"));
        assertFalse(StringUtil.isNumber(""));
        assertFalse(StringUtil.isNumber("01234abcdef"));
        assertFalse(StringUtil.isNumber("abcdef01234"));

	// Output:
	// -gopher!
	// "go-gopher!"
	// go-gopher
	// go-gopher!
}

func ExampleTrimLeft() {
	fmt.Print(string(bytes.TrimLeft([]byte("453gopher8257"), "0123456789")))
	// Output:
	// gopher8257
}

func ExampleTrimLeftFunc() {
	fmt.Println(string(bytes.TrimLeftFunc([]byte("go-gopher"), unicode.IsLetter)))

    doTestAllMatches(forPredicate(Predicates.equalTo('c')), "ccc");
    doTestAllMatches(CharMatcher.digit(), "0123456789\u0ED0\u1B59");
    doTestAllMatches(CharMatcher.javaDigit(), "0123456789");
    doTestAllMatches(CharMatcher.digit().and(CharMatcher.ascii()), "0123456789");
    doTestAllMatches(CharMatcher.singleWidth(), "\t0123ABCdef~\u00A0\u2111");
  }

    doTestAllMatches(forPredicate(Predicates.equalTo('c')), "ccc");
    doTestAllMatches(CharMatcher.digit(), "0123456789\u0ED0\u1B59");
    doTestAllMatches(CharMatcher.javaDigit(), "0123456789");
    doTestAllMatches(CharMatcher.digit().and(CharMatcher.ascii()), "0123456789");
    doTestAllMatches(CharMatcher.singleWidth(), "\t0123ABCdef~\u00A0\u2111");
  }

		{"032033\x00 ", 032033, true},
		{"320330\x00 ", 0320330, true},
		{"0000660\x00 ", 0660, true},
		{"\x00 0000660\x00 ", 0660, true},
		{"0123456789abcdef", 0, false},
		{"0123456789\x00abcdef", 0, false},
		{"01234567\x0089abcdef", 342391, true},
		{"0123\x7e\x5f\x264123", 0, false},
	}

	for _, v := range vectors {
		var p parser
		got := p.parseNumeric([]byte(v.in))
		ok := (p.err == nil)

func (d *Decoder) any() (interface{}, ValueType, error) {
	c := d.cur()

	switch c {
	case '"':
		i, err := d.string()
		return i, String, err
	case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
		i, err := d.number()
		return i, Number, err
	case '-':
		if c = d.next(); c < '0' || c > '9' {
			return nil, Unknown, d.mkError(ErrSyntax, "in negative numeric literal")
		}

	PSTW R24, $0, 45(R13)                   // 06000000930d002d
	PSTXSD V1, $1, 12345678(R2)             // 041000bcb822614e
	PSTXSSP V1, $1, 1234567890(R0)          // 04104996bc2002d2
	PSTXSSP V1, $1, 1234567890(R1)          // 04104996bc2102d2
	PSTXSSP V1, $0, 1234567890(R3)          // 04004996bc2302d2
	PSTXV VS6, $1, 1234567890(R5)           // 04104996d8c502d2
	PSTXVP VS2, $1, 12345678(R2)            // 041000bcf842614e

		// if there is data following that NUL character.
		// This is reasonable as GNU long names are C-strings.
		file: "testdata/gnu-long-nul.tar",
		headers: []*Header{{
			Name:     "0123456789",
			Mode:     0644,
			Uid:      1000,
			Gid:      1000,
			ModTime:  time.Unix(1486082191, 0),
			Typeflag: '0',
			Uname:    "rawr",
			Gname:    "dsnet",
			Format:   FormatGNU,
		}},

        assertEquals("@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal(""));
        assertEquals("123456789@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal("123456789"));
        assertEquals("1234567890@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal("1234567890"));
        assertEquals("1234567890@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal("12345678901"));
    }