}
            return normalize(new BigDecimal(s));
        } else {
            return normalize(new BigDecimal(o.toString()));
        }
    }

    /**
     * {@link BigDecimal}を文字列に変換します。
     *
     * @param dec
     *            変換元の{@link BigDecimal}
     * @return 変換された文字列
     */
    public static String toString(final BigDecimal dec) {
        return dec.toPlainString();
    }

        assertEquals(new BigDecimal("1"), BigDecimalConversionUtil.toBigDecimal(Byte.valueOf((byte) 1)));
        assertEquals(new BigDecimal("10"), BigDecimalConversionUtil.toBigDecimal(Short.valueOf((short) 10)));
        assertEquals(new BigDecimal("100"), BigDecimalConversionUtil.toBigDecimal(Integer.valueOf(100)));
        assertEquals(new BigDecimal("1000"), BigDecimalConversionUtil.toBigDecimal(Long.valueOf(1000L)));

    @Override
    double roundToDoubleArbitrarily(BigDecimal bigDecimal) {
      return bigDecimal.doubleValue();
    }

    @Override
    int sign(BigDecimal bigDecimal) {
      return bigDecimal.signum();
    }

    @Override
    BigDecimal toX(double d, RoundingMode mode) {
      return new BigDecimal(d);
    }

    @Override
    BigDecimal minus(BigDecimal a, BigDecimal b) {
      return a.subtract(b);
    }
  }

            displaySize = new BigDecimal(size.divide(ONE_PB_BI)).divide(BigDecimal.valueOf(1000)) + "EB";
        } else if (size.divide(ONE_PB_BI).compareTo(BigInteger.ZERO) > 0) {
            displaySize = new BigDecimal(size.divide(ONE_TB_BI)).divide(BigDecimal.valueOf(1000)) + "PB";
        } else if (size.divide(ONE_TB_BI).compareTo(BigInteger.ZERO) > 0) {

# | NUMERIC       | java.math.BigDecimal | decimal?      |
# | DECIMAL       | java.math.BigDecimal | decimal?      |
# | TINYINT       | java.lang.Integer    | int?          |
# | SMALLINT      | java.lang.Integer    | int?          |
# | INTEGER       | java.lang.Integer    | int?          |
# | BIGINT        | java.lang.Long       | long?         |
# | REAL          | java.math.BigDecimal | decimal?      |

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.text.DecimalFormatSymbols;
import java.util.Locale;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatSymbolsUtil;

/**

 * the License.
 */

/**
 * Arithmetic functions operating on primitive values and on {@link java.math.BigInteger} and {@link
 * java.math.BigDecimal} instances.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 *
 * <p>See the Guava User Guide article on <a

        typeNameResolver.resolve('File', classMetaData) == 'java.io.File'
        typeNameResolver.resolve('Closure', classMetaData) == 'groovy.lang.Closure'
        typeNameResolver.resolve('BigDecimal', classMetaData) == 'java.math.BigDecimal'
        typeNameResolver.resolve('BigInteger', classMetaData) == 'java.math.BigInteger'
    }

    def resolvesUnqualifiedNameToImportedJavaPackage() {
        when:

    } catch (NoSuchMethodException expectedBeforeJava8) {
      return Class.forName("sun.misc.FpUtils").getMethod("nextDown", double.class);
    }
  }

  @AndroidIncompatible // TODO(cpovirk): File bug for BigDecimal.doubleValue().
  public void testBigToDouble() {
    for (BigInteger b : ALL_BIGINTEGER_CANDIDATES) {
      if (b.doubleValue() != DoubleUtils.bigToDouble(b)) {
        failFormat(

        groovyImplicitImportPackages.add("java.net.");
        groovyImplicitImportPackages.add("groovy.lang.");
        groovyImplicitImportPackages.add("groovy.util.");
        groovyImplicitTypes.add("java.math.BigDecimal");
        groovyImplicitTypes.add("java.math.BigInteger");

        // check that groovy is visible.
        try {
            getClass().getClassLoader().loadClass("groovy.lang.Closure");