SAM Conversions
---------------

When you use Java APIs from Kotlin you can operate on Java interfaces as if they were Kotlin
lambdas. The [feature][java_sams] is available for interfaces that define a Single Abstract Method
(SAM).

But when you use Kotlin APIs from Kotlin there’s no automatic conversion. Code that used SAM lambdas

// Convert between beans and maps
Map<String, Object> map = BeanUtil.copyBeanToNewMap(bean);
MyBean newBean = BeanUtil.copyMapToNewBean(map, MyBean.class);
```

### Type Conversion
```java
import org.codelibs.core.convert.*;

// Safe type conversions with null handling
Integer value = IntegerConversionUtil.toInteger("123");        // Returns 123
Integer nullValue = IntegerConversionUtil.toInteger(null);     // Returns null

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

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

/**
 * Utility class for conversions to {@link Long}.
 *
 * @author higa
 */
public abstract class LongConversionUtil {

    /**
     * Do not instantiate.
     */
    protected LongConversionUtil() {
    }

    /**

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

/**
 * Utility class for conversions related to {@link Boolean}.
 *
 * @author higa
 */
public abstract class BooleanConversionUtil {

    /**
     * Do not instantiate.
     */
    protected BooleanConversionUtil() {
    }

    /**

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

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

/**
 * Utility class for conversions related to {@link Number}.
 *
 * @author higa
 */
public abstract class NumberConversionUtil {

    /**
     * Do not instantiate.
     */
    protected NumberConversionUtil() {
    }

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.math.BigInteger;

/**
 * Utility class for conversions related to {@link BigInteger}.
 *
 * @author higa
 */
public abstract class BigIntegerConversionUtil {

    /**
     * Do not instantiate.
     */
    protected BigIntegerConversionUtil() {
    }

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

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

/**
 * Utility class for conversions related to {@link Float}.
 *
 * @author higa
 */
public abstract class FloatConversionUtil {

    /**
     * Do not instantiate.
     */
    protected FloatConversionUtil() {
    }

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import static org.codelibs.core.misc.AssertionUtil.assertArgument;

/**
 * Utility class for conversions related to byte arrays.
 *
 * @author higa
 */
public abstract class BinaryConversionUtil {

    /**
     * Do not instantiate.
     */
    protected BinaryConversionUtil() {
    }

    /**

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

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

/**
 * Utility class for conversions related to {@link Integer}.
 *
 * @author higa
 */
public abstract class IntegerConversionUtil {

    /**
     * Do not instantiate.
     */
    protected IntegerConversionUtil() {
    }

    /**

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

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

/**
 * Utility class for conversions related to {@link Double}.
 *
 * @author higa
 */
public abstract class DoubleConversionUtil {

    /**
     * Do not instantiate.
     */
    protected DoubleConversionUtil() {
    }

    /**