Example usage for java.lang ClassCastException ClassCastException

Introduction

In this page you can find the example usage for java.lang ClassCastException ClassCastException.

Prototype

public ClassCastException(String s)

Source Link

Document

Constructs a ClassCastException with the specified detail message.

Usage

From source file:com.ericbarnhill.arrayMath.MathArrayFloat1D.java

protected MathArrayFloat1D divide(Complex g) {
    throw new ClassCastException("Cannot divide Complex number to double array");
}

From source file:jp.terasoluna.fw.util.ConvertUtil.java

/**
 * <code>T</code>???//from  w w w  .j  a  v  a2  s. c o m
 * <p>
 * <ul>
 *  <li><code>allowsNull</code>?<code>false</code>??
 *        <code>obj</code>?<code>null</code> - 
 *  <li><code>allowsNull</code>?<code>true</code>??
 *        <code>obj</code>?<code>null</code> - <code>null</code>?
 *  <li><code>obj</code>?<code>clazz</code> - ??????
 *  <li><code>obj</code>?<code>clazz</code>????
 *        - <code>ConvertUtils</code>?????????
 * </ul>
 * </p>
 * 
 * @param <T> ??
 * @param obj 
 * @param clazz ??
 * @param allowsNull <code>obj</code>?<code>null</code>?
 *      ??????
 * @return ??
 * @throws IllegalArgumentException <code>clazz</code>?
 *      <code>null</code>??
 *      <code>allowsNull</code>?<code>false</code>??
 *        <code>obj</code>?<code>null</code>??
 *      ?????
 */
@SuppressWarnings("unchecked")
public static <T> T convert(Object obj, Class<T> clazz, boolean allowsNull) throws IllegalArgumentException {

    if (clazz == null) {
        throw new IllegalArgumentException("Argument 'clazz' (" + Object.class.getName() + ") is null");
    }

    if (obj == null) {
        if (!allowsNull) {
            String message = "Unable to cast 'null' to '" + clazz.getName() + "'";
            throw new IllegalArgumentException(message, new ClassCastException(message));
        }
        return null;
    }

    if (clazz.isAssignableFrom(obj.getClass())) {
        return (T) obj;
    }

    Object result = null;
    try {
        result = ConvertUtils.convert(obj.toString(), clazz);
    } catch (ConversionException e) {
        throw new IllegalArgumentException(e);
    }
    return (T) result;
}

From source file:com.ericbarnhill.arrayMath.MathArrayFloat2D.java

protected MathArrayFloat2D divide(Complex g) {
    throw new ClassCastException("Cannot divide Complex number to double array");
}

From source file:com.ericbarnhill.arrayMath.MathArrayFloat3D.java

protected MathArrayFloat3D divide(Complex g) {
    throw new ClassCastException("Cannot divide Complex number to double array");
}

From source file:com.codelanx.codelanxlib.config.Config.java

/**
 * Attempts to return the {@link Config} value as a casted type. If the
 * value cannot be casted it will attempt to return the default value. If
 * the default value is inappropriate for the class, the method will
 * throw a {@link ClassCastException}. This exception is also throwing if
 * the type used for the members contained within the collection are
 * incorrect//  w  ww  .  j  av a 2 s  . c  om
 * 
 * @since 0.1.0
 * @version 0.1.0
 * 
 * @param <K> The type of the keys for this map
 * @param <V> The type of the values for this map
 * @param <M> The type of the map
 * @param map The class object of the map type to use
 * @param key The class object of the key types
 * @param value The class object of the value types
 * @return A casted value, or {@code null} if unable to cast. If the passed
 *         class parameter is of a primitive type or autoboxed primitive,
 *         then a casted value of -1 is returned, or {@code false} for
 *         booleans. If the passed class parameter is for {@link String},
 *         then {@link Object#toString()} is called on the value instead
 */
@SuppressWarnings("rawtypes")
default public <K, V, M extends Map<K, V>> M as(Class<? extends Map> map, Class<K> key, Class<V> value) {
    Map<?, ?> m = this.as(map);
    for (Map.Entry<?, ?> ent : m.entrySet()) {
        if (!key.isInstance(ent.getKey()) || !value.isInstance(ent.getValue())) {
            throw new ClassCastException("Inappropriate generic types for map");
        }
    }
    return (M) m;
}

From source file:com.buffalokiwi.aerodrome.jet.Utils.java

/**
 * Convert a json array to a list of booleans.
 * if arr is null, then an empty List<Boolean> instance is returned.
 * /*from   w w w .java 2 s . c om*/
 * This is more safe than JsonArray.getValuesAs() as this method
 * has built-in type checking and will throw a ClassCastException if 
 * the type is incorrect or null.
 * 
 * @param arr array
 * @return a list
 * @throws ClassCastException if any element in arr is not an boolean
 */
public static List<Boolean> jsonArrayToBooleanList(final JsonArray arr) {
    final List<Boolean> out = new ArrayList<>();
    if (arr == null)
        return out;

    for (int i = 0; i < arr.size(); i++) {
        final Boolean b = arr.getBoolean(i);
        if (b == null) {
            throw new ClassCastException(
                    "Element at position " + String.valueOf(i) + " is null - Boolean required");
        }

        out.add(b);

        out.add(arr.getBoolean(i));
    }

    return out;
}

From source file:com.scooter1556.sms.android.fragment.AudioDirectoryFragment.java

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    try {//w w  w  . j  a v  a2s  .com
        mediaElementListener = (MediaElementFragment.MediaElementListener) context;
    } catch (ClassCastException e) {
        throw new ClassCastException(context.toString() + " must implement MediaElementListener");
    }
}

From source file:ezbake.data.elastic.thrift.TermsStatsValue.java

@Override
protected void checkType(_Fields setField, Object value) throws ClassCastException {
    switch (setField) {
    case VALUE_FIELD:
        if (value instanceof String) {
            break;
        }/*w  ww . ja  v  a2s. c  o m*/
        throw new ClassCastException("Was expecting value of type String for field 'valueField', but got "
                + value.getClass().getSimpleName());
    case VALUE_SCRIPT:
        if (value instanceof ValueScript) {
            break;
        }
        throw new ClassCastException("Was expecting value of type ValueScript for field 'valueScript', but got "
                + value.getClass().getSimpleName());
    default:
        throw new IllegalArgumentException("Unknown field id " + setField);
    }
}

From source file:ezbake.data.elastic.thrift.GeoSortValue.java

@Override
protected void checkType(_Fields setField, Object value) throws ClassCastException {
    switch (setField) {
    case GEO_HASH:
        if (value instanceof String) {
            break;
        }/*ww w . j a  v  a 2 s .  com*/
        throw new ClassCastException("Was expecting value of type String for field 'geoHash', but got "
                + value.getClass().getSimpleName());
    case COORDINATE:
        if (value instanceof ezbake.base.thrift.Coordinate) {
            break;
        }
        throw new ClassCastException(
                "Was expecting value of type ezbake.base.thrift.Coordinate for field 'coordinate', but got "
                        + value.getClass().getSimpleName());
    default:
        throw new IllegalArgumentException("Unknown field id " + setField);
    }
}

From source file:ezbake.data.elastic.thrift.MissingSort.java

@Override
protected void checkType(_Fields setField, Object value) throws ClassCastException {
    switch (setField) {
    case BASIC://from w ww . ja  v  a  2  s.c  o m
        if (value instanceof MissingOrder) {
            break;
        }
        throw new ClassCastException("Was expecting value of type MissingOrder for field 'basic', but got "
                + value.getClass().getSimpleName());
    case CUSTOM:
        if (value instanceof String) {
            break;
        }
        throw new ClassCastException("Was expecting value of type String for field 'custom', but got "
                + value.getClass().getSimpleName());
    default:
        throw new IllegalArgumentException("Unknown field id " + setField);
    }
}