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There is a newer version: 0.3.1

package jnr.ffi.provider.jffi;

/**
 *
 */
public final class NullObjectParameterStrategy extends ParameterStrategy {
    public static final ParameterStrategy NULL = new NullObjectParameterStrategy();

    public NullObjectParameterStrategy() {
        super(DIRECT);
    }

    @Override
    public long address(Object parameter) {
        return 0;
    }

    @Override
    public Object object(Object parameter) {
        throw new NullPointerException("null reference");
    }

    @Override
    public int offset(Object parameter) {
        throw new NullPointerException("null reference");
    }

    @Override
    public int length(Object parameter) {
        throw new NullPointerException("null reference");
    }
}