src/main/java/ognl/OgnlOps.java
public static BigDecimal bigDecValue(Object value)
        throws NumberFormatException
    {
        if (value == null) return BigDecimal.valueOf(0L);
        Class c = value.getClass();
        if (c == BigDecimal.class) return (BigDecimal) value;
        if (c == BigInteger.class) return new BigDecimal((BigInteger) value);
        if (c == Boolean.class) return BigDecimal.valueOf(((Boolean) value).booleanValue() ? 1 : 0);
        if (c == Character.class) return BigDecimal.valueOf(((Character) value).charValue());
        return new BigDecimal(stringValue(value, true));
    }
public static BigDecimal bigDecValue(Object value)
        throws NumberFormatException
    {
        if (value == null) return BigDecimal.valueOf(0L);
        Class c = value.getClass();
        if (c == BigDecimal.class) return (BigDecimal) value;
        if (c == BigInteger.class) return new BigDecimal((BigInteger) value);
        if (c == Boolean.class) return BigDecimal.valueOf(((Boolean) value).booleanValue() ? 1 : 0);
        if (c == Character.class) return BigDecimal.valueOf(((Character) value).charValue());
        return new BigDecimal(stringValue(value, true));
    }
Evaluates the given object as a BigDecimal.

@param value
an object to interpret as a BigDecimal
@return the BigDecimal value implied by the given object
@throws NumberFormatException
if the given object can't be understood as a BigDecimal