Bug 17256 Exception due to bug 17208
bundles/org.eclipse.core.databinding/src/org/eclipse/core/databinding/UpdateStrategy.java
converterMap
					.put(
							new Pair("java.lang.String", LONG_TYPE), "org.eclipse.core.databinding.conversion.ConvertString2LongPrimitive"); 
			converterMap
					.put(
							new Pair(LONG_TYPE, "java.lang.Long"), new IdentityConverter(Long.TYPE, Long.class)); 
			converterMap
					.put(
							new Pair(LONG_TYPE, "java.lang.String"), new ToStringConverter(Long.TYPE)); 
			converterMap
					.put(
							new Pair(LONG_TYPE, "java.lang.Object"), new IdentityConverter(Long.TYPE, Object.class)); 		
		}
		return converterMap;
	}
	private static String getKeyForClass(Object originalValue, Class filteredValue) {
		if (originalValue instanceof Class) {
			Class originalClass = (Class) originalValue;
			if (originalClass.equals(Integer.TYPE)) {
				return INTEGER_TYPE;
			} else if (originalClass.equals(Byte.TYPE)) {
				return BYTE_TYPE;
			} else if (originalClass.equals(Boolean.TYPE)) {
				return BOOLEAN_TYPE;
			} else if (originalClass.equals(Double.TYPE)) {
				return DOUBLE_TYPE;
			} else if (originalClass.equals(Float.TYPE)) {
				return FLOAT_TYPE;
			} else if (originalClass.equals(Long.TYPE)) {
				return LONG_TYPE;