java对序列化serialVersionUID的处理分析 - JAVA

nProxy方法，suid = Long.valueOf(model.getSerialVersionUID());去除序列化后的model对象的serialVersionUID，if (serializable == localDesc.serializable &&!cl.isArray() &&suid.longValue() != localDesc.getSerialVersionUID()) 然后判断是否跟本地的class对象是否都是继承serializable 接口，并且cl不是数组，且serialVersionUID要跟当前序列化的class对象的serialVersionUID一致。

[java]
/**
* Initializes class descriptor representing a non-proxy class.
*/
void initNonProxy(ObjectStreamClass model,
Class cl,
ClassNotFoundException resolveEx,
ObjectStreamClass superDesc)
throws InvalidClassException
{
this.cl = cl;
this.resolveEx = resolveEx;
this.superDesc = superDesc;
name = model.name;
suid = Long.valueOf(model.getSerialVersionUID());
isProxy = false;
isEnum = model.isEnum;
serializable = model.serializable;
externalizable = model.externalizable;
hasBlockExternalData = model.hasBlockExternalData;
hasWriteObjectData = model.hasWriteObjectData;
fields = model.fields;
primDataSize = model.primDataSize;
numObjFields = model.numObjFields;

if (cl != null) {
localDesc = lookup(cl, true);
if (localDesc.isProxy) {
throw new InvalidClassException(
"cannot bind non-proxy descriptor to a proxy class");
}
if (isEnum != localDesc.isEnum) {
throw new InvalidClassException(isEnum
"cannot bind enum descriptor to a non-enum class" :
"cannot bind non-enum descriptor to an enum class");
}

if (serializable == localDesc.serializable &&
!cl.isArray() &&
suid.longValue() != localDesc.getSerialVersionUID())
{

throw new InvalidClassException(localDesc.name,
"local class incompatible: " +
"stream classdesc serialVersionUID = " + suid +
", local class serialVersionUID = " +
localDesc.getSerialVersionUID());
}

if (!classNamesEqual(name, localDesc.name)) {
throw new InvalidClassException(localDesc.name,
"local class name incompatible with stream class " +
"name \"" + name + "\"");
}

if (!isEnum) {
if ((serializable == localDesc.serializable) &&
(externalizable != localDesc.externalizable))
{
throw new InvalidClassException(localDesc.name,
"Serializable incompatible with Externalizable");
}

if ((serializable != localDesc.serializable) ||
(externalizable != localDesc.externalizable) ||
!(serializable || externalizable))
{
deserializeEx = new InvalidClassException(localDesc.name,
"class invalid for deserialization");
}
}

cons = localDesc.cons;
writeObjectMethod = localDesc.writeObjectMethod;
readObjectMethod = localDesc.readObjectMethod;
readObjectNoDataMethod = localDesc.readObjectNoDataMethod;
writeReplaceMethod = localDesc.writeReplaceMethod;
readResolveMethod = localDesc.readResolveMethod;
if (deserializeEx == null) {
deserializeEx = localDesc.deserializeEx;
}
}
fieldRefl = getRefl

java对序列化serialVersionUID的处理分析(二)