创建.ser文件后，是否可以编辑.ser java文件中使用的类？

Question

I am trying to load a .ser file of a class I made a while back.

But I'm getting ClassNotFoundException .

I'm wondering, is it because I made changes to the class used in those files? Because the class name is the same, the only changes are some new methods.

If this is the case, is there a way I load .ser files that had their classes changed after creation?

java.lang.ClassNotFoundException: ebay.ItemEditObject
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at java.io.ObjectInputStream.resolveClass(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at ebay.EbayMaster.getObjFromFile(EbayMaster.java:750)
at ebay.EbayMaster.createItemsForUpload(EbayMaster.java:340)
at ebay.EbayMaster.ebayRunner(EbayMaster.java:129)
at ebay.EbayMaster.main(EbayMaster.java:92)

Answer 1

I'm wondering, is it because I made changes to the class used in those files?

No.

Because the class name is the same, the only changes are some new methods.

That could cause an InvalidClassException . Not a ClassNotFoundException .

But you aren't getting either of these. You're getting FileNotFoundException. The file wasn't found. Look again.