Signed-off-by: StevenRS11 <stevenrs11@aol.com>

StevenDimDoors/mod_pocketDim/ObjectSaveInputStream.java

@@ -0,0 +1,43 @@
+package StevenDimDoors.mod_pocketDim;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InvalidClassException;
+import java.io.ObjectInputStream;
+import java.io.ObjectStreamClass;
+import java.util.logging.Logger;
+
+
+public class ObjectSaveInputStream extends ObjectInputStream {
+
+  //  private static Logger logger = LoggerFactory.getLogger(ObjectSaveInputStream.class);
+
+    public ObjectSaveInputStream(InputStream in) throws IOException {
+        super(in);
+    }
+
+    @Override
+    protected ObjectStreamClass readClassDescriptor() throws IOException, ClassNotFoundException {
+        ObjectStreamClass resultClassDescriptor = super.readClassDescriptor(); // initially streams descriptor
+        Class localClass; // the class in the local JVM that this descriptor represents.
+        try {
+            localClass = Class.forName(resultClassDescriptor.getName()); 
+        } catch (ClassNotFoundException e) {
+         //   logger.error("No local class for " + resultClassDescriptor.getName(), e);
+            return resultClassDescriptor;
+        }
+        ObjectStreamClass localClassDescriptor = ObjectStreamClass.lookup(localClass);
+        if (localClassDescriptor != null) { // only if class implements serializable
+            final long localSUID = localClassDescriptor.getSerialVersionUID();
+            final long streamSUID = resultClassDescriptor.getSerialVersionUID();
+            if (streamSUID != localSUID) { // check for serialVersionUID mismatch.
+                final StringBuffer s = new StringBuffer("Overriding serialized class version mismatch: ");
+                s.append("local serialVersionUID = ").append(localSUID);
+                s.append(" stream serialVersionUID = ").append(streamSUID);
+                Exception e = new InvalidClassException(s.toString());
+           //     logger.error("Potentially Fatal Deserialization Operation.", e);
+                resultClassDescriptor = localClassDescriptor; // Use local class descriptor for deserialization
+            }
+        }
+        return resultClassDescriptor;
+    }
+}