suffixtree | Java implementation of a Generalized Suffix Tree | Dataset library

I am trying to update the end variable in my SuffixNode Class, automatically. What I mean is I have created a SuffixNode in the following code, and I assigned the endIndex.end as the SuffixNode's end value. Then I update the endIndex.end to 2. However, when I print the (self.root.end) out after I updated the endIndex.end value, the end value store in SuffixNode is still showing 1 rather than show the updated 2.

Can anyone provide me with a suggestion on how should I modify the code, so that when I update the endIndex.end, the end value store in the SuffixNode will also update automatically.

Thank you

Below is the code

class EndIndex: def init(self, endIndexValue): self.end = endIndexValue