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Java PrivateKey DerInputStream.getLength(): lengthTag=109 too big

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This is my first post and I'm glad to be here. I am having a problem with my code. I am trying to extract a key from a created file, and then turn this into a private key which then is used to encrpt a big integer. The problem I am getting is when the Private Key is created I am getting the following error.

I have looked everywhere I can't seem to find an answer on why this doesn't work. Here is an example of a key that is generated in a separate file, provided to me.

Finally here is the code where I am getting the key from the file and then trying to construct a private key:

From this private Key I am trying to get the modulus and the private exponent.
Thank you very much for taking the time to read this.
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