Improve malformed file handling for OpenSSH Private Keys #898
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This pull request improves malformed file handling for OpenSSH Private Keys, resolving a potential
NullPointerException
described in issue #897.The improvement adds standard
null
checking while reading lines from the inputBufferedReader
, and also throws anIOException
with a message indicating the absence of the requiredEND OPENSSH PRIVATE KEY
footer.Changes also include new test cases for invalid header and footer lines.