NIFI-12456 Enabled JsonTreeReader and JsonPathReader to parse JSON leniently.

[dan-s1]

Summary

NIFI-12456
The changes in this PR now allow for JsonTreeReader and JsonPathReader to parse incoming JSON leniently which includes allowing

• Java comments (/**/ and //)
• Yaml comments (start of line begins with #)
• leading plus sign in numbers (e.g. +123)
• leading zeros in numbers (e.g. 0001)
• "missing" decimal numbers to end with a decimal point (e.g. 123.)
• "missing value" in an array (i.e. sequence of two commas, without value in-between e.g. ["A",,"C"]),
• trailing comma in an array or member in an object
• use of single quotes for quoting strings (i.e. use of an apostrophe)
• use of unquoted field names

Tracking

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Issue Tracking

• Apache NiFi Jira issue created

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Build

• Build completed using ./mvnw clean install -P contrib-check
  • JDK 21
  • JDK 25

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
• New dependencies are documented in applicable LICENSE and NOTICE files

Documentation

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