NIFI-16147 Removed unnecessary fully qualified names and implemented PMD rule UnnecessaryFullyQualifiedName

[dan-s1]

Summary

NIFI-16147

This PR first addressed the use of fully qualified names discovered by Intellij and those uncovered by the PMD rule UnnecessaryFullyQualifiedName. The UnnecessaryFullyQualifiedName aims to address four categories:

• Already imported types: Using a fully qualified class name when an explicit import statement for that class already exists in the file.
• Same-package classes: Referencing a class with its full package prefix when the referencing class resides in the exact same package.
• Implicitly imported scope: Using full package paths for classes in java.lang or types already in scope via wildcard * imports.
• Enclosing and local scopes: Qualifying elements (such as static fields, methods, or inner classes) that are already directly in scope because they are declared in an enclosing type or current context.

This PR as a result of fixing the aforementioned cases also fixed the seemingly in-congruent use of importing a class while also having static imports of variables in that class.

1. e.g. importing AzureStorageUtils and statically importing some of its members in classes
   AbstractAzureDataLakeStorageProcessor, AzureDataLakeStorageFileResourceService, AzureStorageCredentialsControllerService_v12, FetchAzureBlobStorage_v12, FetchAzureDataLakeStorage, ListAzureBlobStorage_v12, ListAzureDataLakeStorage and PutAzureBlobStorage_v12
2. Importing Assertions, Mockito or ArgumentMatchers and statically importing some of their methods.

In the case of Assertions, Mockito or ArgumentMatchers, this PR made only static imports of the methods in these classes while for AzureStorageUtils it dropped all the static imports.

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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

• Documentation formatting appears as expected in rendered files

[exceptionfactory]

Thanks @dan-s1, this covers a lot of files, but provides a helpful consistency across the project. +1 merging