Rework retry logic to remove potential resource leak fixes openrewrit…

…e#1491 (openrewrite#1492)

Properties in urls were not being evaluated when importing boms. fixes …

…openrewrite#1399

Parsing listener

Skip UTF-8 BOM characters in XMLLexer.

Leave leftpadded AST unchanged if visitor does not change it

Polish type generation of JavaSourceSet in JavaParsers.

Adds `JavaSourceSet` marker with the name of the scope and an empty class path.
Renamed `SKIP_SOURCE_SET_MARKER` to SKIP_SOURCE_SET_TYPE_GENERATION`.
fixes openrewrite#1360

Peer review remediation: only set `sourceSetProvenance` when it is null in `getSourceSet`.

Fix openrewrite#1359 JavaVisitor.visitVariableDeclarations() visits t…

…he type expression twice, potentially causing bugs for type visitors

Update ChangeParentPom to prevent version downgrades when allowVersio…

…nDowngrades is false. Fix openrewrite#1317 (openrewrite#1320)