Use static final Pattern to avoid regexp compilation each time replaceAll is called

[turbanoff]

Impact

• Bug fix (non-breaking change which fixes expected existing functionality)
• Enhancement/New feature (adds functionality without impacting existing logic)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

Improve performance of liquibase.Liquibase#getDatabaseChangeLog() a bit. I've noticed that pattern compilation takes some time in my profile.

Additional Context

String.replaceAll implementation:
https://github.com/openjdk/jdk/blob/fd8adf308357355bd33916ad80e2328c35434e5a/src/java.base/share/classes/java/lang/String.java#L3110

    public String replaceAll(String regex, String replacement) {
        return Pattern.compile(regex).matcher(this).replaceAll(replacement);
    }

[MalloD12]

Approved.

LGTM.

[filipelautert]

Thanks for the enhancement @turbanoff !