[Bug] Replace Long.valueOf() with Long.parseLong() to avoid unnecessary boxing

[cxhello]

Background

Follow-up to #14469 (SpotBugs check enforcement). This addresses the DM_BOXED_PRIMITIVE_FOR_PARSING pattern — using Long.valueOf(s) where Long.parseLong(s) should be used, causing unnecessary boxing/unboxing.

Affected locations (4 occurrences)

File	Line	Current code
client/.../CacheData.java	L70	Long.valueOf(notifyTimeouts)
plugin/control/.../RateCounter.java	L87	Long.valueOf(Long.valueOf(substring) / 60 * 60 + "000")
plugin/control/.../RateCounter.java	L99	Long.valueOf(substring + "000")
plugin/control/.../RateCounter.java	L111	Long.valueOf(Long.valueOf(substring) / (60 * 60) * (60 * 60) + "000")

Fix

Replace all Long.valueOf() with Long.parseLong(). Pure API substitution, semantically equivalent.

After fixing, the DM_BOXED_PRIMITIVE_FOR_PARSING exclusion in style/spotbugs-exclude.xml should be removed so that future occurrences are caught by CI.

[chunhai1127]

@i will solve it@

[KomachiSion]

Fixed by #14475