[Bug]: MetricsProperties.setDomainTag() accepts empty string

[Splatcrafter]

AI REVIEWED

Module: spring-boot-starter
File: spring/AetherDataFixersProperties.java (~line 524-525)
Severity: Low

Summary

setDomainTag() validates non-null but not non-empty. An empty string "" would produce malformed metric tags.

Suggested Fix

public void setDomainTag(@NotNull final String domainTag) {
    Preconditions.checkArgument(!domainTag.isEmpty(), "domainTag must not be empty");
    this.domainTag = domainTag;
}