Avoid opening jar files before checking in pom is available

[anderruiz]

What Does This Do

Before the PR all jar files were opened to calculate the jar file SHA1 signature, even before checking if maven information was available (and in that case the signature was avoided)

[pr-commenter]

Benchmarks

Parameters

	Baseline	Candidate
commit	1.15.0-SNAPSHOT~ebdc616cd3	1.15.0-SNAPSHOT~ed36dcf5ca
config	baseline	candidate

See matching parameters

	Baseline	Candidate
module	Agent	Agent
parent	None	None

Summary

Found 0 performance improvements and 1 performance regressions! Performance is the same for 21 cases.

scenario	Δ mean execution_time
scenario:Startup-waf-Remote Config	worse [+7.394µs; +231.674µs] or [+1.042%; +32.633%]

See unchanged results

scenario	Δ mean execution_time
scenario:Startup-base-Agent	same
scenario:Startup-base-Agent.start	same
scenario:Startup-base-BytebuddyAgent	same
scenario:Startup-base-GlobalTracer	same
scenario:Startup-base-AppSec	same
scenario:Startup-base-Remote Config	same
scenario:Startup-base-Telemetry	same
scenario:Startup-iast-Agent	same
scenario:Startup-iast-Agent.start	same
scenario:Startup-iast-BytebuddyAgent	same
scenario:Startup-iast-GlobalTracer	same
scenario:Startup-iast-AppSec	same
scenario:Startup-iast-IAST	same
scenario:Startup-iast-Remote Config	same
scenario:Startup-iast-Telemetry	same
scenario:Startup-waf-Agent	same
scenario:Startup-waf-Agent.start	same
scenario:Startup-waf-BytebuddyAgent	same
scenario:Startup-waf-GlobalTracer	same
scenario:Startup-waf-AppSec	same
scenario:Startup-waf-Telemetry	unsure [-0.395ms; -0.051ms] or [-6.639%; -0.854%]