Error4 reports
Fix IllegalArgumentException
in Nexus Repository
✅ Solution
IllegalArgumentException in nexus-repository usually arises from invalid characters or formats in artifact names or database configurations that violate underlying constraints. Resolve this by sanitizing artifact names to be URL-safe and database-compatible, which might involve encoding or removing special characters. Ensure database connection strings adhere strictly to the expected format for your configured database type (e.g., PostgreSQL), paying close attention to parameter names and values.
Related Issues
Real GitHub issues where developers encountered this error:
Unsupported class file major version 69May 19, 2026
Nexus Repository Maven group fails when serving checksum subordinates for merged archetype catalogsMar 23, 2026
Upgrade from Nexus 3.39 to 3.70.4 Failing.Feb 16, 2026
Artifacts with "Non url-safe name" created by Nexus when using Github dependabotDec 4, 2025
Timeline
First reported:Mar 10, 2025
Last reported:May 19, 2026
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