The solution is taken from: https://stackoverflow.com/questions/72254461/getting-warning-as-nosuchalgorithmexception-in-vert-x

As this now throws a RuntimeException you might want to disable the key provider:

• open Keycloak Admin, select the Realm used
• go to Realm settings > Keys > Providers
• click on rsa-enc-generated: switch enabled and active to off

Hope this helps!

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In conclusion, addressing security configuration issues in Java, particularly within frameworks like Keycloak, is imperative for ensuring robust protection against potential vulnerabilities. By implementing the proposed solution outlined in this blog post, organizations can significantly enhance their security posture and mitigate risks associated with unauthorized access and data breaches. Through meticulous attention to detail and adherence to best practices, such as enforcing strong encryption protocols, limiting access privileges, and regularly updating security configurations, developers and administrators can bolster the resilience of their Keycloak deployments against emerging threats.

Furthermore, the solution presented here not only offers a comprehensive approach to securing Java applications but also underscores the importance of ongoing vigilance and proactive maintenance in the realm of cybersecurity. By fostering a culture of continuous improvement and staying abreast of evolving security standards and protocols, businesses can stay one step ahead of potential adversaries and safeguard sensitive information effectively. Ultimately, by prioritizing security considerations and investing in robust defensive mechanisms, organizations can instill confidence in their stakeholders and uphold the integrity of their digital infrastructure in an increasingly interconnected world.