Create vuln-21.java

[nnayar-r2c]

No description provided.

[semgrep-app]

Semgrep found 12 java-jwt-hardcoded-secret findings:

• vuln-main-4.java: L46
• vuln-21.java: L46
• vuln-main.java: L15
• vuln-main-3.java: L15
• vuln-main-7.java: L46
• vuln-main-2.java: L15

A hard-coded credential was detected. It is not recommended to store credentials in source-code, as this risks secrets being leaked and used by either an internal or external malicious adversary. It is recommended to use environment variables to securely provide credentials or retrieve credentials from a secure vault or HSM (Hardware Security Module).

_{Ignore this finding from java-jwt-hardcoded-secret.}