Fix IllegalArgumentException

✅ Solution

The IllegalArgumentException in Keycloak often arises from invalid input or parameter values, such as exceeding size limits or providing incorrect data types, during operations like session management or SAML processing. To fix it, validate all input parameters before processing them, ensuring they conform to expected formats, types, and range boundaries, and implement robust error handling to gracefully manage invalid inputs and provide informative error messages. Also, update dependencies to the latest version to get the latest bug fixes.