Fix ClassCastException in RAR schema validation for integer keywords - #8324

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Cannot invoke "javax.sql.DataSource.getConnection()" because "this.sessionDataSource" is null

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v3, actions/checkout@v4, actions/setup-java@v2, codecov/codecov-action@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

setup-java v2 is deprecated and will no longer receive updates. Please migrate to actions/setup-java@v5.