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Java JDBC 4.2 (JRE 8+) driver for YugaByte SQL database

There is a newer version: 42.3.5-yb-7

/*
 * Copyright (c) 2021, PostgreSQL Global Development Group
 * See the LICENSE file in the project root for more information.
 */

package org.postgresql.util.internal;

/**
 * This class is excluded from {@code forbidden-apis} check.
 * @see Extend
 * suppression configuration to be more fine grained
 */
public class Unsafe {
  public static boolean credentialCacheExists() {
    try {
      @SuppressWarnings({"nullness"})
      sun.security.krb5.Credentials credentials =
          sun.security.krb5.Credentials.acquireTGTFromCache(null, null);
      return credentials != null;
    } catch (Exception ex) {
      return false;
    }
  }
}