src/java.base/share/classes/com/sun/net/ssl/TrustManagerFactory.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

*** 153,163 ****
       */
      public static final TrustManagerFactory getInstance(String algorithm,
                                                   String provider)
          throws NoSuchAlgorithmException, NoSuchProviderException
      {
!         if (provider == null || provider.length() == 0)
              throw new IllegalArgumentException("missing provider");
          Object[] objs = SSLSecurity.getImpl(algorithm, "TrustManagerFactory",
                                              provider);
          return new TrustManagerFactory((TrustManagerFactorySpi)objs[0],
              (Provider)objs[1], algorithm);
--- 153,163 ----
       */
      public static final TrustManagerFactory getInstance(String algorithm,
                                                   String provider)
          throws NoSuchAlgorithmException, NoSuchProviderException
      {
!         if (provider == null || provider.isEmpty())
              throw new IllegalArgumentException("missing provider");
          Object[] objs = SSLSecurity.getImpl(algorithm, "TrustManagerFactory",
                                              provider);
          return new TrustManagerFactory((TrustManagerFactorySpi)objs[0],
              (Provider)objs[1], algorithm);