src/java.desktop/share/classes/sun/print/PSPrinterJob.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -1592,19 +1592,19 @@
         int pFlags = 0;
         String[] execCmd;
         int ncomps = 2; // minimum number of print args
         int n = 0;
 
-        if (printer != null && !printer.equals("") && !printer.equals("lp")) {
+        if (printer != null && !printer.isEmpty() && !printer.equals("lp")) {
             pFlags |= PRINTER;
             ncomps+=1;
         }
-        if (options != null && !options.equals("")) {
+        if (options != null && !options.isEmpty()) {
             pFlags |= OPTIONS;
             ncomps+=1;
         }
-        if (jobTitle != null && !jobTitle.equals("")) {
+        if (jobTitle != null && !jobTitle.isEmpty()) {
             pFlags |= JOBTITLE;
             ncomps+=1;
         }
         if (copies > 1) {
             pFlags |= COPIES;