8274811: Remove superfluous use of boxing in java.base

Reviewed-by: lancea

Author: Andrey Turbanov

src/java.base/linux/classes/sun/nio/fs/LinuxFileStore.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2021, 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
@@ -112,7 +112,7 @@ private static int[] getKernelVersion() {
         int[] majorMinorMicro = new int[3];
         int length = Math.min(matches.length, majorMinorMicro.length);
         for (int i = 0; i < length; i++) {
-            majorMinorMicro[i] = Integer.valueOf(matches[i]);
+            majorMinorMicro[i] = Integer.parseInt(matches[i]);
         }
         return majorMinorMicro;
     }

src/java.base/share/classes/java/util/ResourceBundle.java

@@ -3729,7 +3729,7 @@ private static String toPackageName(String bundleName) {
 
     }
 
-    private static final boolean TRACE_ON = Boolean.valueOf(
+    private static final boolean TRACE_ON = Boolean.parseBoolean(
         GetPropertyAction.privilegedGetProperty("resource.bundle.debug", "false"));
 
     private static void trace(String format, Object... params) {

src/java.base/share/classes/sun/security/tools/keytool/Main.java

@@ -4161,18 +4161,18 @@ private static Date getStartDate(String s) throws IOException {
                 }
                 if (date != null) {
                     if (date.matches("\\d\\d\\d\\d\\/\\d\\d\\/\\d\\d")) {
-                        c.set(Integer.valueOf(date.substring(0, 4)),
-                                Integer.valueOf(date.substring(5, 7))-1,
-                                Integer.valueOf(date.substring(8, 10)));
+                        c.set(Integer.parseInt(date.substring(0, 4)),
+                                Integer.parseInt(date.substring(5, 7))-1,
+                                Integer.parseInt(date.substring(8, 10)));
                     } else {
                         throw ioe;
                     }
                 }
                 if (time != null) {
                     if (time.matches("\\d\\d:\\d\\d:\\d\\d")) {
-                        c.set(Calendar.HOUR_OF_DAY, Integer.valueOf(time.substring(0, 2)));
-                        c.set(Calendar.MINUTE, Integer.valueOf(time.substring(3, 5)));
-                        c.set(Calendar.SECOND, Integer.valueOf(time.substring(6, 8)));
+                        c.set(Calendar.HOUR_OF_DAY, Integer.parseInt(time.substring(0, 2)));
+                        c.set(Calendar.MINUTE, Integer.parseInt(time.substring(3, 5)));
+                        c.set(Calendar.SECOND, Integer.parseInt(time.substring(6, 8)));
                         c.set(Calendar.MILLISECOND, 0);
                     } else {
                         throw ioe;

src/java.base/share/classes/sun/util/locale/provider/LocaleResources.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2021, 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
@@ -605,7 +605,7 @@ String getCacheKey() {
         }
     }
 
-    private static final boolean TRACE_ON = Boolean.valueOf(
+    private static final boolean TRACE_ON = Boolean.parseBoolean(
         GetPropertyAction.privilegedGetProperty("locale.resources.debug", "false"));
 
     public static void trace(String format, Object... params) {