Enable archivedCache for the box classes even when PreviewFeatures.isEnabled()==true

Author: iklam

src/java.base/share/classes/java/lang/Byte.java

@@ -127,9 +127,7 @@ private ByteCache() {}
             final int size = -(-128) + 127 + 1;
 
             // Load and use the archived cache if it exists
-            if (!PreviewFeatures.isEnabled()) {
-                CDS.initializeFromArchive(ByteCache.class);
-            }
+            CDS.initializeFromArchive(ByteCache.class);
             if (archivedCache == null) {
                 Byte[] c = newCacheArray(size);
                 byte value = (byte)-128;

src/java.base/share/classes/java/lang/Character.java

@@ -9439,9 +9439,7 @@ private CharacterCache(){}
             int size = 127 + 1;
 
             // Load and use the archived cache if it exists
-            if (!PreviewFeatures.isEnabled()) {
-                CDS.initializeFromArchive(CharacterCache.class);
-            }
+            CDS.initializeFromArchive(CharacterCache.class);
             if (archivedCache == null) {
                 Character[] c = newCacheArray(size);
                 for (int i = 0; i < size; i++) {

src/java.base/share/classes/java/lang/Integer.java

@@ -935,22 +935,18 @@ private static void runtimeSetup() {
             high = h;
 
             Integer[] precomputed = null;
-            if (!PreviewFeatures.isEnabled()) {
-                if (cache != null) {
-                    // IntegerCache has been AOT-initialized.
-                    precomputed = cache;
-                } else {
-                    // Legacy CDS archive support (to be deprecated):
-                    // Load IntegerCache.archivedCache from archive, if possible
-                    CDS.initializeFromArchive(IntegerCache.class);
-                    precomputed = archivedCache;
-                }
+            if (cache != null) {
+                // IntegerCache has been AOT-initialized.
+                precomputed = cache;
+            } else {
+                // Legacy CDS archive support (to be deprecated):
+                // Load IntegerCache.archivedCache from archive, if possible
+                CDS.initializeFromArchive(IntegerCache.class);
+                precomputed = archivedCache;
             }
 
             cache = loadOrInitializeCache(precomputed);
-            if (!PreviewFeatures.isEnabled()) {
-                archivedCache = cache; // Legacy CDS archive support (to be deprecated)
-            }
+            archivedCache = cache; // Legacy CDS archive support (to be deprecated)
             // range [-128, 127] must be interned (JLS7 5.1.7)
             assert IntegerCache.high >= 127;
         }

src/java.base/share/classes/java/lang/Long.java

@@ -937,9 +937,7 @@ private LongCache() {}
             int size = -(-128) + 127 + 1;
 
             // Load and use the archived cache if it exists
-            if (!PreviewFeatures.isEnabled()) {
-                CDS.initializeFromArchive(LongCache.class);
-            }
+            CDS.initializeFromArchive(LongCache.class);
             if (archivedCache == null) {
                 Long[] c = newCacheArray(size);
                 long value = -128;

src/java.base/share/classes/java/lang/Short.java

@@ -254,9 +254,7 @@ private ShortCache() {}
             int size = -(-128) + 127 + 1;
 
             // Load and use the archived cache if it exists
-            if (!PreviewFeatures.isEnabled()) {
-                CDS.initializeFromArchive(ShortCache.class);
-            }
+            CDS.initializeFromArchive(ShortCache.class);
             if (archivedCache == null) {
                 Short[] c = newCacheArray(size);
                 short value = -128;