Refactor the logic to evaluate every byte in the chunk if there is a byte in that chunk that needs escaping.

Author: samyron

java/src/json/ext/AbstractByteListDirectOutputStream.java

@@ -7,7 +7,7 @@
 
 abstract class AbstractByteListDirectOutputStream extends OutputStream {
 
-    private static final String PROP_SEGMENTED_BUFFER = "json.useSegmentedOutputStream";
+    private static final String PROP_SEGMENTED_BUFFER = "jruby.json.useSegmentedOutputStream";
     private static final String PROP_SEGMENTED_BUFFER_DEFAULT = "true";
 
     private static final boolean USE_SEGMENTED_BUFFER;

java/src/json/ext/SWARBasicStringEncoder.java

@@ -30,13 +30,15 @@ void encode(ByteList src) throws IOException {
                 pos += 8;
                 continue;
             }
-            for (int i = 0; i < 8; i++) {
-                int ch = Byte.toUnsignedInt(ptrBytes[ptr + pos + i]);
+            int chunkEnd = pos + 8;
+            while (pos < chunkEnd) {
+                int ch = Byte.toUnsignedInt(ptrBytes[ptr + pos]);
                 int ch_len = ESCAPE_TABLE[ch];
                 if (ch_len > 0) {
-                    beg = pos = flushPos(pos + i, beg, ptrBytes, ptr, 1);
+                    beg = pos = flushPos(pos, beg, ptrBytes, ptr, 1);
                     escapeAscii(ch, scratch, hexdig);
-                    break;
+                } else {
+                    pos++;
                 }
             }
         }

java/src/json/ext/SegmentedByteListDirectOutputStream.java

@@ -9,6 +9,8 @@ public class SegmentedByteListDirectOutputStream extends AbstractByteListDirectO
     private static final int DEFAULT_CAPACITY = 1024;
 
     private int totalLength;
+    // Why 21? The minimum segment size is 1024 bytes. If we double the segment size each time 
+    // we need a new segment, we only need 21 segments to reach the maximum array size in Java.
     private byte[][] segments = new byte[21][];
     private int currentSegmentIndex;
     private int currentSegmentLength;

java/src/json/ext/StringEncoder.java

@@ -114,7 +114,7 @@ class StringEncoder extends ByteListTranscoder {
 
     protected final byte[] escapeTable;
 
-    private static final String USE_SWAR_BASIC_ENCODER_PROP = "json.useSWARBasicEncoder";
+    private static final String USE_SWAR_BASIC_ENCODER_PROP = "jruby.json.useSWARBasicEncoder";
     private static final String USE_SWAR_BASIC_ENCODER_DEFAULT = "true";
     private static final boolean USE_BASIC_SWAR_ENCODER;