修复JsonByteBuffer解析bug

src/main/java/org/redkale/convert/json/JsonByteBufferReader.java

@@ -164,6 +164,7 @@ public class JsonByteBufferReader extends JsonReader {
         if (ch == 'N' && nextChar() == 'U' && nextChar() == 'L' && nextChar() == 'L') {
             return SIGN_NULL;
         }
+        int pos = this.position;
         StringBuilder sb = new StringBuilder();
         sb.append(ch);
         char one;
@@ -171,7 +172,7 @@ public class JsonByteBufferReader extends JsonReader {
             while ((one = nextChar()) != 0) sb.append(one);
         } catch (Exception e) {
         }
-        throw new ConvertException("a json array text must begin with '[' (position = " + position + ") but '" + ch + "' in (" + sb + ")");
+        throw new ConvertException("a json array text must begin with '[' (position = " + pos + ") but '" + ch + "' in (" + sb + ")");
     }
 
     /**
@@ -183,6 +184,7 @@ public class JsonByteBufferReader extends JsonReader {
         if (ch == ':') {
             return;
         }
+        int pos = this.position;
         StringBuilder sb = new StringBuilder();
         sb.append(ch);
         char one;
@@ -190,7 +192,7 @@ public class JsonByteBufferReader extends JsonReader {
             while ((one = nextChar()) != 0) sb.append(one);
         } catch (Exception e) {
         }
-        throw new ConvertException("expected a ':' but '" + ch + "'(position = " + position + ") in (" + sb + ")");
+        throw new ConvertException("expected a ':' but '" + ch + "'(position = " + pos + ") in (" + sb + ")");
     }
 
     /**

src/main/java/org/redkale/convert/json/JsonReader.java

@@ -365,7 +365,7 @@ public class JsonReader extends Reader {
             if (nt == '}' || nt == ']') {
                 return false;
             }
-            backChar(ch);
+            backChar(nt);
             return true;
         }
         if (ch == '}' || ch == ']') {

src/main/java/org/redkale/util/ByteArray.java

@@ -9,7 +9,7 @@ import java.io.*;
 import java.nio.ByteBuffer;
 import java.nio.channels.ReadableByteChannel;
 import java.nio.charset.*;
-import java.util.Arrays;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
 /**
@@ -31,17 +31,18 @@ public final class ByteArray implements ByteTuple {
     }
 
     public ByteArray(int size) {
-        content = new byte[Math.max(1, size)];
+        this.content = new byte[Math.max(1, size)];
     }
 
     public ByteArray(ByteTuple tuple) {
-        content = tuple.content();
-        count = tuple.length();
+        this.content = tuple.content();
+        this.count = tuple.length();
     }
 
     public ByteArray(byte[] bs) {
-        content = bs;
-        count = 0;
+        Objects.requireNonNull(bs);
+        this.content = bs;
+        this.count = bs.length;
     }
 
     /**