fix #189, dynamic codegen broken on map serialization

Author: taowen

src/main/java/com/jsoniter/output/CodegenImplMap.java

@@ -51,11 +51,6 @@ public static CodegenResult genMap(String cacheKey, ClassInfo classInfo) {
             ctx.append("stream.writeMore();");
         }
         genWriteMapKey(ctx, keyType, noIndention);
-        if (noIndention) {
-            ctx.append("stream.write(':');");
-        } else {
-            ctx.append("stream.write((byte)':', (byte)' ');");
-        }
         if (isCollectionValueNullable) {
             ctx.append("if (entry.getValue() == null) { stream.writeNull(); } else {");
             CodegenImplNative.genWriteOp(ctx, "entry.getValue()", valueType, true);

src/test/java/com/jsoniter/output/TestMap.java

@@ -1,6 +1,5 @@
 package com.jsoniter.output;
 
-import com.jsoniter.JsonIterator;
 import com.jsoniter.spi.Config;
 import com.jsoniter.spi.Encoder;
 import com.jsoniter.spi.JsoniterSpi;
@@ -9,6 +8,7 @@
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -147,4 +147,13 @@ public void test_object_key() {
         m.put(1, 2);
         assertEquals("{\"1\":2}", JsonStream.serialize(m));
     }
+
+    public void test_multiple_keys() {
+        HashMap<String, Object> map = new HashMap<String, Object>();
+        map.put("destination", "test_destination_value");
+        map.put("amount", new BigDecimal("0.0000101101"));
+        map.put("password", "test_pass");
+        final String serialized = JsonStream.serialize(map);
+        assertEquals(-1, serialized.indexOf("::"));
+    }
 }