Fixing test-order dependency for FstObjectInputTest (#2815)

Author: OrDTesters

dubbo-serialization/dubbo-serialization-test/src/test/java/org/apache/dubbo/common/serialize/fst/FstObjectOutputTest.java

@@ -18,6 +18,7 @@
 
 import org.apache.dubbo.common.serialize.model.AnimalEnum;
 import org.apache.dubbo.common.serialize.model.person.FullAddress;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -41,6 +42,11 @@ public void setUp() {
         this.fstObjectOutput = new FstObjectOutput(byteArrayOutputStream);
     }
 
+    @After
+    public void tearDown() throws IOException {
+        new FstObjectInput(new ByteArrayInputStream(new byte[]{0}));
+    }
+
 
     @Test
     public void testWriteBool() throws IOException {