Fix NoSuchMethodError on Java 8 for java.nio.ByteBuffer

sdk-core/src/main/java/io/milvus/common/utils/Float16Utils.java

@@ -1,5 +1,6 @@
 package io.milvus.common.utils;
 
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.ShortBuffer;
@@ -161,7 +162,7 @@ public static ByteBuffer f32VectorToBf16Buffer(List<Float> vector) {
      * @return List of Float a float32 vector
      */
     public static List<Float> fp16BufferToVector(ByteBuffer buf) {
-        buf.rewind(); // reset the read position
+        ((Buffer) buf).rewind(); // reset the read position
         List<Float> vector = new ArrayList<>();
         ShortBuffer sbuf = buf.asShortBuffer();
         for (int i = 0; i < sbuf.limit(); i++) {
@@ -198,7 +199,7 @@ public static ByteBuffer f32VectorToFp16Buffer(List<Float> vector) {
      * @return List of Float the vector is converted to float32 values
      */
     public static List<Float> bf16BufferToVector(ByteBuffer buf) {
-        buf.rewind(); // reset the read position
+        ((Buffer) buf).rewind(); // reset the read position
         List<Float> vector = new ArrayList<>();
         ShortBuffer sbuf = buf.asShortBuffer();
         for (int i = 0; i < sbuf.limit(); i++) {
@@ -234,7 +235,7 @@ public static ByteBuffer f16VectorToBuffer(List<Short> vector) {
      * @return List of Short the vector is converted to a list of Short, each Short value is a float16 value
      */
     public static List<Short> bufferToF16Vector(ByteBuffer buf) {
-        buf.rewind(); // reset the read position
+        ((Buffer) buf).rewind(); // reset the read position
         List<Short> vector = new ArrayList<>();
         ShortBuffer sbuf = buf.asShortBuffer();
         for (int i = 0; i < sbuf.limit(); i++) {

sdk-core/src/main/java/io/milvus/param/ParamUtils.java

@@ -37,6 +37,7 @@
 import org.apache.commons.collections4.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.*;
@@ -1329,11 +1330,11 @@ public static SortedMap<Long, Float> decodeSparseFloatVector(ByteBuffer buf) {
                 pBuf.put(aa[k]); // fill the first 4 bytes with the unit bytes
             }
             pBuf.putInt(0); // fill the last 4 bytes to zero
-            pBuf.rewind(); // reset position to head
+            ((Buffer) pBuf).rewind(); // reset position to head
             long k = pBuf.getLong(); // this is the long value converted from the uint
 
             // here we get the float value as normal
-            buf.position(offset + 4); // position offsets 4 bytes since they were converted to long
+            ((Buffer) buf).position(offset + 4); // position offsets 4 bytes since they were converted to long
             float v = buf.getFloat(); // this is the float value
             sparse.put(k, v);
         }