ARROW-10388: [Java] Fix Spark integration build failure

Please see https://issues.apache.org/jira/browse/ARROW-10388

Closes apache#8526 from liyafan82/fly_1026_spk

Lead-authored-by: liyafan82 <fan_li_ya@foxmail.com>
Co-authored-by: emkornfield <emkornfield@gmail.com>
Signed-off-by: liyafan82 <fan_li_ya@foxmail.com>

java/vector/src/main/codegen/templates/ArrowType.java

@@ -176,6 +176,20 @@ public static Decimal createDecimal(
 
       return new Decimal(precision, scale, bitWidth == null ? 128 : bitWidth);
     }
+
+    /**
+     * Construct Decimal with 128 bits.
+     * 
+     * This is kept mainly for the sake of backward compatibility.
+     * Please use {@link org.apache.arrow.vector.types.pojo.ArrowType.Decimal#Decimal(int, int, int)} instead.
+     *
+     * @deprecated This API will be removed in a future release.
+     */
+    @Deprecated
+    public Decimal(int precision, int scale) {
+      this(precision, scale, 128);
+    }
+
     <#else>
     @JsonCreator
     </#if>