fix (core): Get dynamic enum value when used as an URL parameter

core/src/main/com/sinch/sdk/core/http/URLParameterUtils.java

@@ -1,6 +1,7 @@
 package com.sinch.sdk.core.http;
 
 import com.sinch.sdk.core.exceptions.ApiException;
+import com.sinch.sdk.core.utils.EnumDynamic;
 import com.sinch.sdk.core.utils.StringUtil;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
@@ -34,6 +35,10 @@ public static Optional<String> encode(URLParameter parameter) {
     }
     Object value = parameter.getValue();
 
+    if (value instanceof EnumDynamic) {
+      value = ((EnumDynamic<?, ?>) value).value();
+    }
+
     if (value instanceof String || value instanceof Number || value instanceof Boolean) {
       return encodeString(parameter.getStyle(), parameter.getName(), value.toString());
     }

core/src/test/java/com/sinch/sdk/core/http/AnEnum.java

@@ -0,0 +1,32 @@
+package com.sinch.sdk.core.http;
+
+import com.sinch.sdk.core.utils.EnumDynamic;
+import com.sinch.sdk.core.utils.EnumSupportDynamic;
+import java.util.Arrays;
+import java.util.stream.Stream;
+
+class AnEnum extends EnumDynamic<String, AnEnum> {
+
+  static final AnEnum ENUM1 = new AnEnum("ENUM1 value");
+
+  static final AnEnum ENUM2 = new AnEnum("ENUM2 value");
+
+  private static final EnumSupportDynamic<String, AnEnum> ENUM_SUPPORT =
+      new EnumSupportDynamic<>(AnEnum.class, AnEnum::new, Arrays.asList(ENUM1, ENUM2));
+
+  private AnEnum(String value) {
+    super(value);
+  }
+
+  public static Stream<AnEnum> values() {
+    return ENUM_SUPPORT.values();
+  }
+
+  public static AnEnum from(String value) {
+    return ENUM_SUPPORT.from(value);
+  }
+
+  public static String valueOf(AnEnum e) {
+    return ENUM_SUPPORT.valueOf(e);
+  }
+}

core/src/test/java/com/sinch/sdk/core/http/URLParameterUtilsTest.java

@@ -134,6 +134,22 @@ void encodeFormStringExplode() {
             new URLParameter("foo", "value with space and &,.", URLParameter.STYLE.FORM, true)));
   }
 
+  @Test
+  void encodeDynamicEnumStringNoExplode() {
+    assertEquals(
+        Optional.of("foo=ENUM1+value"),
+        URLParameterUtils.encode(
+            new URLParameter("foo", AnEnum.ENUM1, URLParameter.STYLE.FORM, false)));
+  }
+
+  @Test
+  void encodeDynamicEnumStringExplode() {
+    assertEquals(
+        Optional.of("foo=ENUM1+value"),
+        URLParameterUtils.encode(
+            new URLParameter("foo", AnEnum.ENUM1, URLParameter.STYLE.FORM, true)));
+  }
+
   @Test
   void encodeSimpleEmptyStringNoExplode() {
     assertThrows(