FINERACT-1724: Jakarta namespace introduction + relevant upgrades + EclipseLink 4 upgrade along with Spring Boot 3

fineract-client/build.gradle

@@ -16,10 +16,11 @@
  * specific language governing permissions and limitations
  * under the License.
  */
+plugins {
+    id 'org.openapi.generator' version '6.6.0'
+}
 description = 'Fineract Client'
 
-apply plugin: 'org.openapi.generator'
-
 apply from: 'dependencies.gradle'
 
 // enable when all tests are migrated

fineract-client/dependencies.gradle

@@ -17,10 +17,13 @@
  * under the License.
  */
 dependencies {
-    // project(':fineract-provider')
+    // this needs to stay on exactly this version because the OpenAPI Generator
+    // only handles javax annotations, not jakarta ones
+    implementation 'jakarta.annotation:jakarta.annotation-api:1.3.5'
+
+
     implementation(
-            'jakarta.annotation:jakarta.annotation-api',
-            'io.swagger:swagger-annotations',
+            'io.swagger.core.v3:swagger-annotations-jakarta',
             'com.squareup.retrofit2:retrofit',
             'com.squareup.retrofit2:adapter-java8',
             'com.squareup.retrofit2:adapter-rxjava2', // TODO https://github.com/OpenAPITools/openapi-generator/issues/7758
@@ -30,6 +33,7 @@ dependencies {
             'com.google.code.findbugs:jsr305',
             'com.squareup.okhttp3:logging-interceptor',
             )
+
     // org.apache.oltu.oauth2 is used in org.apache.fineract.client.auth.OAuthOkHttpClient (only; can be excluded by consumers not requiring OAuth)
     implementation('org.apache.oltu.oauth2:org.apache.oltu.oauth2.client') {
         exclude group: 'org.apache.oltu.oauth2', module: 'org.apache.oltu.oauth2.common'