Removed exception constructors no args

foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiClient.java

@@ -196,7 +196,7 @@ private <T> T executeRequest(
       final var client = ApacheHttpClient5Accessor.getHttpClient(destination);
       return client.execute(request, new OpenAiResponseHandler<>(responseType));
     } catch (final IOException e) {
-      throw new OpenAiClientException(e);
+      throw new OpenAiClientException("Request to OpenAI model failed", e);
     }
   }
 
@@ -209,7 +209,7 @@ private <D extends StreamedDelta> Stream<D> streamRequest(
       return new OpenAiStreamingHandler<>(deltaType)
           .handleResponse(client.executeOpen(null, request, null));
     } catch (final IOException e) {
-      throw new OpenAiClientException(e);
+      throw new OpenAiClientException("Request to OpenAI model failed", e);
     }
   }
 }

foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiClientException.java

@@ -5,23 +5,8 @@
 
 /** Generic exception for errors occurring when using OpenAI foundation models. */
 public class OpenAiClientException extends RuntimeException {
-  static final String BASE_ERROR_MESSAGE = "Request to OpenAI model failed";
   @Serial private static final long serialVersionUID = -7345541120979974432L;
 
-  /** Create a new exception with the base message: {@code Request to OpenAI model failed} */
-  public OpenAiClientException() {
-    this(BASE_ERROR_MESSAGE);
-  }
-
-  /**
-   * Create a new exception with the base message: {@code Request to OpenAI model failed}
-   *
-   * @param e the cause
-   */
-  public OpenAiClientException(@Nonnull final Exception e) {
-    this(BASE_ERROR_MESSAGE, e);
-  }
-
   /**
    * Create a new exception with the given message.
    *