diff --git a/core/data-plane/data-plane-core/src/test/java/org/eclipse/edc/connector/dataplane/framework/pipeline/PipelineServiceImplTest.java b/core/data-plane/data-plane-core/src/test/java/org/eclipse/edc/connector/dataplane/framework/pipeline/PipelineServiceImplTest.java
index 4bf4f70d055..5a385c11080 100644
--- a/core/data-plane/data-plane-core/src/test/java/org/eclipse/edc/connector/dataplane/framework/pipeline/PipelineServiceImplTest.java
+++ b/core/data-plane/data-plane-core/src/test/java/org/eclipse/edc/connector/dataplane/framework/pipeline/PipelineServiceImplTest.java
@@ -19,7 +19,6 @@
 import org.eclipse.edc.connector.dataplane.spi.pipeline.DataSinkFactory;
 import org.eclipse.edc.connector.dataplane.spi.pipeline.DataSource;
 import org.eclipse.edc.connector.dataplane.spi.pipeline.DataSourceFactory;
-import org.eclipse.edc.connector.dataplane.spi.pipeline.StreamFailure;
 import org.eclipse.edc.connector.dataplane.spi.pipeline.StreamResult;
 import org.eclipse.edc.spi.monitor.Monitor;
 import org.eclipse.edc.spi.types.domain.DataAddress;
@@ -135,9 +134,12 @@ void terminate_shouldFail_whenSourceClosureFails() throws Exception {
 
         var future = service.transfer(dataFlow.toRequest()).thenApply(result -> service.terminate(dataFlow));
 
-        assertThat(future).succeedsWithin(5, TimeUnit.SECONDS).satisfies(result -> {
-            assertThat(result).isFailed().extracting(StreamFailure::getReason).isEqualTo(GENERAL_ERROR);
-        });
+        assertThat(future).succeedsWithin(5, TimeUnit.SECONDS)
+                .satisfies(result -> {
+                    assertThat(result.failed()).isTrue();
+                    assertThat(result.getFailure().getReason()).isEqualTo(GENERAL_ERROR);
+                    assertThat(result.getFailure().getFailureDetail()).startsWith(GENERAL_ERROR.toString());
+                });
     }
 
     @Test
@@ -146,7 +148,12 @@ void terminate_shouldFail_whenTransferDoesNotExist() {
 
         var result = service.terminate(dataFlow);
 
-        assertThat(result).isFailed().extracting(StreamFailure::getReason).isEqualTo(NOT_FOUND);
+        assertThat(result)
+                .satisfies(r -> {
+                    assertThat(r.failed()).isTrue();
+                    assertThat(r.getFailure().getReason()).isEqualTo(NOT_FOUND);
+                    assertThat(r.getFailure().getFailureDetail()).startsWith(NOT_FOUND.toString());
+                });
         verifyNoInteractions(source);
     }
 
diff --git a/core/data-plane/data-plane-util/src/test/java/org/eclipse/edc/connector/dataplane/util/sink/ParallelSinkTest.java b/core/data-plane/data-plane-util/src/test/java/org/eclipse/edc/connector/dataplane/util/sink/ParallelSinkTest.java
index 931210c76be..bc81487ba96 100644
--- a/core/data-plane/data-plane-util/src/test/java/org/eclipse/edc/connector/dataplane/util/sink/ParallelSinkTest.java
+++ b/core/data-plane/data-plane-util/src/test/java/org/eclipse/edc/connector/dataplane/util/sink/ParallelSinkTest.java
@@ -34,6 +34,7 @@
 import static java.lang.String.format;
 import static java.util.UUID.randomUUID;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.eclipse.edc.connector.dataplane.spi.pipeline.StreamFailure.Reason.GENERAL_ERROR;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -92,9 +93,12 @@ void transfer_whenFailureDuringTransfer_fails() {
         fakeSink.transferResultSupplier = () -> StreamResult.error(errorMessage);
 
         assertThat(fakeSink.transfer(dataSource)).succeedsWithin(500, TimeUnit.MILLISECONDS)
-                .satisfies(transferResult -> assertThat(transferResult.failed()).isTrue())
-                .satisfies(transferResult -> assertThat(transferResult.getFailure().getReason()).isEqualTo(StreamFailure.Reason.GENERAL_ERROR))
-                .satisfies(transferResult -> assertThat(transferResult.getFailureMessages()).containsExactly(errorMessage));
+                .satisfies(transferResult -> {
+                    assertThat(transferResult.failed()).isTrue();
+                    assertThat(transferResult.getFailure().getReason()).isEqualTo(GENERAL_ERROR);
+                    assertThat(transferResult.getFailure().getFailureDetail()).startsWith(GENERAL_ERROR.toString());
+                    assertThat(transferResult.getFailureMessages()).containsExactly(errorMessage);
+                });
 
         assertThat(fakeSink.parts).containsExactly(dataSource);
         assertThat(fakeSink.complete).isEqualTo(0);
@@ -107,10 +111,13 @@ void transfer_whenExceptionDuringTransfer_fails() {
         };
 
         assertThat(fakeSink.transfer(dataSource)).succeedsWithin(500, TimeUnit.MILLISECONDS)
-                .satisfies(transferResult -> assertThat(transferResult.failed()).isTrue())
-                .satisfies(transferResult -> assertThat(transferResult.getFailure().getReason()).isEqualTo(StreamFailure.Reason.GENERAL_ERROR))
-                .satisfies(transferResult -> assertThat(transferResult.getFailureMessages())
-                        .containsExactly("Unhandled exception raised when transferring data: java.lang.RuntimeException: " + errorMessage));
+                .satisfies(transferResult -> {
+                    assertThat(transferResult.failed()).isTrue();
+                    assertThat(transferResult.getFailure().getReason()).isEqualTo(GENERAL_ERROR);
+                    assertThat(transferResult.getFailure().getFailureDetail()).startsWith(GENERAL_ERROR.toString());
+                    assertThat(transferResult.getFailureMessages())
+                            .containsExactly("Unhandled exception raised when transferring data: java.lang.RuntimeException: " + errorMessage);
+                });
 
         assertThat(fakeSink.parts).containsExactly(dataSource);
         assertThat(fakeSink.complete).isEqualTo(0);
diff --git a/spi/data-plane/data-plane-spi/src/main/java/org/eclipse/edc/connector/dataplane/spi/pipeline/StreamFailure.java b/spi/data-plane/data-plane-spi/src/main/java/org/eclipse/edc/connector/dataplane/spi/pipeline/StreamFailure.java
index ddbe79e24f0..46b7a3f5dc2 100644
--- a/spi/data-plane/data-plane-spi/src/main/java/org/eclipse/edc/connector/dataplane/spi/pipeline/StreamFailure.java
+++ b/spi/data-plane/data-plane-spi/src/main/java/org/eclipse/edc/connector/dataplane/spi/pipeline/StreamFailure.java
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+ *  Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
  *
  *  This program and the accompanying materials are made available under the
  *  terms of the Apache License, Version 2.0 which is available at
@@ -9,7 +9,6 @@
  *
  *  Contributors:
  *       Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
- *       zub4t - Improving failure detail message
  *
  */
 
@@ -33,11 +32,7 @@ public StreamFailure(List<String> messages, Reason reason) {
     @Override
     public String getFailureDetail() {
         var str = super.getFailureDetail();
-        if (str != null && !str.isEmpty()) {
-            str = reason + ": " + str;
-            return str;
-        }
-        return String.valueOf(reason);
+        return (str != null && !str.isEmpty()) ? (reason + ": " + str) : (reason + "");
     }
 
     public Reason getReason() {