building master creates changes on file
**Describe the bug**
After Quarkus has been locally build with `mvn clean install -DskipTests=true` and I check `git status` I can see changes on files I haven'ts touched :  
```

modified:   extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java
modified:   extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java
modified:   integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java

```

**Expected behavior**
 After a build i would expect only changes on the files I changed myself



**To Reproduce**
Steps to reproduce the behavior:
1. `mvn clean install -DskipTests=true`
2. `git status`

**Environment (please complete the following information):**
 - Output of `uname -a` or `ver`: Linux localhost.localdomain 5.0.13-300.fc30.x86_64 #1 SMP Mon May 6 00:39:45 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
 - Output of `java -version`: openjdk version "1.8.0_212"
 - GraalVM version (if different from Java): rc16
 - Quarkus version or git rev: master


diff --git a/extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java b/extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java
index 976fe2d727d..9afb35a6073 100644
--- a/extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java
+++ b/extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java
@@ -2,16 +2,12 @@
 
 import javax.enterprise.context.ApplicationScoped;
 import javax.inject.Inject;
-import javax.transaction.SystemException;
 import javax.transaction.TransactionManager;
 import javax.transaction.Transactional;
 import javax.transaction.Transactional.TxType;
 
-import org.eclipse.microprofile.reactive.streams.operators.ReactiveStreams;
 import org.junit.jupiter.api.Assertions;
-import org.reactivestreams.Publisher;
 
-import io.quarkus.hibernate.orm.panache.Panache;
 import io.reactivex.Flowable;
 import io.reactivex.Single;
 
diff --git a/extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java b/extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java
index b6a7f1e3d57..d6d4a48b668 100644
--- a/extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java
+++ b/extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java
@@ -3,7 +3,6 @@
 import java.util.List;
 import java.util.concurrent.ExecutorService;
 
-import org.eclipse.microprofile.context.spi.ContextManager;
 import org.eclipse.microprofile.context.spi.ContextManagerExtension;
 import org.eclipse.microprofile.context.spi.ContextManagerProvider;
 import org.eclipse.microprofile.context.spi.ThreadContextProvider;
diff --git a/integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java b/integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java
index 597c97c3d79..8536a6d4f92 100644
--- a/integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java
+++ b/integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java
@@ -18,16 +18,8 @@
 
 import static org.hamcrest.Matchers.is;
 
-import java.io.ByteArrayOutputStream;
-import java.io.InputStream;
-import java.net.URL;
-import java.net.URLConnection;
-import java.nio.charset.StandardCharsets;
-
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-import io.quarkus.test.common.http.TestHTTPResource;
 import io.quarkus.test.junit.QuarkusTest;
 import io.restassured.RestAssured;
 
['extensions/smallrye-context-propagation/runtime/src/main/java/io/quarkus/smallrye/context/runtime/SmallRyeContextPropagationTemplate.java', 'integration-tests/main/src/test/java/io/quarkus/it/main/ContextPropagationTestCase.java', 'extensions/smallrye-context-propagation/deployment/src/test/java/io/quarkus/context/test/TransactionalBean.java']