generate test code to target/test-classes

Author: hboutemy

modules/jooby-openapi/src/test/java/issues/Issue1582.java

@@ -20,7 +20,7 @@
 import io.swagger.v3.oas.models.info.Info;
 
 public class Issue1582 {
-  private Path outDir = Paths.get(System.getProperty("user.dir"), "target", "classes");
+  private Path outDir = Paths.get(System.getProperty("user.dir"), "target", "test-classes");
 
   @Test
   public void shouldGenerateOnOneLvelPackageLocation() throws IOException {