diff --git a/jkube-kit/jkube-kit-wildfly-jar/src/main/java/org/eclipse/jkube/wildfly/jar/generator/WildflyJARGenerator.java b/jkube-kit/jkube-kit-wildfly-jar/src/main/java/org/eclipse/jkube/wildfly/jar/generator/WildflyJARGenerator.java
index 85ff74dbc2..79fbf13153 100644
--- a/jkube-kit/jkube-kit-wildfly-jar/src/main/java/org/eclipse/jkube/wildfly/jar/generator/WildflyJARGenerator.java
+++ b/jkube-kit/jkube-kit-wildfly-jar/src/main/java/org/eclipse/jkube/wildfly/jar/generator/WildflyJARGenerator.java
@@ -16,6 +16,7 @@
 import org.eclipse.jkube.generator.api.GeneratorContext;
 import org.eclipse.jkube.generator.javaexec.JavaExecGenerator;
 import org.eclipse.jkube.kit.common.AssemblyFileSet;
+import org.eclipse.jkube.kit.common.JKubeException;
 import org.eclipse.jkube.kit.common.JavaProject;
 import org.eclipse.jkube.kit.common.Plugin;
 import org.eclipse.jkube.kit.common.util.JKubeProjectUtil;
@@ -89,9 +90,10 @@ protected List<AssemblyFileSet> addAdditionalFiles() {
                 parentDir = repoDir.getParent();
             }
             if (Files.notExists(repoDir)) {
-               throw new RuntimeException("Error, WildFly bootable JAR generator can't retrieve "
+               throw new JKubeException("Error, WildFly bootable JAR generator can't retrieve "
                        + "generated maven local cache, directory " + repoDir + " doesn't exist.");
             }
+
             set.add(AssemblyFileSet.builder()
                     .directory(parentDir.toFile())
                     .include(localRepoCache.getFileName().toString())