Merge pull request #67 from paketo-buildpacks/gh_issue_66

Spring should not be required when using Native Image buildpack

native/build.go

@@ -45,16 +45,11 @@ func (b Build) Build(context libcnb.BuildContext) (libcnb.BuildResult, error) {
 		return libcnb.BuildResult{}, fmt.Errorf("unable to read manifest in %s\n%w", context.Application.Path, err)
 	}
 
-	_, ok := manifest.Get("Spring-Boot-Version")
-	if !ok {
-		return libcnb.BuildResult{}, nil
-	}
-
 	cr, err := libpak.NewConfigurationResolver(context.Buildpack, &b.Logger)
 	if err != nil {
 		return libcnb.BuildResult{}, fmt.Errorf("unable to create configuration resolver\n%w", err)
 	}
-	if _, ok = cr.Resolve(DeprecatedConfigNativeImage); ok {
+	if _, ok := cr.Resolve(DeprecatedConfigNativeImage); ok {
 		b.warn(fmt.Sprintf("$%s has been deprecated. Please use $%s instead.",
 			DeprecatedConfigNativeImage,
 			ConfigNativeImage,

native/native_image.go

@@ -22,7 +22,6 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strings"
 
 	"github.com/buildpacks/libcnb"
@@ -164,16 +163,3 @@ func (n NativeImage) Contribute(layer libcnb.Layer) (libcnb.Layer, error) {
 func (NativeImage) Name() string {
 	return "native-image"
 }
-
-func (NativeImage) hasSpringNative(libs []string) bool {
-	// matches either spring-native or legacy spring-graalvm-native
-	re := regexp.MustCompile(`spring-(?:graalvm-|)native-.+\.jar`)
-
-	for _, l := range libs {
-		if re.MatchString(l) {
-			return true
-		}
-	}
-
-	return false
-}