Fix postgresql and general framework detection in go-based buildpack

src/java/common/context.go

@@ -152,27 +152,24 @@ func (v VCAPServices) HasTag(tag string) bool {
 	return false
 }
 
-// HasServiceByNamePattern checks if any service in "user-provided" matches the pattern
+// HasServiceByNamePattern checks if any service matches the pattern
 // This is needed for Docker platform where services are under "user-provided" label
 // Pattern matching is case-insensitive substring matching
 func (v VCAPServices) HasServiceByNamePattern(pattern string) bool {
 	return v.GetServiceByNamePattern(pattern) != nil
 }
 
-// GetServiceByNamePattern returns the first service in "user-provided" that matches the pattern
+// GetServiceByNamePattern returns the first service that matches the pattern
 // Returns nil if no matching service is found
 // Pattern matching is case-insensitive substring matching (e.g., "newrelic" matches "my-newrelic-service")
 func (v VCAPServices) GetServiceByNamePattern(pattern string) *VCAPService {
-	userProvided, exists := v["user-provided"]
-	if !exists {
-		return nil
-	}
-
 	// Case-insensitive substring matching
 	patternLower := strings.ToLower(pattern)
-	for _, service := range userProvided {
-		if strings.Contains(strings.ToLower(service.Name), patternLower) {
-			return &service
+	for _, services := range v {
+		for _, service := range services {
+			if strings.Contains(strings.ToLower(service.Name), patternLower) {
+				return &service
+			}
 		}
 	}
 

src/java/frameworks/postgresql_jdbc.go

@@ -1,10 +1,11 @@
 package frameworks
 
 import (
-	"github.com/cloudfoundry/java-buildpack/src/java/common"
 	"fmt"
+	"github.com/cloudfoundry/java-buildpack/src/java/common"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/cloudfoundry/libbuildpack"
 )
@@ -107,12 +108,12 @@ func (p *PostgresqlJdbcFramework) hasPostgresService() bool {
 	for _, services := range vcapServices {
 		for _, service := range services {
 			// Check if service name, label, or tags contain "postgres"
-			nameMatch := contains(service.Name, "postgres")
+			nameMatch := strings.Contains(strings.ToLower(service.Name), "postgres")
 			labelMatch := false
 			tagMatch := false
 
 			for _, tag := range service.Tags {
-				if contains(tag, "postgres") {
+				if strings.Contains(strings.ToLower(tag), "postgres") {
 					tagMatch = true
 					break
 				}