Embedded LDAP SSL should not be enabled when its bundle is empty

See gh-50700

Signed-off-by: leestana01 <leestana01@naver.com>

Author: leestana01

module/spring-boot-ldap/src/main/java/org/springframework/boot/ldap/autoconfigure/embedded/EmbeddedLdapProperties.java

@@ -24,6 +24,7 @@
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.convert.Delimiter;
 import org.springframework.core.io.Resource;
+import org.springframework.util.StringUtils;
 
 /**
  * Configuration properties for Embedded LDAP.
@@ -150,7 +151,7 @@ public static class Ssl {
 		private @Nullable String bundle;
 
 		public boolean isEnabled() {
-			return (this.enabled != null) ? this.enabled : this.bundle != null;
+			return (this.enabled != null) ? this.enabled : StringUtils.hasText(this.bundle);
 		}
 
 		public void setEnabled(boolean enabled) {

module/spring-boot-ldap/src/test/java/org/springframework/boot/ldap/autoconfigure/embedded/EmbeddedLdapAutoConfigurationTests.java

@@ -411,6 +411,13 @@ void whenInvalidSslBundleIsConfiguredThenStartFails() {
 		});
 	}
 
+	@Test
+	void sslIsNotEnabledWhenBundleIsEmpty() {
+		EmbeddedLdapProperties properties = new EmbeddedLdapProperties();
+		properties.getSsl().setBundle("");
+		assertThat(properties.getSsl().isEnabled()).isFalse();
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class LdapClientConfiguration {