Start building against Spring LDAP 2.3.4 snapshots

See gh-26393

buildSrc/src/main/java/org/springframework/boot/build/toolchain/ToolchainPlugin.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.build.toolchain;
 
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 import org.gradle.api.Plugin;
@@ -85,9 +86,7 @@ public class ToolchainPlugin implements Plugin<Project> {
 
 	private void configureTestToolchain(Project project, ToolchainExtension toolchain) {
 		project.getTasks().withType(Test.class, (test) -> {
-			// See https://github.com/spring-projects/spring-ldap/issues/570
-			List<String> arguments = Arrays.asList("--add-exports=java.naming/com.sun.jndi.ldap=ALL-UNNAMED",
-					"--illegal-access=warn");
+			List<String> arguments = Collections.singletonList("--illegal-access=warn");
 			test.jvmArgs(arguments);
 		});
 	}

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1594,7 +1594,7 @@ bom {
 			]
 		}
 	}
-	library("Spring LDAP", "2.3.3.RELEASE") {
+	library("Spring LDAP", "2.3.4.BUILD-SNAPSHOT") {
 		group("org.springframework.ldap") {
 			modules = [
 				"spring-ldap-core",