Merge branch '2.3.x' into 2.4.x

Closes gh-25182

spring-boot-project/spring-boot-cli/src/intTest/java/org/springframework/boot/cli/infrastructure/CommandLineInvoker.java

 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -83,8 +83,8 @@ public final class CommandLineInvoker {
 	private File findLaunchScript() throws IOException {
 		File unpacked = new File(this.temp, "unpacked-cli");
 		if (!unpacked.isDirectory()) {
-			File zip = new File(new BuildOutput(getClass()).getRootLocation(), "distributions")
-					.listFiles((pathname) -> pathname.getName().endsWith("-bin.zip"))[0];
+			File zip = new File(new BuildOutput(getClass()).getRootLocation(),
+					"distributions/spring-boot-cli-" + Versions.getBootVersion() + "-bin.zip");
 			try (ZipInputStream input = new ZipInputStream(new FileInputStream(zip))) {
 				ZipEntry entry;
 				while ((entry = input.getNextEntry()) != null) {

spring-boot-project/spring-boot-cli/src/intTest/java/org/springframework/boot/cli/infrastructure/Versions.java

+/*
+ * Copyright 2012-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.cli.infrastructure;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+/**
+ * Provides access to the current Boot version by referring to {@code gradle.properties}.
+ *
+ * @author Andy Wilkinson
+ */
+final class Versions {
+
+	private Versions() {
+	}
+
+	static String getBootVersion() {
+		Properties gradleProperties = new Properties();
+		try (FileInputStream input = new FileInputStream("../../gradle.properties")) {
+			gradleProperties.load(input);
+			return gradleProperties.getProperty("version");
+		}
+		catch (IOException ex) {
+			throw new RuntimeException(ex);
+		}
+	}
+
+}