Fix checkstyle

Author: rwinch

spring-boot-testjars-maven/src/main/java/org/springframework/experimental/boot/server/exec/MavenClasspathEntry.java

@@ -21,8 +21,6 @@
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
-import java.util.Properties;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

spring-boot-testjars-maven/src/test/java/org/springframework/experimental/boot/server/exec/MavenClasspathEntryTests.java

@@ -54,15 +54,15 @@ void runtimeDependencyResolved() {
 				"org.springframework.boot:spring-boot-actuator-autoconfigure:3.4.1");
 		List<String> entries = classpath.resolve();
 		String runtimeDependency = "com/fasterxml/jackson/core/jackson-databind/2.18.2/jackson-databind-2.18.2.jar";
-		assertThat(entries).anyMatch(entry -> entry.contains(runtimeDependency));
+		assertThat(entries).anyMatch((entry) -> entry.contains(runtimeDependency));
 	}
 
 	@Test
 	void optionalDependencyNotResolved() {
 		MavenClasspathEntry classpath = new MavenClasspathEntry("org.springframework.data:spring-data-commons:3.2.9");
 		List<String> entries = classpath.resolve();
 		String optionalDependency = "spring-expression";
-		assertThat(entries).noneMatch(entry -> entry.contains(optionalDependency));
+		assertThat(entries).noneMatch((entry) -> entry.contains(optionalDependency));
 	}
 
 	@Test
@@ -77,8 +77,8 @@ void jdk() {
 		String configServerPartialPath = "/org/springframework/cloud/spring-cloud-config-server/" + cloudVersion
 				+ "/spring-cloud-config-server-" + cloudVersion + ".jar";
 		String springCloudContextArtifactName = "spring-cloud-context";
-		assertThat(entries).anyMatch(entry -> entry.contains(configServerPartialPath))
-				.anyMatch(entry -> entry.contains(springCloudContextArtifactName));
+		assertThat(entries).anyMatch((entry) -> entry.contains(configServerPartialPath))
+				.anyMatch((entry) -> entry.contains(springCloudContextArtifactName));
 		// .withFailMessage("Unable to find spring-boot-starter with path that contains "
 		// + configServerPartialPath)
 	}

spring-boot-testjars/src/main/java/org/springframework/experimental/boot/server/exec/CommonsExecWebServerFactoryBean.java

@@ -110,7 +110,7 @@ public CommonsExecWebServerFactoryBean systemProperties(Consumer<Map<String, Str
 	/**
 	 * If set, will start up in debug mode listening on the specified port.
 	 * @param debugPort the port to listen on or null (default) to disable debug mode.
-	 * @return
+	 * @return the {@link CommonsExecWebServerFactoryBean} for customization.
 	 */
 	public CommonsExecWebServerFactoryBean debugPort(Integer debugPort) {
 		this.debugPort = debugPort;
@@ -121,7 +121,7 @@ public CommonsExecWebServerFactoryBean debugPort(Integer debugPort) {
 	 * If {@link #debugPort(Integer)} is set, then this determines if the server should be
 	 * suspended or not.
 	 * @param suspend true if should suspend, else false.
-	 * @return
+	 * @return the {@link CommonsExecWebServerFactoryBean} for customization.
 	 */
 	public CommonsExecWebServerFactoryBean suspend(boolean suspend) {
 		this.suspend = suspend;

spring-boot-testjars/src/main/java/org/springframework/experimental/boot/server/exec/ScanningClasspathEntry.java

@@ -77,8 +77,8 @@ public List<String> resolve() {
 			this.resources = getResources();
 			this.classpath = createClasspath(this.resources);
 		}
-		return this.classpath == null ? Collections.emptyList()
-				: Arrays.asList(this.classpath.toFile().getAbsolutePath());
+		return (this.classpath != null) ? Arrays.asList(this.classpath.toFile().getAbsolutePath())
+				: Collections.emptyList();
 	}
 
 	private Path createClasspath(Resource[] resources) {

spring-boot-testjars/src/main/java/org/springframework/experimental/boot/server/exec/TempDir.java

@@ -37,8 +37,8 @@ static Path tempDir() {
 		try {
 			return Files.createTempDirectory("testjars-classpath-" + processId + "-");
 		}
-		catch (IOException e) {
-			throw new RuntimeException(e);
+		catch (IOException ex) {
+			throw new RuntimeException(ex);
 		}
 	}