diff --git a/src/main/java/org/apache/maven/shared/invoker/MavenCommandLineBuilder.java b/src/main/java/org/apache/maven/shared/invoker/MavenCommandLineBuilder.java
index b6f2eb5..b0e5fc8 100644
--- a/src/main/java/org/apache/maven/shared/invoker/MavenCommandLineBuilder.java
+++ b/src/main/java/org/apache/maven/shared/invoker/MavenCommandLineBuilder.java
@@ -185,9 +185,7 @@ protected void setToolchainsLocation(InvocationRequest request, Commandline cli)
      * @param cli a {@link org.apache.maven.shared.utils.cli.Commandline} object.
      */
     protected void setShellEnvironment(InvocationRequest request, Commandline cli) {
-        if (request.isShellEnvironmentInherited()) {
-            cli.addSystemEnvironment();
-        }
+        cli.setShellEnvironmentInherited(request.isShellEnvironmentInherited());
 
         if (request.getJavaHome() != null) {
             cli.addEnvironment("JAVA_HOME", request.getJavaHome().getAbsolutePath());
@@ -213,7 +211,7 @@ protected void setProfiles(InvocationRequest request, Commandline cli) {
 
         if ((profiles != null) && !profiles.isEmpty()) {
             cli.createArg().setValue("-P");
-            cli.createArg().setValue(StringUtils.join(profiles.iterator(), ","));
+            cli.createArg().setValue(String.join(",", profiles));
         }
     }
 
@@ -229,7 +227,7 @@ protected void setGoals(InvocationRequest request, Commandline cli) throws Comma
 
         if ((goals != null) && !goals.isEmpty()) {
             try {
-                cli.createArg().setLine(StringUtils.join(goals.iterator(), " "));
+                cli.createArg().setLine(String.join(" ", goals));
             } catch (CommandLineException e) {
                 throw new CommandLineConfigurationException("Problem setting goals", e);
             }
@@ -381,7 +379,7 @@ protected void setReactorBehavior(InvocationRequest request, Commandline cli) {
         List<String> projectList = request.getProjects();
         if (projectList != null) {
             cli.createArg().setValue("-pl");
-            cli.createArg().setValue(StringUtils.join(projectList.iterator(), ","));
+            cli.createArg().setValue(String.join(",", projectList));
 
             if (request.isAlsoMake()) {
                 cli.createArg().setValue("-am");
diff --git a/src/test/java/org/apache/maven/shared/invoker/DefaultInvokerTest.java b/src/test/java/org/apache/maven/shared/invoker/DefaultInvokerTest.java
index e23e804..978e0ed 100644
--- a/src/test/java/org/apache/maven/shared/invoker/DefaultInvokerTest.java
+++ b/src/test/java/org/apache/maven/shared/invoker/DefaultInvokerTest.java
@@ -39,7 +39,7 @@ public class DefaultInvokerTest {
     private InvocationRequest request = new DefaultInvocationRequest();
 
     @BeforeEach
-    public void setUp() throws Exception {
+    public void setUp() {
         request.setDebug(true);
         request.setProperties(getProperties());
     }
@@ -172,12 +172,7 @@ public void testMavenWrapperInProject() throws Exception {
         request.setMavenExecutable(new File("./mvnw"));
 
         final StringBuilder outlines = new StringBuilder();
-        request.setOutputHandler(new InvocationOutputHandler() {
-            @Override
-            public void consumeLine(String line) {
-                outlines.append(line);
-            }
-        });
+        request.setOutputHandler(outlines::append);
 
         InvocationResult result = invoker.execute(request);
 
diff --git a/src/test/java/org/apache/maven/shared/invoker/MavenCommandLineBuilderTest.java b/src/test/java/org/apache/maven/shared/invoker/MavenCommandLineBuilderTest.java
index 00a41d4..ed26f8e 100644
--- a/src/test/java/org/apache/maven/shared/invoker/MavenCommandLineBuilderTest.java
+++ b/src/test/java/org/apache/maven/shared/invoker/MavenCommandLineBuilderTest.java
@@ -37,13 +37,15 @@
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledOnOs;
+import org.junit.jupiter.api.condition.OS;
 import org.junit.jupiter.api.io.TempDir;
 
 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
-import static org.junit.jupiter.api.Assertions.fail;
 import static org.junit.jupiter.api.Assumptions.assumeTrue;
 
 public class MavenCommandLineBuilderTest {
@@ -75,21 +77,15 @@ public void testShouldFailToSetLocalRepoLocationGloballyWhenItIsAFile() {
 
         mclb.setLocalRepositoryDirectory(lrd);
 
-        try {
-            mclb.setLocalRepository(newRequest(), cli);
-            fail("Should not set local repo location to point to a file.");
-        } catch (IllegalArgumentException expected) {
-        }
+        InvocationRequest request = newRequest();
+        assertThrows(IllegalArgumentException.class, () -> mclb.setLocalRepository(request, cli));
     }
 
     @Test
     public void testShouldFailToSetLocalRepoLocationFromRequestWhenItIsAFile() {
         InvocationRequest request = newRequest().setLocalRepositoryDirectory(lrd);
-        try {
-            mclb.setLocalRepository(request, cli);
-            fail("Should not set local repo location to point to a file.");
-        } catch (IllegalArgumentException expected) {
-        }
+
+        assertThrows(IllegalArgumentException.class, () -> mclb.setLocalRepository(request, cli));
     }
 
     @Test
@@ -207,11 +203,7 @@ private File setupTempMavenHomeIfMissing(boolean forceDummy) throws Exception {
     public void testShouldFailIfLoggerSetToNull() {
         mclb.setLogger(null);
 
-        try {
-            mclb.checkRequiredState();
-            fail("Should not allow execution to proceed when logger is missing.");
-        } catch (IllegalStateException expected) {
-        }
+        assertThrows(IllegalStateException.class, () -> mclb.checkRequiredState());
     }
 
     @Test
@@ -236,6 +228,7 @@ public void testShouldFindDummyMavenExecutable() throws Exception {
     }
 
     @Test
+    @EnabledOnOs(OS.WINDOWS)
     public void testShouldFindDummyPS1MavenExecutable() throws Exception {
         File dummyMavenHomeBin = Files.createDirectories(temporaryFolder
                         .resolve("invoker-tests")
@@ -243,14 +236,11 @@ public void testShouldFindDummyPS1MavenExecutable() throws Exception {
                         .resolve("bin"))
                 .toFile();
 
-        File check;
-        if (Os.isFamily(Os.FAMILY_WINDOWS)) {
-            check = createDummyFile(dummyMavenHomeBin, "mvn.ps1");
-            mclb.setMavenHome(dummyMavenHomeBin.getParentFile());
-            mclb.setupMavenExecutable(newRequest());
+        File check = createDummyFile(dummyMavenHomeBin, "mvn.ps1");
+        mclb.setMavenHome(dummyMavenHomeBin.getParentFile());
+        mclb.setupMavenExecutable(newRequest());
 
-            assertEquals(check.getCanonicalPath(), mclb.getMavenExecutable().getCanonicalPath());
-        }
+        assertEquals(check.getCanonicalPath(), mclb.getMavenExecutable().getCanonicalPath());
     }
 
     @Test