diff --git a/core/deployment/src/main/java/io/quarkus/deployment/ide/Ide.java b/core/deployment/src/main/java/io/quarkus/deployment/ide/Ide.java
index 784e12616d049..b46f25e54389f 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/ide/Ide.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/ide/Ide.java
@@ -47,7 +47,8 @@ private String doGetEffectiveCommand() {
                     List<String> command = new ArrayList<>(1 + markerArgs.size());
                     command.add(defaultCommand);
                     command.addAll(markerArgs);
-                    new ProcessBuilder(command).redirectError(IdeUtil.NULL_FILE).redirectOutput(IdeUtil.NULL_FILE).start()
+                    new ProcessBuilder(command).redirectError(ProcessBuilder.Redirect.DISCARD.file())
+                            .redirectOutput(ProcessBuilder.Redirect.DISCARD.file()).start()
                             .waitFor(10,
                                     TimeUnit.SECONDS);
                     return defaultCommand;
diff --git a/core/deployment/src/main/java/io/quarkus/deployment/ide/IdeUtil.java b/core/deployment/src/main/java/io/quarkus/deployment/ide/IdeUtil.java
index f15143c1ded9f..68080e7594379 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/ide/IdeUtil.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/ide/IdeUtil.java
@@ -1,14 +1,9 @@
 package io.quarkus.deployment.ide;
 
-import java.io.File;
 import java.util.Locale;
 
 final class IdeUtil {
 
-    // copied from Java 9
-    // TODO remove when we move to Java 11
-    static final File NULL_FILE = new File(isWindows() ? "NUL" : "/dev/null");
-
     private IdeUtil() {
     }
 
diff --git a/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/JarResultBuildStep.java b/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/JarResultBuildStep.java
index f9475b4f36def..928ed20fe236a 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/JarResultBuildStep.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/JarResultBuildStep.java
@@ -7,7 +7,6 @@
 
 import java.io.BufferedInputStream;
 import java.io.BufferedWriter;
-import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -728,8 +727,8 @@ private boolean decompile(Path fernflowerJar, Path decompiledOutputDir, Path jar
             if (log.isDebugEnabled()) {
                 processBuilder.inheritIO();
             } else {
-                processBuilder.redirectError(NULL_FILE);
-                processBuilder.redirectOutput(NULL_FILE);
+                processBuilder.redirectError(ProcessBuilder.Redirect.DISCARD.file())
+                        .redirectOutput(ProcessBuilder.Redirect.DISCARD.file());
             }
             exitCode = processBuilder.start().waitFor();
         } catch (Exception e) {
@@ -1313,9 +1312,4 @@ public boolean test(Path path, BasicFileAttributes basicFileAttributes) {
             return basicFileAttributes.isRegularFile() && path.toString().endsWith(".json");
         }
     }
-
-    // copied from Java 9
-    // TODO remove when we move to Java 11
-
-    private static final File NULL_FILE = new File(SystemUtils.IS_OS_WINDOWS ? "NUL" : "/dev/null");
 }