diff --git a/junit-platform-console/src/main/java/org/junit/platform/console/options/TestConsoleOutputOptions.java b/junit-platform-console/src/main/java/org/junit/platform/console/options/TestConsoleOutputOptions.java
index 66574850d1a2..3e28f96d0212 100644
--- a/junit-platform-console/src/main/java/org/junit/platform/console/options/TestConsoleOutputOptions.java
+++ b/junit-platform-console/src/main/java/org/junit/platform/console/options/TestConsoleOutputOptions.java
@@ -75,18 +75,22 @@ public void setTheme(Theme theme) {
 		this.theme = theme;
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	public Path getStdoutPath() {
 		return this.stdoutPath;
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	public void setStdoutPath(Path stdoutPath) {
 		this.stdoutPath = stdoutPath;
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	public Path getStderrPath() {
 		return this.stderrPath;
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	public void setStderrPath(Path stderrPath) {
 		this.stderrPath = stderrPath;
 	}
diff --git a/junit-platform-console/src/main/java/org/junit/platform/console/tasks/ConsoleTestExecutor.java b/junit-platform-console/src/main/java/org/junit/platform/console/tasks/ConsoleTestExecutor.java
index f23873052036..5e0206e52839 100644
--- a/junit-platform-console/src/main/java/org/junit/platform/console/tasks/ConsoleTestExecutor.java
+++ b/junit-platform-console/src/main/java/org/junit/platform/console/tasks/ConsoleTestExecutor.java
@@ -206,24 +206,28 @@ private void printSummary(TestExecutionSummary summary, PrintWriter out) {
 		summary.printTo(out);
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	private boolean isSameFile(Path path1, Path path2) {
 		if (path1 == null || path2 == null)
 			return false;
 		return (path1.normalize().toAbsolutePath().equals(path2.normalize().toAbsolutePath()));
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	private void captureStdout() {
 		Map<String, String> configParameters = new HashMap<>(discoveryOptions.getConfigurationParameters());
 		configParameters.put(LauncherConstants.CAPTURE_STDOUT_PROPERTY_NAME, "true");
 		discoveryOptions.setConfigurationParameters(configParameters);
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	private void captureStderr() {
 		Map<String, String> configParameters = new HashMap<>(discoveryOptions.getConfigurationParameters());
 		configParameters.put(LauncherConstants.CAPTURE_STDERR_PROPERTY_NAME, "true");
 		discoveryOptions.setConfigurationParameters(configParameters);
 	}
 
+	@API(status = INTERNAL, since = "5.11")
 	private void captureMergedStandardStreams() {
 		Map<String, String> configParameters = new HashMap<>(discoveryOptions.getConfigurationParameters());
 		configParameters.put(LauncherConstants.CAPTURE_MERGED_STANDARD_STREAMS_PROPERTY_NAME, "true");