diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 70053bdeb47eb..5ec406b597d59 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -5424,32 +5424,62 @@ public class UserManagerService extends IUserManager.Stub {
     private static final String ARG_CRITICAL_ONLY = "--critical-only";
     private static final String ARG_MODE = "--mode";
 
-    private int onShellCommand(Shell shell, String cmd) {
+    private final class Shell extends ShellCommand {
+
+    @Override
+    public void onHelp() {
+        final PrintWriter pw = getOutPrintWriter();
+        pw.printf("User manager (user) commands:\n");
+
+        pw.printf("%s%s\n", PREFIX_HELP_COMMAND, CMD_HELP);
+        pw.printf("%sPrints this help text.\n\n", PREFIX_HELP_DESCRIPTION);
+
+        pw.printf("%s%s [%s] [%s]\n", PREFIX_HELP_COMMAND, CMD_LIST, ARG_V, ARG_ALL);
+        pw.printf("%sPrints all users on the system.\n\n", PREFIX_HELP_DESCRIPTION);
+
+        pw.printf("%s%s [%s | %s] [%s] [%s MODE]\n", PREFIX_HELP_COMMAND,
+                CMD_REPORT_SYSTEM_USER_PACKAGE_ALLOWLIST_PROBLEMS,
+                ARG_V, ARG_VERBOSE, ARG_CRITICAL_ONLY, ARG_MODE);
+
+        pw.printf("%sReports all issues on user-type package allowlist XML files. Options:\n",
+                PREFIX_HELP_DESCRIPTION);
+        pw.printf("%s%s | %s: shows extra info, like number of issues\n",
+                PREFIX_HELP_DESCRIPTION, ARG_V, ARG_VERBOSE);
+        pw.printf("%s%s: show only critical issues, excluding warnings\n",
+                PREFIX_HELP_DESCRIPTION, ARG_CRITICAL_ONLY);
+        pw.printf("%s%s MODE: shows what errors would be if device used mode MODE\n"
+                + "%s(where MODE is the allowlist mode integer as defined by "
+                + "config_userTypePackageWhitelistMode)\n\n",
+                PREFIX_HELP_DESCRIPTION, ARG_MODE, PREFIX_HELP_DESCRIPTION_EXTRA_LINES);
+    }
+
+    @Override
+    public int onCommand(String cmd) {
         if (cmd == null) {
-            return shell.handleDefaultCommands(cmd);
+            return handleDefaultCommands(cmd);
         }
 
-        final PrintWriter pw = shell.getOutPrintWriter();
         try {
             switch(cmd) {
                 case CMD_LIST:
-                    return runList(pw, shell);
+                    return runList();
                 case CMD_REPORT_SYSTEM_USER_PACKAGE_ALLOWLIST_PROBLEMS:
-                    return runReportPackageWhitelistProblems(pw, shell);
+                    return runReportPackageAllowlistProblems();
                 default:
-                    return shell.handleDefaultCommands(cmd);
+                    return handleDefaultCommands(cmd);
             }
         } catch (RemoteException e) {
-            pw.println("Remote exception: " + e);
+            getOutPrintWriter().println("Remote exception: " + e);
         }
         return -1;
     }
 
-    private int runList(PrintWriter pw, Shell shell) throws RemoteException {
+    private int runList() throws RemoteException {
+        final PrintWriter pw = getOutPrintWriter();
         boolean all = false;
         boolean verbose = false;
         String opt;
-        while ((opt = shell.getNextOption()) != null) {
+        while ((opt = getNextOption()) != null) {
             switch (opt) {
                 case ARG_V:
                     verbose = true;
@@ -5528,12 +5558,13 @@ public class UserManagerService extends IUserManager.Stub {
         }
     }
 
-    private int runReportPackageWhitelistProblems(PrintWriter pw, Shell shell) {
+    private int runReportPackageAllowlistProblems() {
+        final PrintWriter pw = getOutPrintWriter();
         boolean verbose = false;
         boolean criticalOnly = false;
         int mode = UserSystemPackageInstaller.USER_TYPE_PACKAGE_WHITELIST_MODE_NONE;
         String opt;
-        while ((opt = shell.getNextOption()) != null) {
+        while ((opt = getNextOption()) != null) {
             switch (opt) {
                 case ARG_V:
                 case ARG_VERBOSE:
@@ -5543,7 +5574,7 @@ public class UserManagerService extends IUserManager.Stub {
                     criticalOnly = true;
                     break;
                 case ARG_MODE:
-                    mode = Integer.parseInt(shell.getNextArgRequired());
+                    mode = Integer.parseInt(getNextArgRequired());
                     break;
                 default:
                     pw.println("Invalid option: " + opt);
@@ -5551,15 +5582,17 @@ public class UserManagerService extends IUserManager.Stub {
             }
         }
 
-        Slog.d(LOG_TAG, "runReportPackageWhitelistProblems(): verbose=" + verbose
+        Slog.d(LOG_TAG, "runReportPackageAllowlistProblems(): verbose=" + verbose
                 + ", criticalOnly=" + criticalOnly
                 + ", mode=" + UserSystemPackageInstaller.modeToString(mode));
 
         try (IndentingPrintWriter ipw = new IndentingPrintWriter(pw, "  ")) {
-            mSystemPackageInstaller.dumpPackageWhitelistProblems(ipw, mode, verbose, criticalOnly);
+            mSystemPackageInstaller.dumpPackageWhitelistProblems(ipw, mode, verbose,
+                    criticalOnly);
         }
         return 0;
     }
+    }
 
     @Override
     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
@@ -6254,40 +6287,6 @@ public class UserManagerService extends IUserManager.Stub {
         }
     }
 
-    private class Shell extends ShellCommand {
-        @Override
-        public int onCommand(String cmd) {
-            return onShellCommand(this, cmd);
-        }
-
-        @Override
-        public void onHelp() {
-            final PrintWriter pw = getOutPrintWriter();
-            pw.printf("User manager (user) commands:\n");
-
-            pw.printf("%s%s\n", PREFIX_HELP_COMMAND, CMD_HELP);
-            pw.printf("%sPrints this help text.\n\n", PREFIX_HELP_DESCRIPTION);
-
-            pw.printf("%s%s [%s] [%s]\n", PREFIX_HELP_COMMAND, CMD_LIST, ARG_V, ARG_ALL);
-            pw.printf("%sPrints all users on the system.\n\n", PREFIX_HELP_DESCRIPTION);
-
-            pw.printf("%s%s [%s | %s] [%s] [%s MODE]\n", PREFIX_HELP_COMMAND,
-                    CMD_REPORT_SYSTEM_USER_PACKAGE_ALLOWLIST_PROBLEMS,
-                    ARG_V, ARG_VERBOSE, ARG_CRITICAL_ONLY, ARG_MODE);
-
-            pw.printf("%sReports all issues on user-type package allowlist XML files. Options:\n",
-                    PREFIX_HELP_DESCRIPTION);
-            pw.printf("%s%s | %s: shows extra info, like number of issues\n",
-                    PREFIX_HELP_DESCRIPTION, ARG_V, ARG_VERBOSE);
-            pw.printf("%s%s: show only critical issues, excluding warnings\n",
-                    PREFIX_HELP_DESCRIPTION, ARG_CRITICAL_ONLY);
-            pw.printf("%s%s MODE: shows what errors would be if device used mode MODE\n"
-                    + "%s(where MODE is the allowlist mode integer as defined by "
-                    + "config_userTypePackageWhitelistMode)\n\n",
-                    PREFIX_HELP_DESCRIPTION, ARG_MODE, PREFIX_HELP_DESCRIPTION_EXTRA_LINES);
-        }
-    }
-
     private static void debug(String message) {
         Slog.d(LOG_TAG, message
                 + (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, "  ") : ""));