diff --git a/java_tools/ts_plugin/src/main/java/com/rusefi/ts_plugin/RemoteTab.java b/java_tools/ts_plugin/src/main/java/com/rusefi/ts_plugin/RemoteTab.java
index 384dc59adf..8e048270b1 100644
--- a/java_tools/ts_plugin/src/main/java/com/rusefi/ts_plugin/RemoteTab.java
+++ b/java_tools/ts_plugin/src/main/java/com/rusefi/ts_plugin/RemoteTab.java
@@ -29,7 +29,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import static com.rusefi.ui.storage.PersistentConfiguration.getConfig;
 
 /**
- * see RemoteTabSandbox
+ * @see RemoteTabSandbox
  */
 public class RemoteTab {
     private static final String APPLICATION_PORT = "application_port";
diff --git a/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/PluginBodySandbox.java b/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/PluginBodySandbox.java
index aa8dc15c1b..c7fdacc9be 100644
--- a/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/PluginBodySandbox.java
+++ b/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/PluginBodySandbox.java
@@ -14,7 +14,9 @@ import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 /**
- * @see PluginLauncherSandbox
+ * Sandbox for plugin body
+ *
+ * @see PluginLauncherSandbox for plugin auto-update launcher
  */
 public class PluginBodySandbox {
 
diff --git a/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/RemoteTabSandbox.java b/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/RemoteTabSandbox.java
index f2f8ee4b61..12facbfd40 100644
--- a/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/RemoteTabSandbox.java
+++ b/java_tools/ts_plugin/src/test/java/com/rusefi/ts_plugin/RemoteTabSandbox.java
@@ -2,6 +2,9 @@ package com.rusefi.ts_plugin;
 
 import com.rusefi.ui.util.FrameHelper;
 
+/**
+ * @see PluginBodySandbox
+ */
 public class RemoteTabSandbox {
     public static void main(String[] args) {
         new FrameHelper().showFrame(new RemoteTab().getContent());
diff --git a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/PluginLauncherSandbox.java b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/PluginLauncherSandbox.java
index 7805fbca63..61f375c8bb 100644
--- a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/PluginLauncherSandbox.java
+++ b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/PluginLauncherSandbox.java
@@ -2,6 +2,9 @@ package com.rusefi.ts_plugin;
 
 import javax.swing.*;
 
+/**
+ * Sandbox for {@link TsPluginLauncher}
+ */
 public class PluginLauncherSandbox {
     public static void main(String[] args) {
         JFrame frame = new JFrame();
diff --git a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/TsPluginLauncher.java b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/TsPluginLauncher.java
index 0f47aca0a2..c07cab8391 100644
--- a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/TsPluginLauncher.java
+++ b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/TsPluginLauncher.java
@@ -7,7 +7,12 @@ import org.putgemin.VerticalFlowLayout;
 import javax.swing.*;
 
 /**
+ * This class is the more permanent part of the plug, it's responsible for refreshing and launcher PluginEntry via reflections.
+ * which downloads the main more volatile UI part (PluginEntry)
+ *
  * by the way TS installs stuff into %user%\.efianalytics\TunerStudio\plugins folder
+ * @see PluginLauncherSandbox sandbox for this
+ * see PluginEntry
  */
 public class TsPluginLauncher implements ApplicationPlugin {
     public static final int BUILD_VERSION = 3;
diff --git a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/Updater.java b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/Updater.java
index 3fdb229e5d..2a91be9391 100644
--- a/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/Updater.java
+++ b/java_tools/ts_plugin_launcher/src/com/rusefi/ts_plugin/Updater.java
@@ -20,9 +20,13 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 import static com.rusefi.ts_plugin.TsPluginLauncher.VERSION;
 
+/**
+ * Download fresh copy of {@link #PLUGIN_BODY_JAR} and launch {@link #PLUGIN_ENTRY_CLASS} via reflection.
+ */
 public class Updater {
+    private static final String PLUGIN_ENTRY_CLASS = "com.rusefi.ts_plugin.PluginEntry";
     private static final String PLUGIN_BODY_JAR = "rusefi_plugin_body.jar";
-    public static final String LOCAL_JAR_FILE_NAME = FileUtil.RUSEFI_SETTINGS_FOLDER + File.separator + PLUGIN_BODY_JAR;
+    private static final String LOCAL_JAR_FILE_NAME = FileUtil.RUSEFI_SETTINGS_FOLDER + File.separator + PLUGIN_BODY_JAR;
     private static final String TITLE = "rusEFI plugin installer " + VERSION;
 
     private final JPanel content = new JPanel(new VerticalFlowLayout());
@@ -187,7 +191,7 @@ public class Updater {
 
     private static Class getPluginClass() throws MalformedURLException, ClassNotFoundException {
         URLClassLoader jarClassLoader = AutoupdateUtil.getClassLoaderByJar(LOCAL_JAR_FILE_NAME);
-        return Class.forName("com.rusefi.ts_plugin.PluginEntry", true, jarClassLoader);
+        return Class.forName(PLUGIN_ENTRY_CLASS, true, jarClassLoader);
     }
 
     private void replaceWith(TsPluginBody instance) {