flutter doctor --android-licenses gives a java error

Question

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 5 more

I get this error above when running flutter doctor --android-licenses. Does anyone know why this is happening and how I can fix it? I'm already running it on the flutter console.

Answer 1

Installing Android SDK Command-line tools from Android SDK Manager did the job for me.

1. Open Tools > SDK Manager
2. From the left choose, Appearance & Behavior > System Settings > Android SDK
3. Select SDK Tools from the top menu
4. Check Android SDK Command-line tools and click 'apply'.

Alternative to step #1: WINDOWS: File > Settings (Ctrl+Alt+S) / MAC : Android Studio > Preferences

This fix works for Windows, Linux and Mac OS X.

---

If you are facing a problem in spite of the above steps, you can try upgrading your system to JDK 8. Official documentation of upgrading to JDK 8 is available here.

Answer 2

I'm a Mac user and I solve this issue.

This answer also helps Windows users and Linux users solve the issue from the user's feedback.

At the first, this is what I met for the issue
$ flutter doctor -v

And the following command is not work for my situation.
$ flutter doctor --android-licenses

The way to solve this is to install
Android SDK Command-line Tools. And how?
You just need to do it by the following two steps.

Install: Android SDK Command-line Tools

Step 1. Open SDK Manager
Top Menu -> Tools -> SDK Manager

Step 2. Install command-line tools

1. Unfold Appearance & Behavior
2. Unfold System Settings
3. Click Android SDK
4. Click tab of SDK Tools
5. Check Android SDK Command-line Tools (latest)
6. Click Apply button. Then click OK button to finish installation.

Keep going to sign android licenses.

After Android Studio finishing install, you can do the following.
$ flutter doctor --android-licenses
After saying yes many times, all android licenses have been signed.

Check by flutter doctor again.

$ flutter doctor -v

You can see that All Android licenses accepted.

Congratulations, you have completed this task!