Failed to run sdkmanager --list with Java 9

With the help of this answer, I successfully solved the problem.

We are going to apply a fix in sdkmanager. It is a shell script. It is located at $android_sdk/tools/bin, where $android_sdk is where you unzipped the Android SDK.

1. Open sdkmanager in your favorite editor.

2. Locate the line which sets the DEFAULT_JVM_OPTSvariable. In my copy, it is at line 31:

   DEFAULT_JVM_OPTS='"-Dcom.android.sdklib.toolsdir=$APP_HOME"'
   

3. Append the following options to the variable: -XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee. Please pay attention to the quotes. In my copy, the line becomes:

   DEFAULT_JVM_OPTS='"-Dcom.android.sdklib.toolsdir=$APP_HOME" -XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'
   

4. Save the file and quit the editor.
5. Run the command again.

Here is the result:

$ sdkmanager --list
Installed packages:
  Path    | Version | Description              | Location
  ------- | ------- | -------                  | ------- 
  tools   | 26.0.1  | Android SDK Tools 26.0.1 | tools/  

Available Packages:
  Path                              | Version      | Description                      
  -------                           | -------      | -------                          
  add-ons;addon-g..._apis-google-15 | 3            | Google APIs                      
  add-ons;addon-g..._apis-google-16 | 4            | Google APIs                      
  add-ons;addon-g..._apis-google-17 | 4            | Google APIs                      
  add-ons;addon-g..._apis-google-18 | 4            | Google APIs                      
  add-ons;addon-g..._apis-google-19 | 20           | Google APIs                      
  add-ons;addon-g..._apis-google-21 | 1            | Google APIs                      
  add-ons;addon-g..._apis-google-22 | 1            | Google APIs                      
  add-ons;addon-g..._apis-google-23 | 1            | Google APIs                      
  add-ons;addon-g..._apis-google-24 | 1            | Google APIs
...

Hola! It works!

-- Edit: 2017-11-07 --

Please note that you may need to apply the fix above again after running sdkmanager --update, since the sdkmanager shell script may be overridden if the tools package is updated.

Related Answers

• https://stackoverflow.com/a/43574427/142239
  • @andy-guibert pointed out the necessary options to make this work. He also briefly what those mysterious options mean.

The accepted answer is outdated as of February 2019. Here's an answer that will work until sdkmanager migrates to a newer version of Java. But by then, you won't have this problem anymore.

OpenJDK 10 was superseeded by OpenJDK 11, which doesn't implement java.se.ee at all. This means that the hack of adding --add-modules java.se.ee doesn't do anything anymore. It also means that OpenJDK 10 will be automatically removed from your system and replaced with OpenJDK 11 the next time you update, if your updates are configured properly.

Modify sdkmanager to use Java 8 by setting JAVA_HOME inside sdkmanager to a Java 8 installation. It's, by default, at ~/Android/Sdk/tools/bin/sdkmanager.

# Add default JVM options here. You can also use JAVA_OPTS and SDKMANAGER_OPTS to pass JVM options $
JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
DEFAULT_JVM_OPTS='"-Dcom.android.sdklib.toolsdir=$APP_HOME" -XX:+IgnoreUnrecognizedVMOptions'

@rem Add default JVM options here. You can also use JAVA_OPTS and SDKMANAGER_OPTS to pass JVM options to this script.
set JAVA_HOME="C:\ProgramData\scoop\apps\android-studio\current\jre"
set DEFAULT_JVM_OPTS="-Dcom.android.sdklib.toolsdir=%~dp0\.."

This way, you can keep using a sane and maintained version of Java on your system while simultaneously using sdkmanager.

# Java
export JAVA_HOME=/usr/lib/jvm/default-java

And now I've got some pipelines to repair.