Java openjdk 错误：无法加载库 (java awt)

Question

I tried to run a java awt program but it gives this error:

I am using lubuntu 18.04 and openjdk 11

Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: /usr/lib/jvm/java-11-openjdk-amd64/lib/libawt_xawt.so
    at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2630)
    at java.base/java.lang.Runtime.load0(Runtime.java:768)
    at java.base/java.lang.System.load(System.java:1837)
    at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
    at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2442)
    at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2498)
    at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2694)
    at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2648)
    at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:830)
    at java.base/java.lang.System.loadLibrary(System.java:1873)
    at java.desktop/java.awt.Toolkit$3.run(Toolkit.java:1399)
    at java.desktop/java.awt.Toolkit$3.run(Toolkit.java:1397)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.desktop/java.awt.Toolkit.loadLibraries(Toolkit.java:1396)
    at java.desktop/java.awt.Toolkit.<clinit>(Toolkit.java:1429)
    at java.desktop/java.awt.Component.<clinit>(Component.java:621)

this is the code I have written in my editor:

class calculator extends Frame{  
    calculator(){  
    Button b=new Button("click me");  
    b.setBounds(30,100,80,30);  
    add(b);  
    setSize(300,300); 
    setLayout(null);  
    setVisible(true); 
    }  
    
    public static void main(String args[]){  
    calculator f=new calculator();  
    }}  

Can I use java awt in openjdk 11 or do I have to separately install and integrate it?

I am not using headless!

Answer 1

You can fix run with JVM argument passing:

-Djava.awt.headless=true

Answer 2

I fixed it I installed openjdk 8 on my computer (not headless!) and reastarting my system