CODEWITHSUNDEEP
javafedora
Davide Sestili
Davide Sestili

Reputation: 101

String before class name in a Java exception

In this java exception I don't understand what mean the java/base and java/desktop string before the class name:

Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: /usr/lib/jvm/java-11-openjdk-11.0.ea.28-2.fc29.i386/lib/libawt_xawt.so
    at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2620)
    at java.base/java.lang.Runtime.load0(Runtime.java:767)
    at java.base/java.lang.System.load(System.java:1831)
    at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
    at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2430)
    at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2487)
    at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2684)
    at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2638)
    at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:829)
    at java.base/java.lang.System.loadLibrary(System.java:1867)
    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)

In this other exception, for example, they do not appear:

java.lang.NumberFormatException: For input string: "a"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:580)
    at java.lang.Integer.parseInt(Integer.java:615)
    at it.dsestili.jhashcode.ui.MainWindow.main(Unknown Source)

Upvotes: 1

Views: 453

Answers (1)

Arvind Kumar Avinash
Arvind Kumar Avinash

Reputation: 79540

java.base and java.desktop are module names. You can get the list of modules by using the following command:

java --list-modules

Note that module was introduced in Java 9. Therefore, the command given above will error out if you use it with an older version of Java.

Upvotes: 2

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