Can't find resource for bundle sun.security.util.Resources, key keytool.error

[GergesShamon]

When to use this command:
dalvikvm ^
-cp keytool.dex ^
main ^
-genkeypair ^
-keystore keystore.jks ^
-alias androidkey ^
-validity 10000 ^
-keyalg RSA ^
-keysize 2048 ^
-storepass android ^
-keypass android

This is showing me an error:
Android keytool 2019 ported by Yutaka Aoki.

Exception in thread "main" java.util.MissingResourceException: Can't find resource for bundle sun.security.util.Resources, key keytool.error.
at java.util.ResourceBundle.getObject(ResourceBundle.java:448)
at java.util.ResourceBundle.getString(ResourceBundle.java:405)
at sun.security.tools.KeyTool.run(KeyTool.java:343)
at sun.security.tools.KeyTool.main(KeyTool.java:333)
at main.main(main.java:5)

[YutakaAoki]

[1] Overview and Causes
Line 343 of KeyTool.java is
System.out.println(rb.getString("keytool.error.")+e);
And in the rb.getString("keytool.error."), the error occured,
which is caused by the absence of a resource named "keytool.error".
And the reason for it is that the preceding
parseArgs(args);
or
doCommands(out);
threw an exception.

In other words, when the error occurred, the code tried to display the cause of the error, but second error occurred in that code
.
Therefore, the double error has made it impossible to display the cause of the first error.

If you rewrite A as B, you will be able to display the cause of exception e.

System.out.println(rb.getString("keytool.error.") + e); // A, old line 343
--->
System.out.println("keytool error: " + e); // B, new "line 343"

• Note that ^ is the line concatenation operator in the BAT file, so when writing directly in the shell, change it to a space.

(KeyTool.java)
private static final java.util.ResourceBundle rb =
java.util.ResourceBundle.getBundle("sun.security.util.Resources");
private void run(String[] args, PrintStream out) throws Exception {
try {
parseArgs(args);
if (command != null) {
doCommands(out);
}
} catch (Exception e) {
System.out.println(rb.getString("keytool.error.") + e); // line 343
if (verbose) {
e.printStackTrace(System.out);
}
if (!debug) {
System.exit(1);
} else {
throw e;
}

[2] Hint
https://github.com/openjdk-mirror/jdk7u-jdk/blob/master/src/share/classes/sun/security/util/Resources.java

package sun.security.util;

/**

• This class represents the ResourceBundle

• for javax.security.auth and sun.security.

*/
public class Resources extends java.util.ListResourceBundle {

private static final Object[][] contents = {
...

// keytool: Running part
{"keytool.error.", "keytool error: "},
{"Illegal.option.", "Illegal option: "},
...
};
....
}

[3] The same code as [2] is here in local source :
https://github.com/YutakaAoki/KeyTool/blob/master/src/sun/security/util/Resources.java