Thanks, that helped! The key was to use "declare namespace java...." instead of "import module namespace java....". The subtle difference was lost on my first reading of the documentation, but I now see and understand the example on the Java_Bindings page thanks to your reply. Much appreciated! On Feb 16, 2022, at 10:15 AM, Johan Mörén <johan.moren@gmail.com<mailto:johan.moren@gmail.com>> wrote: In your case, i think, java:TITLE() would work. Just trying with java.lang.Integer i got the following code to work declare namespace integer="java:java.lang.Integer"; integer:MIN_VALUE() On Wed, Feb 16, 2022 at 2:55 PM Paul L. Merchant Jr. <Paul.L.Merchant.Jr@dartmouth.edu<mailto:Paul.L.Merchant.Jr@dartmouth.edu>> wrote: Hi everyone, I'm using a Java library in XQuery in BaseX and I haven't been able to determine if there's a way to access a constant string (final static String... or even just final String...) in the Java class from XQuery. For example, if the Java class is declared as package my.module; public class MyModule { public static final String TITLE ="I'm a module!"; public String hello(final String world) { return "Hello " + world; } } The XQuery to call the "hello" method is import module namespace java = 'java:my.module.MyModule'; java:hello("World!") But is there any way to access "TITLE"? I'd like to share some constants between XQuery and Java, and I could write accessor functions for these constants, but it'd be cleaner if I didn't have to. Thanks!