- do not try java things when building for docs.rs

build.rs

@@ -6,10 +6,14 @@ use retry::{delay, delay::Exponential, retry};
 fn main() -> anyhow::Result<()> {
     println!("cargo:rerun-if-changed=build.rs");
 
-    Ok(retry(
-        Exponential::from_millis(1000).map(delay::jitter).take(4),
-        deploy_java_artifacts,
-    )?)
+    if std::env::var("DOCS_RS").is_ok() {
+        Ok(retry(
+            Exponential::from_millis(1000).map(delay::jitter).take(4),
+            deploy_java_artifacts,
+        )?)
+    } else {
+        Ok(())
+    }
 }
 
 fn deploy_java_artifacts() -> Result<(), J4RsError> {