Properly handle java refs in traits returning traits

[ldk-java] / src / main / java / org / ldk / structs / FeeEstimator.java

diff --git a/src/main/java/org/ldk/structs/FeeEstimator.java b/src/main/java/org/ldk/structs/FeeEstimator.java
index dd7c05f28434b1f2c5e5129a688bdda9754c1d01..910edae72d6ab5cc0ad9c6a3cedc3514252fb299 100644 (file)
--- a/src/main/java/org/ldk/structs/FeeEstimator.java
+++ b/src/main/java/org/ldk/structs/FeeEstimator.java
@@ -22,13 +22,16 @@ public class FeeEstimator extends CommonBase {
        public static interface FeeEstimatorInterface {
                int get_est_sat_per_1000_weight(LDKConfirmationTarget confirmation_target);
        }
-       public FeeEstimator(FeeEstimatorInterface arg) {
-               this(new bindings.LDKFeeEstimator() {
+       private static class LDKFeeEstimatorHolder { FeeEstimator held; }
+       public static FeeEstimator new_impl(FeeEstimatorInterface arg) {
+               final LDKFeeEstimatorHolder impl_holder = new LDKFeeEstimatorHolder();
+               impl_holder.held = new FeeEstimator(new bindings.LDKFeeEstimator() {
                        @Override public int get_est_sat_per_1000_weight(LDKConfirmationTarget confirmation_target) {
                                int ret = arg.get_est_sat_per_1000_weight(confirmation_target);
                                return ret;
                        }
                });
+               return impl_holder.held;
        }
        public int get_est_sat_per_1000_weight(LDKConfirmationTarget confirmation_target) {
                int ret = bindings.FeeEstimator_get_est_sat_per_1000_weight(this.ptr, confirmation_target);