Properly handle java refs in traits returning traits

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

diff --git a/src/main/java/org/ldk/structs/Filter.java b/src/main/java/org/ldk/structs/Filter.java
index 6ec794e6479b99070ba00eef14f95b9f3130c6a9..648823106a4e607e1f169366b3259b9ed73fea89 100644 (file)
--- a/src/main/java/org/ldk/structs/Filter.java
+++ b/src/main/java/org/ldk/structs/Filter.java
@@ -23,8 +23,10 @@ public class Filter extends CommonBase {
                void register_tx(byte[] txid, byte[] script_pubkey);
                void register_output(OutPoint outpoint, byte[] script_pubkey);
        }
-       public Filter(FilterInterface arg) {
-               this(new bindings.LDKFilter() {
+       private static class LDKFilterHolder { Filter held; }
+       public static Filter new_impl(FilterInterface arg) {
+               final LDKFilterHolder impl_holder = new LDKFilterHolder();
+               impl_holder.held = new Filter(new bindings.LDKFilter() {
                        @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
                                arg.register_tx(txid, script_pubkey);
                        }
@@ -33,6 +35,7 @@ public class Filter extends CommonBase {
                                arg.register_output(outpoint_hu_conv, script_pubkey);
                        }
                });
+               return impl_holder.held;
        }
        public void register_tx(byte[] txid, byte[] script_pubkey) {
                bindings.Filter_register_tx(this.ptr, txid, script_pubkey);