X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fldk%2Fstructs%2FSha256.java;fp=src%2Fmain%2Fjava%2Forg%2Fldk%2Fstructs%2FSha256.java;h=76c110a7372691e2cf37777bdd9c8900dc4a99fc;hb=ba1af51214a8ea2de62b84cd23b6145173c71752;hp=b630026ac3d852e3426f13aa809d4efcaaa5dcdb;hpb=8cf3b60169033bf14824aeed1197f11e232cba0a;p=ldk-java

diff --git a/src/main/java/org/ldk/structs/Sha256.java b/src/main/java/org/ldk/structs/Sha256.java
index b630026a..76c110a7 100644
--- a/src/main/java/org/ldk/structs/Sha256.java
+++ b/src/main/java/org/ldk/structs/Sha256.java
@@ -4,6 +4,7 @@ import org.ldk.impl.bindings;
 import org.ldk.enums.*;
 import org.ldk.util.*;
 import java.util.Arrays;
+import javax.annotation.Nullable;
 
 
 /**
@@ -34,6 +35,7 @@ public class Sha256 extends CommonBase {
 	 */
 	public Sha256 clone() {
 		long ret = bindings.Sha256_clone(this.ptr);
+		if (ret < 1024) { return null; }
 		Sha256 ret_hu_conv = new Sha256(null, ret);
 		ret_hu_conv.ptrs_to.add(this);
 		return ret_hu_conv;