From 46f323aff0107f4455d455ee9bf60c6c95d6d1e6 Mon Sep 17 00:00:00 2001
From: Alen Turkovic <alturkovic@gmail.com>
Date: Fri, 18 Sep 2020 18:50:39 +0200
Subject: [PATCH] Unmapped polymorphic elements will no longer be added to
 collections as nulls

---
 pom.xml                                                      | 2 +-
 .../java/com/github/alturkovic/asn/decoder/BerDecoder.java   | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/pom.xml b/pom.xml
index 769aa35..bc8625a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>com.github.alturkovic</groupId>
   <artifactId>asn-parser</artifactId>
-  <version>1.4.0</version>
+  <version>1.4.1</version>
 
   <name>asn-parser</name>
   <description>ASN.1 Decoding/Encoding</description>
diff --git a/src/main/java/com/github/alturkovic/asn/decoder/BerDecoder.java b/src/main/java/com/github/alturkovic/asn/decoder/BerDecoder.java
index 685b337..6977914 100644
--- a/src/main/java/com/github/alturkovic/asn/decoder/BerDecoder.java
+++ b/src/main/java/com/github/alturkovic/asn/decoder/BerDecoder.java
@@ -157,7 +157,10 @@ private void decodeCollection(final Collection<Object> collection, final byte[]
           collection.add(decodePolymorphic(asnClassDescription, elementBerData.toTlv()));
         } else if (taggedField.getElementTag().equals(parsedElementTag)) {
           if (taggedField.isStructured()) {
-            collection.add(decodeStructure(taggedField.getType(), elementBerData.toTlv()));
+            final Object decoded = decodeStructure(taggedField.getType(), elementBerData.toTlv());
+            if (decoded != null) {
+              collection.add(decoded);
+            }
           } else {
             //noinspection unchecked
             final var asnConverter = loadAsnConverterFromCache((Class<? extends AsnConverter<byte[], Object>>) taggedField.getConverter());