diff --git a/pom.xml b/pom.xml
index 935ee899..a204db2a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
   <description>Aviation weather message conversions - IWXXM module</description>
   <groupId>fi.fmi.avi.converter</groupId>
   <artifactId>fmi-avi-messageconverter-iwxxm</artifactId>
-  <version>0.11.1.K-SNAPSHOT</version>
+  <version>0.11.2.K-SNAPSHOT</version>
 
   <scm>
     <connection>${scm-url}</connection>
@@ -83,7 +83,7 @@
     <dependency>
       <groupId>fi.fmi.avi.converter</groupId>
       <artifactId>fmi-avi-messageconverter</artifactId>
-      <version>3.6.1-SNAPSHOT</version>
+      <version>3.6.1.K-SNAPSHOT</version>
     </dependency>
 
     <dependency>
@@ -111,7 +111,26 @@
       <artifactId>JAXBNamespacePrefixMapper</artifactId>
       <version>2.2.4</version>
     </dependency>
-    
+
+    <dependency>
+      <groupId>com.sun.xml.bind</groupId>
+      <artifactId>jaxb-core</artifactId>
+      <scope>compile</scope>
+      <version>2.3.0.1</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.xml.bind</groupId>
+      <artifactId>jaxb-impl</artifactId>
+      <scope>compile</scope>
+      <version>2.3.0.1</version>
+    </dependency>
+    <dependency>
+      <groupId>javax.xml.bind</groupId>
+      <artifactId>jaxb-api</artifactId>
+      <scope>compile</scope>
+      <version>2.4.0-b180830.0359</version>
+    </dependency>
+
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
diff --git a/src/main/java/fi/fmi/avi/converter/iwxxm/AbstractIWXXMSerializer.java b/src/main/java/fi/fmi/avi/converter/iwxxm/AbstractIWXXMSerializer.java
index 8e5953f1..fca34561 100644
--- a/src/main/java/fi/fmi/avi/converter/iwxxm/AbstractIWXXMSerializer.java
+++ b/src/main/java/fi/fmi/avi/converter/iwxxm/AbstractIWXXMSerializer.java
@@ -87,7 +87,7 @@ protected Document renderXMLDocument(final Object input, final ConversionHints h
                     "http://icao.int/iwxxm/2.1 http://schemas.wmo.int/iwxxm/2.1.1/iwxxm.xsd http://def.wmo.int/metce/2013 "
                             + "http://schemas.wmo.int/metce/1.2/metce.xsd http://def.wmo.int/collect/2014 http://schemas.wmo.int/collect/1.2/collect.xsd "
                             + "http://www.opengis.net/samplingSpatial/2.0 http://schemas.opengis.net/samplingSpatial/2.0/spatialSamplingFeature.xsd");
-            marshaller.setProperty("com.sun.xml.internal.bind.namespacePrefixMapper", new IWXXMNamespaceContext());
+            marshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper", new IWXXMNamespaceContext());
             marshaller.marshal(wrap(input, (Class<Object>) input.getClass()), sw);
             return asCleanedUpXML(sw.toString(), hints);
         } catch (final JAXBException e) {
diff --git a/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMConverterBase.java b/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMConverterBase.java
index 52162f5a..bc10804e 100644
--- a/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMConverterBase.java
+++ b/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMConverterBase.java
@@ -196,7 +196,7 @@ protected static <S> void validateDocument(final S input, final Class<S> clz, fi
             final Marshaller marshaller = getJAXBContext().createMarshaller();
             marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
             marshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION, schemaLocation);
-            marshaller.setProperty("com.sun.xml.internal.bind.namespacePrefixMapper", new IWXXMNamespaceContext());
+            marshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper", new IWXXMNamespaceContext());
 
             marshaller.setSchema(schemaFactory.newSchema(schemaSources));
             marshaller.setEventHandler(eventHandler);
diff --git a/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMNamespaceContext.java b/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMNamespaceContext.java
index 1e5387dd..627071e7 100644
--- a/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMNamespaceContext.java
+++ b/src/main/java/fi/fmi/avi/converter/iwxxm/IWXXMNamespaceContext.java
@@ -7,7 +7,7 @@
 
 import javax.xml.namespace.NamespaceContext;
 
-import com.sun.xml.internal.bind.marshaller.NamespacePrefixMapper;
+import com.sun.xml.bind.marshaller.NamespacePrefixMapper;
 
 
 /**
diff --git a/src/main/java/fi/fmi/avi/converter/iwxxm/airmet/AbstractAIRMETIWXXMSerializer.java b/src/main/java/fi/fmi/avi/converter/iwxxm/airmet/AbstractAIRMETIWXXMSerializer.java
index 6246fa15..8fe493fc 100644
--- a/src/main/java/fi/fmi/avi/converter/iwxxm/airmet/AbstractAIRMETIWXXMSerializer.java
+++ b/src/main/java/fi/fmi/avi/converter/iwxxm/airmet/AbstractAIRMETIWXXMSerializer.java
@@ -218,10 +218,8 @@ public ConversionResult<T> convertMessage(final AIRMET input, final ConversionHi
 
             if (eventHandler.errorsFound()) {
                 result.setStatus(Status.FAIL);
-                System.err.println("FAILED in eventhandler");
                 for (ConversionIssue iss: eventHandler.getResult().getConversionIssues()) {
                     System.err.println("Validation issue: "+iss.getMessage());
-                    result.addIssue(new ConversionIssue(ConversionIssue.Severity.ERROR, ConversionIssue.Type.OTHER, iss.getMessage()));
                 }
             } else {
                 result.setConvertedMessage(this.render(airmet, hints));
diff --git a/src/main/java/fi/fmi/avi/converter/iwxxm/sigmet/AbstractSIGMETIWXXMSerializer.java b/src/main/java/fi/fmi/avi/converter/iwxxm/sigmet/AbstractSIGMETIWXXMSerializer.java
index 487bffcf..76027eab 100644
--- a/src/main/java/fi/fmi/avi/converter/iwxxm/sigmet/AbstractSIGMETIWXXMSerializer.java
+++ b/src/main/java/fi/fmi/avi/converter/iwxxm/sigmet/AbstractSIGMETIWXXMSerializer.java
@@ -306,6 +306,7 @@ public ConversionResult<T> convertMessage(final SIGMET input, final ConversionHi
     {
         result.setStatus(Status.SUCCESS);
         this.updateMessageMetadata(input, result, sigmet);
+
         ConverterValidationEventHandler eventHandler = new ConverterValidationEventHandler(result);
         if (input.getSigmetPhenomenon().equals(AviationCodeListUser.AeronauticalSignificantWeatherPhenomenon.VA)) {
             this.validateDocument(((VolcanicAshSIGMETType) sigmet), VolcanicAshSIGMETType.class, hints, eventHandler); //TODO true is for debugging: shows