From 8463218c8e83ea28cbadf7b2f391db9e0f387f3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=CC=88rg=20Prante?= <joergprante@gmail.com>
Date: Sun, 8 Jan 2017 16:40:38 +0100
Subject: [PATCH] add two convienience method to check first/last subfield
 value, add MARC round trip test

---
 build.gradle                                  |  7 ++
 docs/javadoc/allclasses-frame.html            |  2 +-
 docs/javadoc/allclasses-noframe.html          |  2 +-
 docs/javadoc/constant-values.html             |  4 +-
 docs/javadoc/deprecated-list.html             |  4 +-
 docs/javadoc/help-doc.html                    |  4 +-
 docs/javadoc/index-all.html                   | 12 ++-
 docs/javadoc/index.html                       |  2 +-
 .../marc/LightweightMarcRecordAdapter.html    |  4 +-
 docs/javadoc/org/xbib/marc/Marc.Builder.html  |  4 +-
 .../org/xbib/marc/Marc.MarcIso2709Reader.html |  4 +-
 .../org/xbib/marc/Marc.MarcXmlReader.html     |  4 +-
 docs/javadoc/org/xbib/marc/Marc.html          |  4 +-
 .../org/xbib/marc/MarcField.Builder.html      |  4 +-
 .../org/xbib/marc/MarcField.Subfield.html     |  4 +-
 docs/javadoc/org/xbib/marc/MarcField.html     | 84 +++++++++++-----
 .../org/xbib/marc/MarcFieldDirectory.html     |  4 +-
 docs/javadoc/org/xbib/marc/MarcGenerator.html |  4 +-
 docs/javadoc/org/xbib/marc/MarcListener.html  |  4 +-
 docs/javadoc/org/xbib/marc/MarcRecord.html    |  4 +-
 .../org/xbib/marc/MarcRecordAdapter.html      |  4 +-
 .../org/xbib/marc/MarcRecordListener.html     |  4 +-
 docs/javadoc/org/xbib/marc/MarcWriter.html    |  4 +-
 .../org/xbib/marc/MarcXchangeConstants.html   |  4 +-
 .../aleph/AlephSequentialInputStream.html     |  4 +-
 .../marc/dialects/aleph/package-frame.html    |  2 +-
 .../marc/dialects/aleph/package-summary.html  |  4 +-
 .../marc/dialects/aleph/package-tree.html     |  4 +-
 .../bibliomondo/BiblioMondoInputStream.html   |  4 +-
 .../dialects/bibliomondo/package-frame.html   |  2 +-
 .../dialects/bibliomondo/package-summary.html |  4 +-
 .../dialects/bibliomondo/package-tree.html    |  4 +-
 .../mab/diskette/MabDisketteInputStream.html  |  4 +-
 .../dialects/mab/diskette/package-frame.html  |  2 +-
 .../mab/diskette/package-summary.html         |  4 +-
 .../dialects/mab/diskette/package-tree.html   |  4 +-
 .../dialects/mab/xml/MabXMLConstants.html     |  4 +-
 .../mab/xml/MabXMLContentHandler.html         |  4 +-
 .../marc/dialects/mab/xml/package-frame.html  |  2 +-
 .../dialects/mab/xml/package-summary.html     |  4 +-
 .../marc/dialects/mab/xml/package-tree.html   |  4 +-
 .../marc/dialects/pica/PicaConstants.html     |  4 +-
 .../marc/dialects/pica/PicaInputStream.html   |  4 +-
 .../dialects/pica/PicaPlainInputStream.html   |  4 +-
 .../dialects/pica/PicaXMLContentHandler.html  |  4 +-
 .../marc/dialects/pica/package-frame.html     |  2 +-
 .../marc/dialects/pica/package-summary.html   |  4 +-
 .../xbib/marc/dialects/pica/package-tree.html |  4 +-
 .../marc/dialects/sisis/SisisInputStream.html |  4 +-
 .../marc/dialects/sisis/package-frame.html    |  2 +-
 .../marc/dialects/sisis/package-summary.html  |  4 +-
 .../marc/dialects/sisis/package-tree.html     |  4 +-
 .../marc/io/BufferedSeparatorInputStream.html |  4 +-
 docs/javadoc/org/xbib/marc/io/BytesArray.html |  4 +-
 .../org/xbib/marc/io/BytesReference.html      |  4 +-
 .../org/xbib/marc/io/BytesStreamOutput.html   |  4 +-
 docs/javadoc/org/xbib/marc/io/Chunk.html      |  4 +-
 .../org/xbib/marc/io/ChunkListener.html       |  4 +-
 .../javadoc/org/xbib/marc/io/ChunkStream.html |  4 +-
 .../org/xbib/marc/io/DefaultChunk.html        |  4 +-
 .../io/FixedTokenReplacementInputStream.html  |  4 +-
 .../xbib/marc/io/InformationSeparator.html    |  4 +-
 .../org/xbib/marc/io/PatternInputStream.html  |  4 +-
 .../marc/io/ReplaceStringInputStream.html     |  4 +-
 docs/javadoc/org/xbib/marc/io/ScanBuffer.html |  4 +-
 .../xbib/marc/io/SeparatorInputStream.html    |  4 +-
 .../xbib/marc/io/SeparatorOutputStream.html   |  4 +-
 .../org/xbib/marc/io/package-frame.html       |  2 +-
 .../org/xbib/marc/io/package-summary.html     |  4 +-
 .../org/xbib/marc/io/package-tree.html        |  4 +-
 .../xbib/marc/json/MarcJsonWriter.Style.html  |  4 +-
 .../org/xbib/marc/json/MarcJsonWriter.html    |  4 +-
 .../org/xbib/marc/json/package-frame.html     |  2 +-
 .../org/xbib/marc/json/package-summary.html   |  4 +-
 .../org/xbib/marc/json/package-tree.html      |  4 +-
 .../xbib/marc/label/BibliographicLevel.html   |  4 +-
 .../marc/label/DescriptiveCatalogingForm.html |  4 +-
 .../javadoc/org/xbib/marc/label/Encoding.html |  4 +-
 .../org/xbib/marc/label/EncodingLevel.html    |  4 +-
 .../label/MultipartResourceRecordLevel.html   |  4 +-
 .../xbib/marc/label/RecordLabel.Builder.html  |  4 +-
 .../org/xbib/marc/label/RecordLabel.html      |  4 +-
 .../org/xbib/marc/label/RecordLabelFixer.html |  4 +-
 .../org/xbib/marc/label/RecordStatus.html     |  4 +-
 .../org/xbib/marc/label/TypeOfControl.html    |  4 +-
 .../org/xbib/marc/label/TypeOfRecord.html     |  4 +-
 .../org/xbib/marc/label/package-frame.html    |  2 +-
 .../org/xbib/marc/label/package-summary.html  |  4 +-
 .../org/xbib/marc/label/package-tree.html     | 16 ++--
 docs/javadoc/org/xbib/marc/package-frame.html |  2 +-
 .../org/xbib/marc/package-summary.html        |  4 +-
 docs/javadoc/org/xbib/marc/package-tree.html  |  4 +-
 .../javadoc/org/xbib/marc/tools/MarcTool.html |  4 +-
 .../org/xbib/marc/tools/package-frame.html    |  2 +-
 .../org/xbib/marc/tools/package-summary.html  |  4 +-
 .../org/xbib/marc/tools/package-tree.html     |  4 +-
 .../marc/transformer/MarcTransformer.html     |  4 +-
 .../field/MarcFieldTransformer.Builder.html   |  4 +-
 .../field/MarcFieldTransformer.Operator.html  |  4 +-
 .../field/MarcFieldTransformer.html           |  4 +-
 .../field/MarcFieldTransformers.html          |  4 +-
 .../marc/transformer/field/package-frame.html |  2 +-
 .../transformer/field/package-summary.html    |  4 +-
 .../marc/transformer/field/package-tree.html  |  4 +-
 .../xbib/marc/transformer/package-frame.html  |  2 +-
 .../marc/transformer/package-summary.html     |  4 +-
 .../xbib/marc/transformer/package-tree.html   |  4 +-
 .../value/MarcValueTransformer.html           |  4 +-
 .../value/MarcValueTransformers.html          |  4 +-
 .../value/Xml10MarcValueCleaner.html          |  4 +-
 .../marc/transformer/value/package-frame.html |  2 +-
 .../transformer/value/package-summary.html    |  4 +-
 .../marc/transformer/value/package-tree.html  |  4 +-
 .../marc/xml/IndentingXMLEventWriter.html     |  4 +-
 .../marc/xml/InverseMarcContentHandler.html   |  4 +-
 .../org/xbib/marc/xml/MarcContentHandler.html |  4 +-
 .../marc/xml/MarcXchangeEventConsumer.html    |  4 +-
 .../org/xbib/marc/xml/MarcXchangeWriter.html  |  4 +-
 docs/javadoc/org/xbib/marc/xml/Sax2Dom.html   |  4 +-
 .../org/xbib/marc/xml/package-frame.html      |  2 +-
 .../org/xbib/marc/xml/package-summary.html    |  4 +-
 .../org/xbib/marc/xml/package-tree.html       |  4 +-
 docs/javadoc/overview-frame.html              |  2 +-
 docs/javadoc/overview-summary.html            |  6 +-
 docs/javadoc/overview-tree.html               |  4 +-
 docs/javadoc/serialized-form.html             |  4 +-
 .../org.xbib.marc.ConcurrencyTest.html        | 10 +-
 .../classes/org.xbib.marc.MarcFieldTest.html  | 13 ++-
 .../classes/org.xbib.marc.MarcRecordTest.html | 18 ++--
 docs/test/classes/org.xbib.marc.MarcTest.html | 68 ++++++-------
 .../classes/org.xbib.marc.MarcToModsTest.html | 14 +--
 .../classes/org.xbib.marc.MarcWriterTest.html |  8 +-
 .../org.xbib.marc.MarcXchangeWriterTest.html  |  8 +-
 docs/test/classes/org.xbib.marc.ZDBTest.html  | 14 +--
 ...rc.dialects.aleph.AlephSequentialTest.html |  6 +-
 ...ibliomondo.BiblioMondoInputStreamTest.html |  2 +-
 .../org.xbib.marc.dialects.mab.MabTest.html   | 18 ++--
 ...dialects.mab.diskette.MabDisketteTest.html |  8 +-
 .../org.xbib.marc.dialects.pica.PicaTest.html | 10 +-
 ...rg.xbib.marc.dialects.sisis.SisisTest.html |  8 +-
 ...bib.marc.dialects.unimarc.UnimarcTest.html |  6 +-
 ...c.io.BufferedSeparatorInputStreamTest.html | 10 +-
 ...rg.xbib.marc.io.BytesStreamOutputTest.html |  6 +-
 ...g.xbib.marc.io.PatternInputStreamTest.html | 12 +--
 ....marc.io.ReplaceStringInputStreamTest.html |  6 +-
 .../org.xbib.marc.io.ScanBufferTest.html      |  6 +-
 ...org.xbib.marc.json.MarcJsonWriterTest.html | 16 ++--
 .../org.xbib.marc.label.RecordLabelTest.html  | 16 ++--
 .../classes/org.xbib.marc.tools.ToolTest.html |  8 +-
 ....transformer.MarcFieldTransformerTest.html | 10 +-
 ...transformer.MarcFieldTransformersTest.html |  6 +-
 ....transformer.MarcValueTransformerTest.html | 12 +--
 ...g.xbib.marc.xml.MarcEventConsumerTest.html |  6 +-
 .../org.xbib.marc.xml.MarcXMLTest.html        |  8 +-
 docs/test/index.html                          | 95 ++++++++++---------
 .../org.xbib.marc.dialects.aleph.html         |  6 +-
 .../org.xbib.marc.dialects.bibliomondo.html   |  2 +-
 .../org.xbib.marc.dialects.mab.diskette.html  |  6 +-
 .../packages/org.xbib.marc.dialects.mab.html  |  6 +-
 .../packages/org.xbib.marc.dialects.pica.html |  6 +-
 .../org.xbib.marc.dialects.sisis.html         |  6 +-
 .../org.xbib.marc.dialects.unimarc.html       |  6 +-
 docs/test/packages/org.xbib.marc.html         | 34 ++++---
 docs/test/packages/org.xbib.marc.io.html      | 14 +--
 docs/test/packages/org.xbib.marc.json.html    |  6 +-
 docs/test/packages/org.xbib.marc.label.html   |  6 +-
 docs/test/packages/org.xbib.marc.tools.html   |  6 +-
 .../packages/org.xbib.marc.transformer.html   |  6 +-
 docs/test/packages/org.xbib.marc.xml.html     |  8 +-
 gradle.properties                             |  2 +-
 src/docs/asciidoc/index.adoc                  | 52 ++++++++++
 src/main/java/org/xbib/marc/MarcField.java    | 18 ++++
 .../field/MarcFieldTransformer.java           |  3 +-
 .../java/org/xbib/marc/MarcFieldTest.java     | 17 ++++
 .../java/org/xbib/marc/MarcRoundTripTest.java | 72 ++++++++++++++
 src/test/java/org/xbib/marc/MarcTest.java     |  9 +-
 176 files changed, 766 insertions(+), 524 deletions(-)
 create mode 100644 src/test/java/org/xbib/marc/MarcRoundTripTest.java

diff --git a/build.gradle b/build.gradle
index 040bc71..5c0fc5d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -55,6 +55,13 @@ test {
     reports.html.destination = file("${projectDir}/docs/test")
 }
 
+javadoc {
+    options.destinationDirectory(file("${projectDir}/docs/javadoc"))
+    configure(options) {
+        noTimestamp = true
+    }
+}
+
 asciidoctor {
     backends 'html5'
     outputDir = file("${projectDir}/docs")
diff --git a/docs/javadoc/allclasses-frame.html b/docs/javadoc/allclasses-frame.html
index f970ac2..77aef31 100644
--- a/docs/javadoc/allclasses-frame.html
+++ b/docs/javadoc/allclasses-frame.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>All Classes (marc 1.0.8 API)</title>
+<title>All Classes (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
diff --git a/docs/javadoc/allclasses-noframe.html b/docs/javadoc/allclasses-noframe.html
index 3182f49..c4b41aa 100644
--- a/docs/javadoc/allclasses-noframe.html
+++ b/docs/javadoc/allclasses-noframe.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>All Classes (marc 1.0.8 API)</title>
+<title>All Classes (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
diff --git a/docs/javadoc/constant-values.html b/docs/javadoc/constant-values.html
index d73937f..8dfd4d3 100644
--- a/docs/javadoc/constant-values.html
+++ b/docs/javadoc/constant-values.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Constant Field Values (marc 1.0.8 API)</title>
+<title>Constant Field Values (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Constant Field Values (marc 1.0.8 API)";
+            parent.document.title="Constant Field Values (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/deprecated-list.html b/docs/javadoc/deprecated-list.html
index 5da6905..a026602 100644
--- a/docs/javadoc/deprecated-list.html
+++ b/docs/javadoc/deprecated-list.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Deprecated List (marc 1.0.8 API)</title>
+<title>Deprecated List (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Deprecated List (marc 1.0.8 API)";
+            parent.document.title="Deprecated List (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/help-doc.html b/docs/javadoc/help-doc.html
index 71ec1ed..bfac8fb 100644
--- a/docs/javadoc/help-doc.html
+++ b/docs/javadoc/help-doc.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>API Help (marc 1.0.8 API)</title>
+<title>API Help (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="API Help (marc 1.0.8 API)";
+            parent.document.title="API Help (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/index-all.html b/docs/javadoc/index-all.html
index 98d2344..dab638a 100644
--- a/docs/javadoc/index-all.html
+++ b/docs/javadoc/index-all.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Index (marc 1.0.8 API)</title>
+<title>Index (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="stylesheet.css" title="Style">
 <script type="text/javascript" src="script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Index (marc 1.0.8 API)";
+            parent.document.title="Index (marc 1.0.9 API)";
         }
     }
     catch(err) {
@@ -661,6 +661,10 @@
 <dd>
 <div class="block">Return the MARC fields of this record.</div>
 </dd>
+<dt><span class="memberNameLink"><a href="org/xbib/marc/MarcField.html#getFirstSubfield--">getFirstSubfield()</a></span> - Method in class org.xbib.marc.<a href="org/xbib/marc/MarcField.html" title="class in org.xbib.marc">MarcField</a></dt>
+<dd>
+<div class="block">Return first subfield or null.</div>
+</dd>
 <dt><span class="memberNameLink"><a href="org/xbib/marc/Marc.Builder.html#getFormat--">getFormat()</a></span> - Method in class org.xbib.marc.<a href="org/xbib/marc/Marc.Builder.html" title="class in org.xbib.marc">Marc.Builder</a></dt>
 <dd>&nbsp;</dd>
 <dt><span class="memberNameLink"><a href="org/xbib/marc/MarcRecord.html#getFormat--">getFormat()</a></span> - Method in class org.xbib.marc.<a href="org/xbib/marc/MarcRecord.html" title="class in org.xbib.marc">MarcRecord</a></dt>
@@ -687,6 +691,10 @@
 </dd>
 <dt><span class="memberNameLink"><a href="org/xbib/marc/transformer/field/MarcFieldTransformer.html#getLastBuilt--">getLastBuilt()</a></span> - Method in class org.xbib.marc.transformer.field.<a href="org/xbib/marc/transformer/field/MarcFieldTransformer.html" title="class in org.xbib.marc.transformer.field">MarcFieldTransformer</a></dt>
 <dd>&nbsp;</dd>
+<dt><span class="memberNameLink"><a href="org/xbib/marc/MarcField.html#getLastSubfield--">getLastSubfield()</a></span> - Method in class org.xbib.marc.<a href="org/xbib/marc/MarcField.html" title="class in org.xbib.marc">MarcField</a></dt>
+<dd>
+<div class="block">Return last subfield or null.</div>
+</dd>
 <dt><span class="memberNameLink"><a href="org/xbib/marc/MarcField.html#getLength--">getLength()</a></span> - Method in class org.xbib.marc.<a href="org/xbib/marc/MarcField.html" title="class in org.xbib.marc">MarcField</a></dt>
 <dd>
 <div class="block">Return the MARC field length.</div>
diff --git a/docs/javadoc/index.html b/docs/javadoc/index.html
index 8ff4069..9aa297a 100644
--- a/docs/javadoc/index.html
+++ b/docs/javadoc/index.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>marc 1.0.8 API</title>
+<title>marc 1.0.9 API</title>
 <script type="text/javascript">
     tmpTargetPage = "" + window.location.search;
     if (tmpTargetPage != "" && tmpTargetPage != "undefined")
diff --git a/docs/javadoc/org/xbib/marc/LightweightMarcRecordAdapter.html b/docs/javadoc/org/xbib/marc/LightweightMarcRecordAdapter.html
index 3d7e17c..8ce29bb 100644
--- a/docs/javadoc/org/xbib/marc/LightweightMarcRecordAdapter.html
+++ b/docs/javadoc/org/xbib/marc/LightweightMarcRecordAdapter.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>LightweightMarcRecordAdapter (marc 1.0.8 API)</title>
+<title>LightweightMarcRecordAdapter (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="LightweightMarcRecordAdapter (marc 1.0.8 API)";
+            parent.document.title="LightweightMarcRecordAdapter (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/org/xbib/marc/Marc.Builder.html b/docs/javadoc/org/xbib/marc/Marc.Builder.html
index 743a61f..0e94f8a 100644
--- a/docs/javadoc/org/xbib/marc/Marc.Builder.html
+++ b/docs/javadoc/org/xbib/marc/Marc.Builder.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Marc.Builder (marc 1.0.8 API)</title>
+<title>Marc.Builder (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Marc.Builder (marc 1.0.8 API)";
+            parent.document.title="Marc.Builder (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/org/xbib/marc/Marc.MarcIso2709Reader.html b/docs/javadoc/org/xbib/marc/Marc.MarcIso2709Reader.html
index 88bf918..640cde3 100644
--- a/docs/javadoc/org/xbib/marc/Marc.MarcIso2709Reader.html
+++ b/docs/javadoc/org/xbib/marc/Marc.MarcIso2709Reader.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Marc.MarcIso2709Reader (marc 1.0.8 API)</title>
+<title>Marc.MarcIso2709Reader (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Marc.MarcIso2709Reader (marc 1.0.8 API)";
+            parent.document.title="Marc.MarcIso2709Reader (marc 1.0.9 API)";
         }
     }
     catch(err) {
diff --git a/docs/javadoc/org/xbib/marc/Marc.MarcXmlReader.html b/docs/javadoc/org/xbib/marc/Marc.MarcXmlReader.html
index 7699cfc..8b565fc 100644
--- a/docs/javadoc/org/xbib/marc/Marc.MarcXmlReader.html
+++ b/docs/javadoc/org/xbib/marc/Marc.MarcXmlReader.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Marc.MarcXmlReader (marc 1.0.8 API)</title>
+<title>Marc.MarcXmlReader (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
 </head>
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 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Marc.MarcXmlReader (marc 1.0.8 API)";
+            parent.document.title="Marc.MarcXmlReader (marc 1.0.9 API)";
         }
     }
     catch(err) {
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index c6f2bda..7f9a123 100644
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+++ b/docs/javadoc/org/xbib/marc/Marc.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>Marc (marc 1.0.8 API)</title>
+<title>Marc (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="Marc (marc 1.0.8 API)";
+            parent.document.title="Marc (marc 1.0.9 API)";
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index f8c4091..cf7e83b 100644
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@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcField.Builder (marc 1.0.8 API)</title>
+<title>MarcField.Builder (marc 1.0.9 API)</title>
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 <script type="text/javascript" src="../../../script.js"></script>
 </head>
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 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcField.Builder (marc 1.0.8 API)";
+            parent.document.title="MarcField.Builder (marc 1.0.9 API)";
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@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcField.Subfield (marc 1.0.8 API)</title>
+<title>MarcField.Subfield (marc 1.0.9 API)</title>
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 <script type="text/javascript" src="../../../script.js"></script>
 </head>
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     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcField.Subfield (marc 1.0.8 API)";
+            parent.document.title="MarcField.Subfield (marc 1.0.9 API)";
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diff --git a/docs/javadoc/org/xbib/marc/MarcField.html b/docs/javadoc/org/xbib/marc/MarcField.html
index 51acf56..4cf1dfb 100644
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@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcField (marc 1.0.8 API)</title>
+<title>MarcField (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../script.js"></script>
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@@ -11,13 +11,13 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcField (marc 1.0.8 API)";
+            parent.document.title="MarcField (marc 1.0.9 API)";
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-var methods = {"i0":9,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10,"i12":10,"i13":10,"i14":10,"i15":10,"i16":10,"i17":10,"i18":10,"i19":10,"i20":10,"i21":10,"i22":10};
+var methods = {"i0":9,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10,"i12":10,"i13":10,"i14":10,"i15":10,"i16":10,"i17":10,"i18":10,"i19":10,"i20":10,"i21":10,"i22":10,"i23":10,"i24":10};
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@@ -198,108 +198,120 @@ implements java.lang.Comparable&lt;<a href="../../../org/xbib/marc/MarcField.htm
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object&nbsp;object)</code>&nbsp;</td>
 </tr>
 <tr id="i3" class="rowColor">
+<td class="colFirst"><code><a href="../../../org/xbib/marc/MarcField.Subfield.html" title="class in org.xbib.marc">MarcField.Subfield</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#getFirstSubfield--">getFirstSubfield</a></span>()</code>
+<div class="block">Return first subfield or null.</div>
+</td>
+</tr>
+<tr id="i4" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#getIndicator--">getIndicator</a></span>()</code>
 <div class="block">Return the MARC field indicator, one or more chaarcters.</div>
 </td>
 </tr>
-<tr id="i4" class="altColor">
+<tr id="i5" class="rowColor">
+<td class="colFirst"><code><a href="../../../org/xbib/marc/MarcField.Subfield.html" title="class in org.xbib.marc">MarcField.Subfield</a></code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#getLastSubfield--">getLastSubfield</a></span>()</code>
+<div class="block">Return last subfield or null.</div>
+</td>
+</tr>
+<tr id="i6" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#getLength--">getLength</a></span>()</code>
 <div class="block">Return the MARC field length.</div>
 </td>
 </tr>
-<tr id="i5" class="rowColor">
+<tr id="i7" class="rowColor">
 <td class="colFirst"><code>int</code></td>
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 <div class="block">Return the MARC field position.</div>
 </td>
 </tr>
-<tr id="i6" class="altColor">
+<tr id="i8" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
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 <div class="block">Return subfield IDs.</div>
 </td>
 </tr>
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+<tr id="i9" class="rowColor">
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 <div class="block">Return the subfields associated with this MARC field.</div>
 </td>
 </tr>
-<tr id="i8" class="altColor">
+<tr id="i10" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
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 <div class="block">Return the MARC field tag.</div>
 </td>
 </tr>
-<tr id="i9" class="rowColor">
+<tr id="i11" class="rowColor">
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 <div class="block">Return the field value of this MAR field.</div>
 </td>
 </tr>
-<tr id="i10" class="altColor">
+<tr id="i12" class="altColor">
 <td class="colFirst"><code>int</code></td>
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 </tr>
-<tr id="i11" class="rowColor">
+<tr id="i13" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#isControl--">isControl</a></span>()</code>
 <div class="block">Returns if this MARC field is a control field.</div>
 </td>
 </tr>
-<tr id="i12" class="altColor">
+<tr id="i14" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
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 <div class="block">Returns if this MARC field is empty.</div>
 </td>
 </tr>
-<tr id="i13" class="rowColor">
+<tr id="i15" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
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 </tr>
-<tr id="i14" class="altColor">
+<tr id="i16" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#isSubfieldValid--">isSubfieldValid</a></span>()</code>&nbsp;</td>
 </tr>
-<tr id="i15" class="rowColor">
+<tr id="i17" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#isTagValid--">isTagValid</a></span>()</code>&nbsp;</td>
 </tr>
-<tr id="i16" class="altColor">
+<tr id="i18" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#isValid--">isValid</a></span>()</code>&nbsp;</td>
 </tr>
-<tr id="i17" class="rowColor">
+<tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../org/xbib/marc/MarcField.html" title="class in org.xbib.marc">MarcField</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#matchKey-java.util.regex.Pattern-">matchKey</a></span>(java.util.regex.Pattern&nbsp;pattern)</code>
 <div class="block">Check if pattern matches the tag/indicator key  <code>tag '$' indicator</code>.</div>
 </td>
 </tr>
-<tr id="i18" class="altColor">
+<tr id="i20" class="altColor">
 <td class="colFirst"><code><a href="../../../org/xbib/marc/MarcField.html" title="class in org.xbib.marc">MarcField</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#matchValue-java.util.regex.Pattern-">matchValue</a></span>(java.util.regex.Pattern&nbsp;pattern)</code>
 <div class="block">Search for fields that match a pattern.</div>
 </td>
 </tr>
-<tr id="i19" class="rowColor">
+<tr id="i21" class="rowColor">
 <td class="colFirst"><code>java.lang.String</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#toKey--">toKey</a></span>()</code>
 <div class="block">A MARC field can be denoted by a key, independent of values.</div>
 </td>
 </tr>
-<tr id="i20" class="altColor">
+<tr id="i22" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
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 </tr>
-<tr id="i21" class="rowColor">
+<tr id="i23" class="rowColor">
 <td class="colFirst"><code>java.lang.String</code></td>
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 <div class="block">A MARC field can be denoted by a key, independent of values.</div>
 </td>
 </tr>
-<tr id="i22" class="altColor">
+<tr id="i24" class="altColor">
 <td class="colFirst"><code>java.lang.String</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/xbib/marc/MarcField.html#toTagKey--">toTagKey</a></span>()</code>
 <div class="block">A MARC field can be denoted by a key, independent of values.</div>
@@ -441,6 +453,34 @@ implements java.lang.Comparable&lt;<a href="../../../org/xbib/marc/MarcField.htm
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 </li>
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+<a name="getFirstSubfield--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getFirstSubfield</h4>
+<pre>public&nbsp;<a href="../../../org/xbib/marc/MarcField.Subfield.html" title="class in org.xbib.marc">MarcField.Subfield</a>&nbsp;getFirstSubfield()</pre>
+<div class="block">Return first subfield or null. Avoids NoSuchElementException of java.util.LinkedList.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>first subfield or null</dd>
+</dl>
+</li>
+</ul>
+<a name="getLastSubfield--">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getLastSubfield</h4>
+<pre>public&nbsp;<a href="../../../org/xbib/marc/MarcField.Subfield.html" title="class in org.xbib.marc">MarcField.Subfield</a>&nbsp;getLastSubfield()</pre>
+<div class="block">Return last subfield or null. Avoids NoSuchElementException of java.util.LinkedList.</div>
+<dl>
+<dt><span class="returnLabel">Returns:</span></dt>
+<dd>last subfield or null</dd>
+</dl>
+</li>
+</ul>
 <a name="getValue--">
 <!--   -->
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diff --git a/docs/javadoc/org/xbib/marc/MarcFieldDirectory.html b/docs/javadoc/org/xbib/marc/MarcFieldDirectory.html
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@@ -3,7 +3,7 @@
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 <head>
 <!-- Generated by javadoc -->
-<title>MarcFieldDirectory (marc 1.0.8 API)</title>
+<title>MarcFieldDirectory (marc 1.0.9 API)</title>
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 <script type="text/javascript"><!--
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-            parent.document.title="MarcFieldDirectory (marc 1.0.8 API)";
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diff --git a/docs/javadoc/org/xbib/marc/MarcGenerator.html b/docs/javadoc/org/xbib/marc/MarcGenerator.html
index 05f2613..20a8f35 100644
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@@ -3,7 +3,7 @@
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 <head>
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+<title>MarcGenerator (marc 1.0.9 API)</title>
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@@ -11,7 +11,7 @@
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-            parent.document.title="MarcGenerator (marc 1.0.8 API)";
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diff --git a/docs/javadoc/org/xbib/marc/MarcListener.html b/docs/javadoc/org/xbib/marc/MarcListener.html
index 51dde4d..5c560d2 100644
--- a/docs/javadoc/org/xbib/marc/MarcListener.html
+++ b/docs/javadoc/org/xbib/marc/MarcListener.html
@@ -3,7 +3,7 @@
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 <head>
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+<title>MarcListener (marc 1.0.9 API)</title>
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@@ -11,7 +11,7 @@
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-            parent.document.title="MarcListener (marc 1.0.8 API)";
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index 6b4f03c..df45e9f 100644
--- a/docs/javadoc/org/xbib/marc/MarcRecord.html
+++ b/docs/javadoc/org/xbib/marc/MarcRecord.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcRecord (marc 1.0.8 API)</title>
+<title>MarcRecord (marc 1.0.9 API)</title>
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 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcRecord (marc 1.0.8 API)";
+            parent.document.title="MarcRecord (marc 1.0.9 API)";
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     catch(err) {
diff --git a/docs/javadoc/org/xbib/marc/MarcRecordAdapter.html b/docs/javadoc/org/xbib/marc/MarcRecordAdapter.html
index 04807a3..5f506c9 100644
--- a/docs/javadoc/org/xbib/marc/MarcRecordAdapter.html
+++ b/docs/javadoc/org/xbib/marc/MarcRecordAdapter.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcRecordAdapter (marc 1.0.8 API)</title>
+<title>MarcRecordAdapter (marc 1.0.9 API)</title>
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 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcRecordAdapter (marc 1.0.8 API)";
+            parent.document.title="MarcRecordAdapter (marc 1.0.9 API)";
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     catch(err) {
diff --git a/docs/javadoc/org/xbib/marc/MarcRecordListener.html b/docs/javadoc/org/xbib/marc/MarcRecordListener.html
index c7db55d..a04cdf7 100644
--- a/docs/javadoc/org/xbib/marc/MarcRecordListener.html
+++ b/docs/javadoc/org/xbib/marc/MarcRecordListener.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcRecordListener (marc 1.0.8 API)</title>
+<title>MarcRecordListener (marc 1.0.9 API)</title>
 <link rel="stylesheet" type="text/css" href="../../../stylesheet.css" title="Style">
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 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcRecordListener (marc 1.0.8 API)";
+            parent.document.title="MarcRecordListener (marc 1.0.9 API)";
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index c5a478b..58fb757 100644
--- a/docs/javadoc/org/xbib/marc/MarcWriter.html
+++ b/docs/javadoc/org/xbib/marc/MarcWriter.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcWriter (marc 1.0.8 API)</title>
+<title>MarcWriter (marc 1.0.9 API)</title>
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 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcWriter (marc 1.0.8 API)";
+            parent.document.title="MarcWriter (marc 1.0.9 API)";
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index c0edaac..6927be0 100644
--- a/docs/javadoc/org/xbib/marc/MarcXchangeConstants.html
+++ b/docs/javadoc/org/xbib/marc/MarcXchangeConstants.html
@@ -3,7 +3,7 @@
 <html lang="de">
 <head>
 <!-- Generated by javadoc -->
-<title>MarcXchangeConstants (marc 1.0.8 API)</title>
+<title>MarcXchangeConstants (marc 1.0.9 API)</title>
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 </head>
@@ -11,7 +11,7 @@
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
-            parent.document.title="MarcXchangeConstants (marc 1.0.8 API)";
+            parent.document.title="MarcXchangeConstants (marc 1.0.9 API)";
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index c6e84fd..8699a1c 100644
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+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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diff --git a/docs/test/classes/org.xbib.marc.MarcWriterTest.html b/docs/test/classes/org.xbib.marc.MarcWriterTest.html
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+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
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 </body>
diff --git a/docs/test/classes/org.xbib.marc.MarcXchangeWriterTest.html b/docs/test/classes/org.xbib.marc.MarcXchangeWriterTest.html
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--- a/docs/test/classes/org.xbib.marc.MarcXchangeWriterTest.html
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 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.ZDBTest.html b/docs/test/classes/org.xbib.marc.ZDBTest.html
index 6b7d94e..df19a7b 100644
--- a/docs/test/classes/org.xbib.marc.ZDBTest.html
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+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
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diff --git a/docs/test/classes/org.xbib.marc.dialects.aleph.AlephSequentialTest.html b/docs/test/classes/org.xbib.marc.dialects.aleph.AlephSequentialTest.html
index 8a4c22a..198a194 100644
--- a/docs/test/classes/org.xbib.marc.dialects.aleph.AlephSequentialTest.html
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+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
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diff --git a/docs/test/classes/org.xbib.marc.dialects.bibliomondo.BiblioMondoInputStreamTest.html b/docs/test/classes/org.xbib.marc.dialects.bibliomondo.BiblioMondoInputStreamTest.html
index 682a7ab..1414c07 100644
--- a/docs/test/classes/org.xbib.marc.dialects.bibliomondo.BiblioMondoInputStreamTest.html
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-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.dialects.mab.MabTest.html b/docs/test/classes/org.xbib.marc.dialects.mab.MabTest.html
index 750cc00..4784a57 100644
--- a/docs/test/classes/org.xbib.marc.dialects.mab.MabTest.html
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@@ -41,7 +41,7 @@
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-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.dialects.mab.diskette.MabDisketteTest.html b/docs/test/classes/org.xbib.marc.dialects.mab.diskette.MabDisketteTest.html
index b4a3a06..cc16af7 100644
--- a/docs/test/classes/org.xbib.marc.dialects.mab.diskette.MabDisketteTest.html
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@@ -41,7 +41,7 @@
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@@ -94,7 +94,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.dialects.pica.PicaTest.html b/docs/test/classes/org.xbib.marc.dialects.pica.PicaTest.html
index 307e173..67a4c64 100644
--- a/docs/test/classes/org.xbib.marc.dialects.pica.PicaTest.html
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@@ -41,7 +41,7 @@
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@@ -76,17 +76,17 @@
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@@ -99,7 +99,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.dialects.sisis.SisisTest.html b/docs/test/classes/org.xbib.marc.dialects.sisis.SisisTest.html
index eb252fd..cfcb60e 100644
--- a/docs/test/classes/org.xbib.marc.dialects.sisis.SisisTest.html
+++ b/docs/test/classes/org.xbib.marc.dialects.sisis.SisisTest.html
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@@ -94,7 +94,7 @@
 <input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.dialects.unimarc.UnimarcTest.html b/docs/test/classes/org.xbib.marc.dialects.unimarc.UnimarcTest.html
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--- a/docs/test/classes/org.xbib.marc.dialects.unimarc.UnimarcTest.html
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@@ -89,7 +89,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.io.BufferedSeparatorInputStreamTest.html b/docs/test/classes/org.xbib.marc.io.BufferedSeparatorInputStreamTest.html
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--- a/docs/test/classes/org.xbib.marc.io.BufferedSeparatorInputStreamTest.html
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@@ -109,7 +109,7 @@
 <input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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 </div>
 </body>
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@@ -89,7 +89,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.io.PatternInputStreamTest.html b/docs/test/classes/org.xbib.marc.io.PatternInputStreamTest.html
index ba11b06..36ed202 100644
--- a/docs/test/classes/org.xbib.marc.io.PatternInputStreamTest.html
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@@ -109,7 +109,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.io.ReplaceStringInputStreamTest.html b/docs/test/classes/org.xbib.marc.io.ReplaceStringInputStreamTest.html
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@@ -76,7 +76,7 @@
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-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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 </body>
diff --git a/docs/test/classes/org.xbib.marc.io.ScanBufferTest.html b/docs/test/classes/org.xbib.marc.io.ScanBufferTest.html
index 2ad87b3..8a564ae 100644
--- a/docs/test/classes/org.xbib.marc.io.ScanBufferTest.html
+++ b/docs/test/classes/org.xbib.marc.io.ScanBufferTest.html
@@ -41,7 +41,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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diff --git a/docs/test/classes/org.xbib.marc.json.MarcJsonWriterTest.html b/docs/test/classes/org.xbib.marc.json.MarcJsonWriterTest.html
index 83b3fc6..26e311a 100644
--- a/docs/test/classes/org.xbib.marc.json.MarcJsonWriterTest.html
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@@ -76,22 +76,22 @@
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 <td class="success">elasticsearchBulkFormatCompressed</td>
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
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diff --git a/docs/test/classes/org.xbib.marc.label.RecordLabelTest.html b/docs/test/classes/org.xbib.marc.label.RecordLabelTest.html
index 299a9da..3dd5083 100644
--- a/docs/test/classes/org.xbib.marc.label.RecordLabelTest.html
+++ b/docs/test/classes/org.xbib.marc.label.RecordLabelTest.html
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 <tr>
 <td class="success">testEncoding</td>
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 <td class="success">passed</td>
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 <td class="success">testIllegalSegmentIdentifierLength</td>
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 <td class="success">passed</td>
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@@ -136,7 +136,7 @@
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 <tr>
 <td class="success">testNegativeMaxRecordLength</td>
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 <td class="success">passed</td>
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@@ -146,12 +146,12 @@
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 <td class="success">testRecordLabelBuilder</td>
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.tools.ToolTest.html b/docs/test/classes/org.xbib.marc.tools.ToolTest.html
index 9e9bff3..dde8e02 100644
--- a/docs/test/classes/org.xbib.marc.tools.ToolTest.html
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@@ -76,12 +76,12 @@
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 <tr>
 <td class="success">testToolSimple</td>
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformerTest.html b/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformerTest.html
index 72124e5..e225fa8 100644
--- a/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformerTest.html
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 <td class="success">passed</td>
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@@ -101,7 +101,7 @@
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 <td class="success">passed</td>
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@@ -111,7 +111,7 @@
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 <td class="success">passed</td>
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 <tr>
@@ -136,7 +136,7 @@
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 <td class="success">passed</td>
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@@ -149,7 +149,7 @@
 <input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
 </label>
 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
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diff --git a/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformersTest.html b/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformersTest.html
index d569032..5233a5c 100644
--- a/docs/test/classes/org.xbib.marc.transformer.MarcFieldTransformersTest.html
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@@ -76,7 +76,7 @@
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 <tr>
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@@ -96,7 +96,7 @@
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@@ -109,7 +109,7 @@
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 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
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diff --git a/docs/test/classes/org.xbib.marc.transformer.MarcValueTransformerTest.html b/docs/test/classes/org.xbib.marc.transformer.MarcValueTransformerTest.html
index 6c857c3..7b7242d 100644
--- a/docs/test/classes/org.xbib.marc.transformer.MarcValueTransformerTest.html
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@@ -76,22 +76,22 @@
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-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
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index 4e2aae5..0fe1a35 100644
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 </div>Generated by 
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 </table>
@@ -106,7 +106,7 @@
 <input id="line-wrapping-toggle" type="checkbox" autocomplete="off"/>
 </label>
 </div>Generated by 
-<a href="http://www.gradle.org">Gradle 3.2.1</a> at 04.01.2017 01:32:31</p>
+<a href="http://www.gradle.org">Gradle 3.2.1</a> at 08.01.2017 16:35:24</p>
 </div>
 </div>
 </body>
diff --git a/gradle.properties b/gradle.properties
index fa7bc05..0cfc885 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 group = org.xbib
 name = marc
-version = 1.0.8
\ No newline at end of file
+version = 1.0.9
\ No newline at end of file
diff --git a/src/docs/asciidoc/index.adoc b/src/docs/asciidoc/index.adoc
index f3d0ee6..1c7a1e2 100644
--- a/src/docs/asciidoc/index.adoc
+++ b/src/docs/asciidoc/index.adoc
@@ -35,6 +35,42 @@ and was targeted to write records on magnetic tape.
 Today, magnetic tape data distribution service is history. Also, file distribution via FTP, common in the 1990s,
 does not fit well into a highly linked and sophisticated  information infrastructure like the Semantic Web.
 
+== Charcter encoding support
+
+== Parsing MARC ISO 2709
+
+== Parsing MARC XML
+
+== Writing MARC ISO 2709
+
+== Writing MARC XML
+
+== Writing MARC JSON
+
+== MARC dialects
+
+=== Aleph
+
+=== MAB
+
+=== PICA
+
+=== SISIS
+
+=== UNIMARC
+
+=== Bibliomondo
+
+== MARC field transformations
+
+== MARC value transformations
+
+== Applying stylesheet transformation
+
+== Concurrency
+
+== Internal architecture
+
 == Javadoc
 
 The Javadoc can be found link:javadoc[here].
@@ -42,3 +78,19 @@ The Javadoc can be found link:javadoc[here].
 == Gradle test report
 
 The Gradle test report can be found link:test[here].
+
+== Copyright
+
+Copyright (C) 2016 Jörg Prante
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+you may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/src/main/java/org/xbib/marc/MarcField.java b/src/main/java/org/xbib/marc/MarcField.java
index 6b91e06..56006e7 100644
--- a/src/main/java/org/xbib/marc/MarcField.java
+++ b/src/main/java/org/xbib/marc/MarcField.java
@@ -110,6 +110,22 @@ public class MarcField implements Comparable<MarcField> {
         return subfields;
     }
 
+    /**
+     * Return first subfield or null. Avoids NoSuchElementException of java.util.LinkedList.
+     * @return first subfield or null
+     */
+    public Subfield getFirstSubfield() {
+        return subfields.isEmpty() ? Subfield.EMPTY_SUBFIELD : subfields.getFirst();
+    }
+
+    /**
+     * Return last subfield or null. Avoids NoSuchElementException of java.util.LinkedList.
+     * @return last subfield or null
+     */
+    public Subfield getLastSubfield() {
+        return subfields.isEmpty() ? Subfield.EMPTY_SUBFIELD : subfields.getLast();
+    }
+
     /**
      * Return the field value of this MAR field. Mostly used for control fields,
      * but also on formats that do not use subfields.
@@ -554,6 +570,8 @@ public class MarcField implements Comparable<MarcField> {
      */
     public static class Subfield {
 
+        static final Subfield EMPTY_SUBFIELD = new Subfield(null, null);
+
         private final String id;
 
         private final String value;
diff --git a/src/main/java/org/xbib/marc/transformer/field/MarcFieldTransformer.java b/src/main/java/org/xbib/marc/transformer/field/MarcFieldTransformer.java
index 1795cb1..93a74d8 100644
--- a/src/main/java/org/xbib/marc/transformer/field/MarcFieldTransformer.java
+++ b/src/main/java/org/xbib/marc/transformer/field/MarcFieldTransformer.java
@@ -221,7 +221,8 @@ public class MarcFieldTransformer extends LinkedHashMap<String, MarcField> {
         m = NREP.matcher(value);
         if (m.find()) {
             if (repeatCounter > 99) {
-                logger.log(Level.WARNING, "counter > 99, overflow in " + marcField);
+                repeatCounter = 99;
+                logger.log(Level.WARNING, "counter > 99, overflow in %s", marcField);
             }
             return m.replaceAll(String.format("%02d", repeatCounter));
         }
diff --git a/src/test/java/org/xbib/marc/MarcFieldTest.java b/src/test/java/org/xbib/marc/MarcFieldTest.java
index dc7b116..7ac75df 100644
--- a/src/test/java/org/xbib/marc/MarcFieldTest.java
+++ b/src/test/java/org/xbib/marc/MarcFieldTest.java
@@ -205,4 +205,21 @@ public class MarcFieldTest extends Assert {
         assertEquals(2, map.size());
     }
 
+    @Test
+    public void testFirstLastSubfields() {
+        MarcField marcField = MarcField.builder()
+                .tag("100")
+                .indicator("  ")
+                .subfield("a", "one")
+                .subfield("d", "two")
+                .subfield("e", "three")
+                .build();
+        assertEquals("one", marcField.getFirstSubfield().getValue());
+        assertEquals("three", marcField.getLastSubfield().getValue());
+
+        marcField = MarcField.builder().tag("100").build();
+        assertNull(marcField.getFirstSubfield().getValue());
+        assertNull(marcField.getLastSubfield().getValue());
+    }
+
 }
diff --git a/src/test/java/org/xbib/marc/MarcRoundTripTest.java b/src/test/java/org/xbib/marc/MarcRoundTripTest.java
new file mode 100644
index 0000000..853a4c8
--- /dev/null
+++ b/src/test/java/org/xbib/marc/MarcRoundTripTest.java
@@ -0,0 +1,72 @@
+package org.xbib.marc;
+
+import org.junit.Test;
+import org.xbib.marc.xml.MarcXchangeWriter;
+import org.xmlunit.matchers.CompareMatcher;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+
+import static org.junit.Assert.assertThat;
+
+/**
+ * This test reads ISO 2709 MARC files, werits them to XML, parses XML and writes ISO 2709,
+ * and parses them to XML again for comparison.
+ */
+public class MarcRoundTripTest {
+
+    @Test
+    public void testProperMarc() throws Exception {
+        for (String s : new String[]{
+                "summerland.mrc",
+                "chabon.mrc",
+                "chabon-loc.mrc"
+        }) {
+            InputStream in = getClass().getResource(s).openStream();
+            File file = File.createTempFile(s + ".", ".xml");
+            file.deleteOnExit();
+            try (FileOutputStream out = new FileOutputStream(file);
+                 MarcXchangeWriter writer = new MarcXchangeWriter(out)) {
+                Marc.builder()
+                        .setInputStream(in)
+                        .setCharset(Charset.forName("ANSEL"))
+                        .setMarcListener(writer)
+                        .build()
+                        .writeCollection();
+            }
+            // parse XML and write ISO 2709
+            in = new FileInputStream(file);
+            File orig = File.createTempFile(s + ".", ".orig");
+            orig.deleteOnExit();
+            // we do not support ANSEL writing yet
+            try (FileOutputStream out = new FileOutputStream(orig);
+                MarcWriter writer = new MarcWriter(out, StandardCharsets.UTF_8)) {
+                Marc.builder()
+                        .setInputStream(in)
+                        .setMarcListener(writer)
+                        .build()
+                        .xmlReader().parse();
+            }
+            // parse ISO 2709 again and write XML
+            in = new FileInputStream(orig);
+            File file2 = File.createTempFile(s + ".", ".2.xml");
+            file2.deleteOnExit();
+            try (FileOutputStream out = new FileOutputStream(file2);
+                 MarcXchangeWriter writer = new MarcXchangeWriter(out)) {
+                Marc.builder()
+                        .setInputStream(in)
+                        .setCharset(StandardCharsets.UTF_8)
+                        .setMarcListener(writer)
+                        .build()
+                        .writeCollection();
+            }
+            // compare both to expected file structure
+            assertThat(file, CompareMatcher.isIdenticalTo(getClass().getResource(s + ".xml").openStream()));
+            assertThat(file2, CompareMatcher.isIdenticalTo(getClass().getResource(s + ".xml").openStream()));
+        }
+    }
+}
diff --git a/src/test/java/org/xbib/marc/MarcTest.java b/src/test/java/org/xbib/marc/MarcTest.java
index 4a8dfcd..bad02d7 100644
--- a/src/test/java/org/xbib/marc/MarcTest.java
+++ b/src/test/java/org/xbib/marc/MarcTest.java
@@ -16,7 +16,6 @@
  */
 package org.xbib.marc;
 
-import org.junit.Assert;
 import org.junit.Test;
 import org.xbib.marc.io.ReplaceStringInputStream;
 import org.xbib.marc.transformer.value.MarcValueTransformers;
@@ -26,7 +25,6 @@ import org.xmlunit.matchers.CompareMatcher;
 
 import java.io.File;
 import java.io.FileOutputStream;
-import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
@@ -34,10 +32,15 @@ import java.text.Normalizer;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
 /**
  *
  */
-public class MarcTest extends Assert {
+public class MarcTest {
 
     @Test
     public void testProperMarc() throws Exception {