2 files changed, 12 insertions, 5 deletions
diff --git a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyEntry.java b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyEntry.java
index d02c7bbc..0b9b21af 100644
--- a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyEntry.java
+++ b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyEntry.java
@@ -1,11 +1,15 @@
 package at.gv.egiz.pdfas.api.ws;
 
+import java.io.Serializable;
+
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlType;
 
-@XmlType(name="PropertyEntry")
-public class PDFASPropertyEntry {
-	String key;
+@XmlType(name="PropertyEntry") 
+public class PDFASPropertyEntry implements Serializable {
+	private static final long serialVersionUID = -312145729002273058L;
+	
+  String key;
 	String value;
 	
 	@XmlElement(required = true, nillable = false, name="key")
diff --git a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyMap.java b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyMap.java
index 34dca6d2..c3949849 100644
--- a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyMap.java
+++ b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/api/ws/PDFASPropertyMap.java
@@ -1,5 +1,6 @@
 package at.gv.egiz.pdfas.api.ws;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -11,8 +12,10 @@ import javax.xml.bind.annotation.XmlTransient;
 import javax.xml.bind.annotation.XmlType;
 
 @XmlType(name="PropertyMap")
-public class PDFASPropertyMap {
-	List<PDFASPropertyEntry> propertyEntries;
+public class PDFASPropertyMap implements Serializable {	
+  private static final long serialVersionUID = -8099703140108251423L;
+  
+  List<PDFASPropertyEntry> propertyEntries;
 	
 	@XmlElement(required = true, nillable = false, name="propertyEntries")
 	public List<PDFASPropertyEntry> getPropertyEntries() {