diff -r 000000000000 -r a7e6f84fb078 task2/solution13/src/org/apidesign/apifest08/currency/ConversionNotSupportedException.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/task2/solution13/src/org/apidesign/apifest08/currency/ConversionNotSupportedException.java	Tue Oct 07 01:18:23 2008 +0200
@@ -0,0 +1,85 @@
+package org.apidesign.apifest08.currency;
+
+/**
+ * Conversion not suported exception. This expecption may optionaly describe which conversion was required and failed.
+ * Required conversion can be found in {@link #getFromCurrecyCode() } and {@link #getToCurrecyCode() }.
+ * 
+ * @author arnostvalicek
+ * @since version2
+ */
+public class ConversionNotSupportedException extends ConvertorException {
+    String from;
+    String to;
+    boolean reversed;
+    
+    public ConversionNotSupportedException() {
+        super();
+    }
+
+    public ConversionNotSupportedException(String message) {
+        super(message);
+    }
+
+    public ConversionNotSupportedException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ConversionNotSupportedException(Throwable cause) {
+        super(cause);
+    }
+    
+    /**
+     * Create exception witd additional information about currencies which are not supported in coversion.
+     * @param from Code of source currency.
+     * @param to Code of target currency.
+     * @param twoWay Set to <code>false</code> if <em>From-&gt;To</em> is not supported.
+     *               Set to <code>true</code> if both ways <em>From-&gt;To</em> and <em>To->From</em> conversions are not supported.
+     *               
+     */
+    public ConversionNotSupportedException(String from, String to, boolean twoWay) {
+        this.from = from;
+        this.to = to;
+        this.reversed = true;
+    }
+
+    @Override
+    public String toString() {
+        if (from!=null && to !=null) {
+          if (reversed) {
+             return "Neither onversion nor reverted conversion from " + from + " to " + to + "  is not supported,"; 
+          }  else {
+             return "Conversion from " + from + " to " + to + "  is not supported,"; 
+          }
+        } else {
+            return super.toString();
+        }
+    }
+    
+    /**
+     * Returns code of source currency. This value may be null.
+     * @return Returns code of source currency.
+     */
+    public String getFromCurrecyCode() {
+        return from;
+    }
+
+    /**
+     * Returns code of target currency. This value may be null.
+     * @return Returns code of target currency.
+     */    public String getToCurrecyCode() {
+        return to;
+    }
+     
+    /**
+     * Returns if one way of two way conversion is not supported.
+     * 
+     * Value <code>false</code> means one way conversion is not supported. Value <code>true</code> means
+     * that two way conversio is not supported.
+     * 
+     * @return Returs <code>false</code> for one way conversion, <code>true</code> for two way conversion.
+     */ 
+    public boolean getTwoWayConversion() {
+        return reversed;
+    }
+
+}