diff --git a/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/PluginUtilsTest.java b/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/PluginUtilsTest.java
index 93396e7..047f0ea 100644
--- a/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/PluginUtilsTest.java
+++ b/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/PluginUtilsTest.java
@@ -27,7 +27,6 @@ import org.codehaus.plexus.util.xml.CompactXMLWriter;
 import org.codehaus.plexus.util.xml.XMLWriter;
 
 import java.io.StringWriter;
-import java.io.UnsupportedEncodingException;
 import java.util.Collections;
 
 /**
@@ -72,7 +71,7 @@ public class PluginUtilsTest
         assertEquals( pattern, output );
     }
 
-    public void testShouldFindTwoScriptsWhenNoExcludesAreGiven() throws UnsupportedEncodingException
+    public void testShouldFindTwoScriptsWhenNoExcludesAreGiven()
     {
         String testScript = "test.txt";
 
@@ -84,7 +83,7 @@ public class PluginUtilsTest
         assertEquals( 2, files.length );
     }
 
-    public void testShouldFindOneScriptsWhenAnExcludeIsGiven() throws UnsupportedEncodingException
+    public void testShouldFindOneScriptsWhenAnExcludeIsGiven()
     {
         String testScript = "test.txt";
 
diff --git a/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/TestUtils.java b/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/TestUtils.java
index cc5a254..925caa8 100644
--- a/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/TestUtils.java
+++ b/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/util/TestUtils.java
@@ -43,7 +43,7 @@ public class TestUtils
         assertEquals( URLDecoder.decode( resource.getPath(), "UTF-8" ), basedir + classname );
     }
 
-    public static String dirname( String file ) throws UnsupportedEncodingException
+    public static String dirname( String file )
     {
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         URL fileResource = cl.getResource( file );
@@ -52,7 +52,19 @@ public class TestUtils
 
         String path = fullPath.substring( 0, fullPath.length() - file.length() );
 
-        return URLDecoder.decode( path, "UTF-8" ); // necessary for JDK 1.5+, where spaces are escaped to %20
+        try
+        {
+            /*
+             * FIXME: URL encoding and HTML form encoding are not the same. Use FileUtils.toFile(URL) from plexus-utils
+             * once PLXUTILS-56 is released.
+             */
+            // necessary for JDK 1.5+, where spaces are escaped to %20
+            return URLDecoder.decode( path, "UTF-8" );
+        }
+        catch ( UnsupportedEncodingException e )
+        {
+            throw new Error( "Broken JVM, UTF-8 must be supported", e );
+        }
     }
 
-}
\ No newline at end of file
+}
diff --git a/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/java/JavaMojoDescriptorExtractorTest.java b/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/java/JavaMojoDescriptorExtractorTest.java
index 8eb49d3..32ae8b8 100644
--- a/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/java/JavaMojoDescriptorExtractorTest.java
+++ b/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/java/JavaMojoDescriptorExtractorTest.java
@@ -106,7 +106,7 @@ public class JavaMojoDescriptorExtractorTest
         assertEquals( "Implementation parameter", "source2.sub.MyBla", parameter.getImplementation() );
     }
 
-    private File fileOf( String classpathResource ) throws UnsupportedEncodingException
+    private File fileOf( String classpathResource )
     {
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         URL resource = cl.getResource( classpathResource );
@@ -114,8 +114,19 @@ public class JavaMojoDescriptorExtractorTest
         File result = null;
         if ( resource != null )
         {
-            // URLDecoder.decode necessary for JDK 1.5+, where spaces are escaped to %20
-            result = new File( URLDecoder.decode( resource.getPath(), "UTF-8" ) );
+            try
+            {
+                /*
+                 * FIXME: URL encoding and HTML form encoding are not the same. Use FileUtils.toFile(URL) from
+                 * plexus-utils once PLXUTILS-56 is released.
+                 */
+                // URLDecoder.decode necessary for JDK 1.5+, where spaces are escaped to %20
+                result = new File( URLDecoder.decode( resource.getPath(), "UTF-8" ) );
+            }
+            catch ( UnsupportedEncodingException e )
+            {
+                throw new Error( "Broken JVM, UTF-8 must be supported", e );
+            }
         }
 
         return result;