diff --git a/src/etc/testcases/taskdefs/libraries.xml b/src/etc/testcases/taskdefs/libraries.xml
index e2f7c1502..2cfed3383 100644
--- a/src/etc/testcases/taskdefs/libraries.xml
+++ b/src/etc/testcases/taskdefs/libraries.xml
@@ -9,8 +9,9 @@
     <property name="lib.dir" value="getlib"/>
     
     <property name="commons.logging.project" value="commons-logging"/>
-    <property name="commons.logging" 
-      value="${commons.logging.project}/jars/${commons.logging.project}-1.0.1.jar"/>
+    <property name="version" value="1.0.4"/>
+    <property name="commons.logging"
+      value="${commons.logging.project}/jars/${commons.logging.project}-${version}.jar"/>
 
     <presetdef name="gl1">
       <libraries destDir="${lib.dir}">
@@ -19,7 +20,8 @@
 
     <presetdef name="getlib">
       <gl1 destDir="${lib.dir}">
-        <library archive="commons-logging" project="commons-logging" version="1.0.1"/>
+        <library archive="commons-logging" project="commons-logging"
+          version="${version}"/>
       </gl1>
     </presetdef>
 
@@ -112,7 +114,7 @@
   <target name="testRenaming" depends="init">
     <getlib>
       <mavenrepository/>
-      <library archive="commons-logging" project="commons-logging" version="1.0.1"
+      <library archive="commons-logging" project="commons-logging" version="${version}"
         destinationName="renamed.jar"
         />
     </getlib>
@@ -135,8 +137,7 @@
   <target name="testIf" depends="init">
     <gl1>
       <mavenrepository/>
-      <library archive="commons-logging" project="commons-logging" version="1.0.1"
-        enabled="true"/>
+      <library archive="commons-logging" project="commons-logging" version="${version}" enabled="true"/>
     </gl1>
     <assert-downloaded/>
   </target>
@@ -144,7 +145,7 @@
   <target name="testUnless" depends="init">
     <gl1>
       <mavenrepository/>
-      <library archive="commons-logging" project="commons-logging" version="1.0.1"
+      <library archive="commons-logging" project="commons-logging" version="${version}"
         enabled="false"/>
     </gl1>
     <assert-not-downloaded/>
@@ -256,5 +257,55 @@
       <assertdownloaded count="152" />
     </getlib>
   </target>  
+  
+  
+  <target name="testNoArchiveName" depends="init">
+    <gl1 destDir="${lib.dir}" >
+      <library project="commons-logging" version="${version}"/>
+      <mavenrepository/>
+      <assertdownloaded count="1"/>
+    </gl1>
+  </target>
+
+  <target name="testNoVersion" depends="init">
+    <gl1 destDir="${lib.dir}" offline="true">
+      <library project="commons-logging" />
+      <mavenrepository/>
+    </gl1>
+  </target>
+
+  <target name="testNoProject" depends="init">
+    <gl1 destDir="${lib.dir}" offline="true">
+      <library archive="commons-logging" version="${version}"/>
+      <mavenrepository/>
+    </gl1>
+  </target>
+
+  <target name="testNewSuffix" depends="init">
+    <gl1 destDir="${lib.dir}">
+      <library project="commons-logging" version="${version}"
+        suffix=".jar.asc"/>
+      <mavenrepository checkMD5="false"/>
+      <assertdownloaded count="1"/>
+    </gl1>
+  </target>
+
+  <target name="testNoSuffix" depends="init">
+    <gl1 destDir="${lib.dir}">
+      <library project="commons-logging" version="snapshot-version" suffix=""/>
+      <assertdownloaded count="1"/>
+      <mavenrepository checkMD5="false"/>
+    </gl1>
+  </target>
+
+  <target name="testEmptyArchive" depends="init">
+    <gl1 destDir="${lib.dir}">
+      <library project="commons-logging" version="${version}"
+        archive=""/>
+      <assertdownloaded count="1"/>
+      <mavenrepository/>
+    </gl1>
+  </target>
+
 </project>
 
diff --git a/src/main/org/apache/tools/ant/taskdefs/repository/Library.java b/src/main/org/apache/tools/ant/taskdefs/repository/Library.java
index 445d21bb5..62366e797 100644
--- a/src/main/org/apache/tools/ant/taskdefs/repository/Library.java
+++ b/src/main/org/apache/tools/ant/taskdefs/repository/Library.java
@@ -80,18 +80,20 @@ public class Library implements EnabledLibraryElement {
      */
     private boolean toFetch = true;
 
+    /**
+     * flag set after fetching
+     */
     private boolean fetched = false;
 
     public static final String ERROR_NO_ARCHIVE = "No archive defined";
     public static final String ERROR_NO_PROJECT = "No project defined";
     public static final String ERROR_NO_VERSION = "No version defined";
-    public static final String ERROR_NO_SUFFIX = "No version defined";
+    public static final String ERROR_FILE_IS_A_DIR = "Library file is a directory:";
 
     /**
      * suffix
      */
-    private String suffix = "jar";
-    public static final String ERROR_FILE_IS_A_DIR = "Library file is a directory:";
+    private String suffix = ".jar";
 
 
     /**
@@ -169,7 +171,7 @@ public class Library implements EnabledLibraryElement {
     }
 
     /**
-     * set the suffix for this file; default is "jar"
+     * set the suffix for this file; default is ".jar"
      * @param suffix
      */
     public void setSuffix(String suffix) {
@@ -213,10 +215,16 @@ public class Library implements EnabledLibraryElement {
      * @throws BuildException if invalid
      */
     public void validate() {
-        faultIfEmpty(archive, ERROR_NO_ARCHIVE);
         faultIfEmpty(project, ERROR_NO_PROJECT);
+        if(archive==null) {
+            //adopt the name of the project if no archive is specced
+            archive=project;
+        }
+        faultIfEmpty(archive, ERROR_NO_ARCHIVE);
         faultIfEmpty(version, ERROR_NO_VERSION);
-        faultIfEmpty(version, ERROR_NO_SUFFIX);
+        if(suffix==null) {
+            suffix="";
+        }
     }
 
     /**
@@ -278,7 +286,7 @@ public class Library implements EnabledLibraryElement {
      *         source
      */
     public String getNormalFilename() {
-        return archive + "-" + version + "." + suffix;
+        return archive + "-" + version + suffix;
     }
 
     /**
diff --git a/src/testcases/org/apache/tools/ant/taskdefs/LibrariesTest.java b/src/testcases/org/apache/tools/ant/taskdefs/LibrariesTest.java
index 588bbc42f..046c6d25c 100644
--- a/src/testcases/org/apache/tools/ant/taskdefs/LibrariesTest.java
+++ b/src/testcases/org/apache/tools/ant/taskdefs/LibrariesTest.java
@@ -19,6 +19,7 @@ package org.apache.tools.ant.taskdefs;
 import org.apache.tools.ant.BuildFileTest;
 import org.apache.tools.ant.taskdefs.repository.AssertDownloaded;
 import org.apache.tools.ant.taskdefs.repository.Libraries;
+import org.apache.tools.ant.taskdefs.repository.Library;
 
 /**
  * test the test libraries stuff.
@@ -179,4 +180,28 @@ public class LibrariesTest extends BuildFileTest {
                 "Wrong count in assertdownloaded",
                 AssertDownloaded.ERROR_DOWNLOAD_FAILURE);
     }
+
+    public void testNoVersion() {
+        expectBuildException("testNoVersion",
+                Library.ERROR_NO_PROJECT);
+    }
+
+    public void testNoProject() {
+        expectBuildException("testNoProject",
+                Library.ERROR_NO_PROJECT);
+    }
+
+    public void testNoArchiveName() {
+        execIfOnline("testNoArchiveName");
+    }
+
+    public void testEmptyArchive() {
+        expectBuildException("testEmptyArchive",
+                Library.ERROR_NO_ARCHIVE);
+    }
+
+    public void testNoSuffix() {
+        execIfOnline("testNoSuffix");
+    }
+
 }