bugzilla: 42142 add name of missing archive for zipfileset

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@529630 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Unpack.java

@@ -83,16 +83,21 @@ public abstract class Unpack extends Task {
      */
     public void setSrcResource(Resource src) {
         if (!src.isExists()) {
-            throw new BuildException("the archive doesn't exist");
+            throw new BuildException(
+                "the archive " + src.getName() + " doesn't exist");
         }
         if (src.isDirectory()) {
-            throw new BuildException("the archive can't be a directory");
+            throw new BuildException(
+                "the archive " + src.getName() + " can't be a directory");
         }
         if (src instanceof FileResource) {
             source = ((FileResource) src).getFile();
         } else if (!supportsNonFileResources()) {
-            throw new BuildException("Only FileSystem resources are"
-                                     + " supported.");
+            throw new BuildException(
+                "The source " + src.getName()
+                + " is not a FileSystem "
+                + "Only FileSystem resources are"
+                + " supported.");
         }
         srcResource = src;
     }

src/main/org/apache/tools/ant/types/ArchiveFileSet.java

@@ -242,10 +242,12 @@ public abstract class ArchiveFileSet extends FileSet {
             return super.getDirectoryScanner(p);
         }
         if (!src.isExists()) {
-            throw new BuildException("the archive doesn't exist");
+            throw new BuildException(
+                "the archive " + src.getName() + " doesn't exist");
         }
         if (src.isDirectory()) {
-            throw new BuildException("the archive can't be a directory");
+            throw new BuildException("the archive " + src.getName()
+                                     + " can't be a directory");
         }
         ArchiveScanner as = newArchiveScanner();
         as.setSrc(src);