tag release candidate for Compress Antlib 1.3

git-svn-id: https://svn.apache.org/repos/asf/ant/antlibs/compress/tags/1_3_RC1@1536053 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/org/apache/ant/compress/resources/SevenZScanner.java b/src/main/org/apache/ant/compress/resources/SevenZScanner.java
index 8d4c269..4ec677a 100644
--- a/src/main/org/apache/ant/compress/resources/SevenZScanner.java
+++ b/src/main/org/apache/ant/compress/resources/SevenZScanner.java
@@ -121,7 +121,11 @@
             }
         } finally {
             if (zf != null) {
-                zf.close();
+                try {
+                    zf.close();
+                } catch (IOException ex) {
+                    // swallow
+                }
             }
         }
     }
diff --git a/src/main/org/apache/ant/compress/taskdefs/Un7z.java b/src/main/org/apache/ant/compress/taskdefs/Un7z.java
index f45edb5..d21e8be 100644
--- a/src/main/org/apache/ant/compress/taskdefs/Un7z.java
+++ b/src/main/org/apache/ant/compress/taskdefs/Un7z.java
@@ -95,7 +95,11 @@
                 ioe);
         } finally {
             if (outer != null) {
-                outer.close();
+                try {
+                    outer.close();
+                } catch (IOException ex) {
+                    // swallow
+                }
             }
         }
     }
diff --git a/src/main/org/apache/ant/compress/util/SevenZStreamFactory.java b/src/main/org/apache/ant/compress/util/SevenZStreamFactory.java
index a9d1269..40d3517 100644
--- a/src/main/org/apache/ant/compress/util/SevenZStreamFactory.java
+++ b/src/main/org/apache/ant/compress/util/SevenZStreamFactory.java
@@ -112,7 +112,7 @@
             zipFile = new SevenZOutputFile(file);
         }
 
-        public void close() {
+        public void close() throws IOException {
             zipFile.close();
         }