Prevent closing objects that may not exist.

brut.apktool/apktool-cli/src/main/java/brut/apktool/Main.java

@@ -190,10 +190,9 @@ public class Main {
         } finally {
             try {
                 decoder.close();
-            } catch (IOException e) {
-            }
+            } catch (IOException ignored) {}
         }
-
+        System.exit(0);
     }
 
     private static void cmdBuild(CommandLine cli) throws BrutException {

brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java

@@ -286,7 +286,9 @@ public class ApkDecoder {
     }
 
     public void close() throws IOException {
-        mAndrolib.close();
+        if (mAndrolib != null) {
+            mAndrolib.close();
+        }
     }
 
     public final static short DECODE_SOURCES_NONE = 0x0000;

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/AndrolibResources.java

@@ -819,7 +819,9 @@ final public class AndrolibResources {
     }
 
     public void close() throws IOException {
-        mFramework.close();
+        if (mFramework != null) {
+            mFramework.close();
+        }
     }
 
     public ApkOptions apkOptions;