我在使用Proguard和外部库时遇到了问题。我的项目在编译时没有错误，在真实设备上成功运行，但只有在从Eclipse运行它时才能正常工作。现在我想制作一个混淆的发布版本，所以我按照以下步骤操作：
运行“android update project -p ./”
添加
proguard.dir=/home/stoned/android-sdk-linux_86/proguard4.5.1/lib
proguard.config=/home/stoned/workspace/Fidoo/proguard.cfg
当我运行 "ant release" 时，我得到以下结果：
... skipped many irrelevant messages ...
-obfuscate:
[mkdir] Created dir: /home/stoned/workspace/Fidoo/bin/proguard
[jar] Building jar: /home/stoned/workspace/Fidoo/bin/proguard/original.jar
[proguard] ProGuard, version 4.4
[proguard] ProGuard is released under the GNU General Public License. The authors of all
[proguard] programs or plugins that link to it (com.android.ant, ...) therefore
[proguard] must ensure that these programs carry the GNU General Public License as well.
[proguard] Reading input...
[proguard] Reading program jar [/home/stoned/workspace/Fidoo/bin/proguard/original.jar]
[proguard] Reading program jar [/home/stoned/workspace/Fidoo/libs/exapi-1.16.jar]
[proguard] Reading program jar [/home/stoned/workspace/Fidoo/libs/libthrift.jar]
[proguard] Reading program jar [/home/stoned/workspace/Fidoo/libs/log4j-1.2.14.jar]
[proguard] Reading library jar [/home/stoned/android-sdk-linux_86/platforms/android-4/android.jar]
[proguard] Initializing...
[proguard] Warning: org.apache.log4j.lf5.viewer.categoryexplorer.CategoryNodeRenderer: can't find superclass or interface javax.swing.tree.DefaultTreeCellRenderer
[proguard] Warning: org.apache.log4j.lf5.viewer.categoryexplorer.TreeModelAdapter: can't find superclass or interface javax.swing.event.TreeModelListener
[proguard] Warning: org.apache.log4j.lf5.viewer.LogBrokerMonitor$32: can't find superclass or interface java.awt.event.ActionListener
[proguard] Warning: org.apache.log4j.lf5.viewer.LogBrokerMonitor$31: can't find superclass or interface java.awt.event.ActionListener
... skipped many lines of similar messages ...
[proguard] Note: org.apache.log4j.lf5.viewer.categoryexplorer.CategoryAbstractCellEditor: can't find dynamically referenced class javax.swing.event.CellEditorListener
[proguard] Note: org.apache.log4j.lf5.viewer.categoryexplorer.CategoryAbstractCellEditor: can't find dynamically referenced class javax.swing.event.CellEditorListener
[proguard] Note: org.apache.log4j.lf5.viewer.categoryexplorer.CategoryAbstractCellEditor: can't find dynamically referenced class javax.swing.event.CellEditorListener
[proguard] Note: org.apache.log4j.lf5.viewer.categoryexplorer.CategoryAbstractCellEditor: can't find dynamically referenced class javax.swing.event.CellEditorListener
[proguard] Note: org.apache.log4j.spi.LocationInfo: can't find dynamically referenced class com.ibm.uvm.tools.DebugSupport
[proguard] Note: there were 5 unresolved dynamic references to classes or interfaces.
[proguard] You should check if you need to specify additional program jars.
[proguard] Warning: there were 1656 unresolved references to classes or interfaces.
[proguard] You may need to specify additional library jars (using '-libraryjars'),
[proguard] or perhaps the '-dontskipnonpubliclibraryclasses' option.
很明显，在Android应用程序中不需要javax.swing类和log4j类。我该如何让Proguard不搜索这些已引用的库？