Java ProGuard:Warning:org.apache.commons.beanutils.BeanMap$2:can'；找不到超类或接口org.apache.commons.collections.Transformer

在Android应用程序上使用Proguard时，我遇到以下错误

ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$2: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$3: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$4: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$5: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$6: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$7: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$8: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$9: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanMap$Entry: can't find superclass or interface org.apache.commons.collections.keyvalue.AbstractMapEntry
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanPredicate: can't find superclass or interface org.apache.commons.collections.Predicate
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanPropertyValueChangeClosure: can't find superclass or interface org.apache.commons.collections.Closure
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanPropertyValueEqualsPredicate: can't find superclass or interface org.apache.commons.collections.Predicate
ProGuard: [sand] Warning: org.apache.commons.beanutils.BeanToPropertyValueTransformer: can't find superclass or interface org.apache.commons.collections.Transformer
ProGuard: [sand] Warning: org.apache.commons.beanutils.MappedPropertyDescriptor: can't find superclass or interface java.beans.PropertyDescriptor
ProGuard: [sand] Warning: org.apache.commons.logging.impl.ServletContextCleaner: can't find superclass or interface javax.servlet.ServletContextListener
ProGuard: [sand] Warning: roboguice.activity.RoboMapActivity: can't find superclass or interface com.google.android.maps.MapActivity
ProGuard: [sand] Warning: roboguice.test.shadow.ShadowFragmentActivity: can't find superclass or interface com.xtremelabs.robolectric.shadows.ShadowActivity
ProGuard: [sand] Warning: library class org.apache.http.auth.AuthenticationException extends or implements program class org.apache.http.ProtocolException
ProGuard: [sand] Warning: library class org.apache.http.auth.MalformedChallengeException extends or implements program class org.apache.http.ProtocolException
ProGuard: [sand] Warning: library class org.apache.http.auth.params.AuthParamBean extends or implements program class org.apache.http.params.HttpAbstractParamBean

    ... keeps going till 743 errors (warnings)

我尝试了几种方法来防止这种情况发生（-dontskipnonpubliclibraryclassmembers，-keep，-dontwarn，-ignorewarnings），但没有成功。也许我没有正确使用这些选项。我正在使用IntelliJ，目标是android-19（android 4.4.2）

该应用程序使用一些第三方库构建：一些包含在libs文件夹中，一些包含在Maven pom.xml中。我怀疑通过pom.xml包含的库没有包含在-libraryjars选项中

我的project.properties如下所示：

# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
proguard.config=${sdk.dir}/tools/proguard/proguard-android-optimize.txt:proguard-project.txt

# Project target.
target=android-19

-dontskipnonpubliclibraryclassmembers

# Libraries
-dontwarn org.apache.**

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

# WebView with JS: specify the fully qualified class name to the JavaScript interface class:
-keepclassmembers class fqcn.of.javascript.interface.for.webview {
   public *;
}

# Database model
-keep class com.mycompany.model.db.**
-keepclassmembers class com.mycompany.model.db.** { *; }

# Project target.
target=android-19

我的proguard-project.txt如下所示：

# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
proguard.config=${sdk.dir}/tools/proguard/proguard-android-optimize.txt:proguard-project.txt

# Project target.
target=android-19

-dontskipnonpubliclibraryclassmembers

# Libraries
-dontwarn org.apache.**

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

# WebView with JS: specify the fully qualified class name to the JavaScript interface class:
-keepclassmembers class fqcn.of.javascript.interface.for.webview {
   public *;
}

# Database model
-keep class com.mycompany.model.db.**
-keepclassmembers class com.mycompany.model.db.** { *; }

# Project target.
target=android-19

---

知道为什么会这样吗？

我解决了这个问题。这是由IntelliJ安装中的配置问题引起的：

项目右键单击->打开模块设置->面选项->编译器选项卡：

确保已启用Proguard

确保配置文件路径应显示：

• 我们项目中的proguard-project.txt文件
• SDK中的proguard-android.txt

在我的例子中，它只显示SDK中的一个，所以我在项目中对文件所做的更改没有被考虑在内

在这个更改之后，我可以使用Proguard文档中显示的Proguard选项并修复这些警告

文件project.properties由IntelliJ自动生成，不应手动修改。即使此文件显示它正在使用这两个文件进行配置，也不一定是真的，请查看“设置”对话框