Proguard dontwarn and dontnote do not take effect

Question

I am creating an Android project that has some buildTypes that use Proguard. During the build, I see a ton of warnings from Proguard. Since these warnings are generated for the third-party classes that I use, I try to use the -dontwarn flag and the -dontnote flag in the 'proguard-rules.pro' file so that I do not see the error output in the future, However, the problem I see , is that even after I add these flags to my .pro file and set the .pro file in the build.gradle file, I still see warnings that come up when creating the project.

Here is the relevant part of the build.gradle file:

    buildTypes {
        debug {
            applicationIdSuffix ".debug"
        }

        unitTest {
            applicationIdSuffix ".unittest"
            minifyEnabled true
//            proguardFiles getDefaultProguardFile("proguard-android.txt")
            proguardFile('proguard-rules.pro')
        }

        automation {
            applicationIdSuffix ".automation"
            minifyEnabled true
//            proguardFile getDefaultProguardFile('proguard-android.txt')
            proguardFile('proguard-rules.pro')

        }

        internal {
            applicationIdSuffix ".internal"
            minifyEnabled true
//            proguardFiles getDefaultProguardFile('proguard-android.txt')
            proguardFile('proguard-rules.pro')
        }

        release {
            minifyEnabled true
//            proguardFiles getDefaultProguardFile("proguard-android.txt")
            proguardFile("proguard-rules.pro")
        }
    }

Here is my proguard-rules.pro file:

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
# directive in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}

# Disabling obfuscation is useful if you collect stack traces from production crashes
# (unless you are using a system that supports de-obfuscate the stack traces).
-dontobfuscate

# React Native

# Keep our interfaces so they can be used by other ProGuard rules.
# See http://sourceforge.net/p/proguard/bugs/466/
-keep,allowobfuscation @interface com.facebook.proguard.annotations.DoNotStrip
-keep,allowobfuscation @interface com.facebook.proguard.annotations.KeepGettersAndSetters

# Do not strip any method/class that is annotated with @DoNotStrip
-keep @com.facebook.proguard.annotations.DoNotStrip class *
-keepclassmembers class * {
    @com.facebook.proguard.annotations.DoNotStrip *;
}

-keepclassmembers @com.facebook.proguard.annotations.KeepGettersAndSetters class * {
  void set*(***);
  *** get*();
}

-keep class * extends com.facebook.react.bridge.JavaScriptModule { *; }
-keep class * extends com.facebook.react.bridge.NativeModule { *; }
-keepclassmembers,includedescriptorclasses class * { native <methods>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.UIProp <fields>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.annotations.ReactProp <methods>; }
-keepclassmembers class *  { @com.facebook.react.uimanager.annotations.ReactPropGroup <methods>; }

-dontwarn com.facebook.react.**

# okhttp

-keepattributes Signature
-keepattributes *Annotation*
-keep class com.squareup.okhttp.** { *; }
-keep interface com.squareup.okhttp.** { *; }
-dontwarn com.squareup.okhttp.**

# okio

-keep class sun.misc.Unsafe { *; }
-dontwarn java.nio.file.*
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-dontwarn okio.**

# stetho

-dontwarn com.facebook.stetho.**

##ADDED TO GET WARNINGS TO GO AWAY BUT NEEDS TO BE EVALED BEFORE RELEASE
-dontnote junit.runner.*
-dontnote junit.framework.*
-dontwarn org.hamcrest.**
-dontwarn android.support.test.**

: proguard-rules.pro project/app/ build.gradle, .

, gradle:

Note: duplicate definition of library class [junit.runner.Version]
Note: duplicate definition of library class [junit.runner.BaseTestRunner]
Note: duplicate definition of library class [junit.framework.Protectable]
Note: duplicate definition of library class [junit.framework.Assert]
Note: duplicate definition of library class [junit.framework.TestSuite]
Note: duplicate definition of library class [junit.framework.Test]
Note: duplicate definition of library class [junit.framework.ComparisonFailure]
Note: duplicate definition of library class [junit.framework.TestFailure]
Note: duplicate definition of library class [junit.framework.TestCase]
Note: duplicate definition of library class [junit.framework.AssertionFailedError]
Note: duplicate definition of library class [junit.framework.TestListener]
Note: duplicate definition of library class [junit.framework.TestResult]
Reading library jar [/Users/dhodapp/Library/Android/sdk/platforms/android-23/optional/org.apache.http.legacy.jar]
Note: duplicate definition of library class [android.net.http.SslCertificate]
Note: duplicate definition of library class [android.net.http.SslError]
Note: duplicate definition of library class [android.net.http.SslCertificate$DName]
Note: duplicate definition of library class [org.apache.http.conn.scheme.SocketFactory]
Note: duplicate definition of library class [org.apache.http.conn.scheme.HostNameResolver]
Note: duplicate definition of library class [org.apache.http.conn.ConnectTimeoutException]
Note: duplicate definition of library class [org.apache.http.params.HttpParams]
Note: there were 19 duplicate class definitions.
      (http://proguard.sourceforge.net/manual/troubleshooting.html#duplicateclass)
Warning: org.hamcrest.integration.EasyMock2Adapter: can't find superclass or interface org.easymock.IArgumentMatcher
Warning: org.hamcrest.integration.JMock1Adapter: can't find superclass or interface org.jmock.core.Constraint
Warning: library class android.test.AndroidTestCase extends or implements program class junit.framework.TestCase
Warning: library class android.test.AndroidTestRunner extends or implements program class junit.runner.BaseTestRunner
Warning: library class android.test.InstrumentationTestCase extends or implements program class junit.framework.TestCase
Warning: library class android.test.InstrumentationTestSuite extends or implements program class junit.framework.TestSuite

, proguard-rules.pro?