grep -nR "import java\\." | grep -v test | grep -v androidTest | grep -v buildSrc | grep -v android-studio-ide | grep "import java."

gistfile1.txt

/sources/android/frameworks/support/ui$ grep -nR "import java\\." | grep -v test | grep -v androidTest | grep -v buildSrc | grep -v android-studio-ide | grep "import java."
framework/src/main/java/androidx/ui/core/vectorgraphics/compat/VectorResource.kt:47:import java.io.IOException
framework/src/main/java/androidx/ui/core/TextSpanCompose.kt:28:import java.util.WeakHashMap
text/src/main/java/androidx/ui/engine/text/ParagraphBuilder.kt:18:import java.util.LinkedList
text/src/main/java/androidx/ui/engine/text/ParagraphBuilder.kt:19:import java.util.Stack
text/src/main/java/androidx/ui/engine/text/platform/ParagraphAndroid.kt:71:import java.util.Locale
demos/src/main/java/androidx/ui/demos/MainActivity.kt:25:import java.text.Collator
demos/src/main/java/androidx/ui/demos/MainActivity.kt:26:import java.util.ArrayList
demos/src/main/java/androidx/ui/demos/MainActivity.kt:27:import java.util.Comparator
demos/src/main/java/androidx/ui/demos/MainActivity.kt:28:import java.util.HashMap
core/src/main/java/androidx/ui/painting/Image.kt:23:import java.io.ByteArrayOutputStream
core/src/main/java/androidx/ui/painting/Image.kt:24:import java.nio.ByteBuffer
android-text/src/main/java/androidx/text/LayoutCompat.java:28:import java.lang.annotation.Retention;
android-text/src/main/java/androidx/text/LayoutCompat.java:29:import java.lang.annotation.RetentionPolicy;
android-text/src/main/java/androidx/text/Preconditions.java:23:import java.util.Locale;
android-text/src/main/java/androidx/text/selection/WordIterator.java:24:import java.text.BreakIterator;
android-text/src/main/java/androidx/text/selection/WordIterator.java:25:import java.util.Locale;
android-text/src/main/java/androidx/text/selection/WordBoundary.java:23:import java.text.BreakIterator;
android-text/src/main/java/androidx/text/selection/WordBoundary.java:24:import java.util.Locale;
android-text/src/main/java/androidx/text/style/WordSpacingSpan.java:30:import java.lang.reflect.InvocationTargetException;
android-text/src/main/java/androidx/text/style/WordSpacingSpan.java:31:import java.lang.reflect.Method;
android-text/src/main/java/androidx/text/CharSequenceCharacterIterator.java:21:import java.text.CharacterIterator;
android-text/src/main/java/androidx/text/StaticLayoutCompat.java:50:import java.lang.reflect.Constructor;
android-text/src/main/java/androidx/text/StaticLayoutCompat.java:51:import java.lang.reflect.InvocationTargetException;
android-view-non-ir/src/main/java/androidx/ui/androidview/adapters/CalendarViewInputController.kt:20:import java.util.Calendar