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public class LazyListManagerUtils {

  public static <T> List<T> add(List<T> list, T item) {
		if (list == null) {
			list = new ArrayList<T>();
			list.add(item);
		}
		else if (!list.contains(item)) {
			list.add(item);
		}

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package rx.android.lifecycle;

import android.app.Activity;
import android.app.Application;
import android.content.Context;
import android.os.Bundle;
import rx.Observable;
import rx.subjects.BehaviorSubject;

import java.util.Map;

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if (project.android.hasProperty('libraryVariants')) {
    android.libraryVariants.all { variant ->
        Task javadocTask = task("generate${variant.name.capitalize()}Javadoc", type: Javadoc) {
            group = 'artifact'
            description "Generates Javadoc for $variant.name"

            // Source files from the variant
            source = variant.javaCompiler.source

            // Classpath from the variant + android.jar

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import xml.etree.ElementTree as ET
tree = ET.parse('/path/to/save/file')
root = tree.getroot()
locations = root.find('locations')

for location in locations:
	name = location.find('name').text
	objects = location.find('objects')

	for thing in objects:

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/**
 * Returns the Java Compilation task if javac was configured to compile the source files.
 * @deprecated prefer {@link #getJavaCompiler} which always return the java compiler task
 * irrespective of which tool chain (javac or jack) used.
 */
@Nullable
@Deprecated
JavaCompile getJavaCompile() throws IllegalStateException;

/**

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<activity
    android:name="com.yourapp.ui.NoteTaker">
    <intent-filter>
        <action android:name="android.intent.action.SEND" />

        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="com.google.android.voicesearch.SELF_NOTE" />

        <data android:mimeType="*/*" />
    </intent-filter>

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When Mac OS X first launched they did so without an existing poll function. They later added poll() in Mac OS X 10.3, but we quickly discovered that it was broken (it returned a non-zero value when asked to wait for nothing) so in the curl project we added a check in configure for that and subsequently avoided using poll() in all OS X versions to and including Mac OS 10.8 (Darwin 12). The code would instead switch to the alternative solution based on select() for these platforms.

With the release of Mac OS X 10.9 “Mavericks” in October 2013, Apple had fixed their poll() implementation and we’ve built libcurl to use it since with no issues at all. The configure script picks the correct underlying function to use.

Enter macOS 10.12 (yeah, its not called OS X anymore) “Sierra”, released in September 2016. Quickly we discovered that poll() once against did not act like it should and we are back to disabling the use of it in preference to the b

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import rx.Observable;
import rx.subjects.PublishSubject;

public class Property<T> {

  private T value;
  private PublishSubject<T> property;

  public Property() {
    property = PublishSubject.create();

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private CompositeSubscription subscriptions = new CompositeSubscription();

public <T> Observable<T> subscribe(Observable<T> observable) {
    subscriptions.add(observable.subscribe());
    return observable;
}

public <T> Observable.Transformer<T, T> subscribeTransformer() {
    return new Observable.Transformer<T, T>() {
        @Override

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<style name="MyTheme" parent="Theme.AppCompat.Light">
    <item name="actionBarStyle">@style/MyActionBarStyle</item>
</style>

<style name="MyActionBarStyle" parent="Widget.AppCompat.ActionBar.Solid">
    <item name="titleTextStyle">@style/MyTitleTextStyle</item>
</style>

<style name="MyTitleTextStyle" parent="TextAppearance.AppCompat.Widget.ActionBar.Title">
    <item name="android:textColor">#000000</item>