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How to use emptyOptional method of org.mockito.internal.util.JavaEightUtil class

Best Mockito code snippet using org.mockito.internal.util.JavaEightUtil.emptyOptional

Source:ReturnsEmptyValues.java

...91        if (cls == LinkedHashMap.class) {92            return new LinkedHashMap();93        }94        if ("java.util.Optional".equals(cls.getName())) {95            return JavaEightUtil.emptyOptional();96        }97        if ("java.util.OptionalDouble".equals(cls.getName())) {98            return JavaEightUtil.emptyOptionalDouble();99        }100        if ("java.util.OptionalInt".equals(cls.getName())) {101            return JavaEightUtil.emptyOptionalInt();102        }103        if ("java.util.OptionalLong".equals(cls.getName())) {104            return JavaEightUtil.emptyOptionalLong();105        }106        if ("java.util.stream.Stream".equals(cls.getName())) {107            return JavaEightUtil.emptyStream();108        }109        if ("java.util.stream.DoubleStream".equals(cls.getName())) {110            return JavaEightUtil.emptyDoubleStream();111        }112        if ("java.util.stream.IntStream".equals(cls.getName())) {113            return JavaEightUtil.emptyIntStream();114        }115        if ("java.util.stream.LongStream".equals(cls.getName())) {116            return JavaEightUtil.emptyLongStream();117        }118        return null;...

Source:JavaEightUtil.java

...6 * This class uses reflection in most places to avoid coupling with a newer JDK.7 */8public final class JavaEightUtil {9    // No need for volatile, Optional#empty() is already a safe singleton.10    private static Object emptyOptional;11    private JavaEightUtil() {12        // utility class13    }14    /**15     * Creates an empty Optional using reflection to stay backwards-compatible with older16     * JDKs (see issue 191).17     *18     * @return an empty Optional.19     */20    public static Object emptyOptional() {21        // no need for double-checked locking22        if (emptyOptional != null) {23            return emptyOptional;24        }25        try {26            final Class<?> optionalClass = Class.forName("java.util.Optional");27            final Method emptyMethod = optionalClass.getMethod("empty");28            return emptyOptional = emptyMethod.invoke(null);29            // any exception is really unexpected since the type name has30            // already been verified to be java.util.Optional31        } catch (Exception e) {32            throw new InstantiationException("Could not create java.util.Optional#empty(): " + e, e);33        }34    }35    /**36     * Creates an empty Stream using reflection to stay backwards-compatible with older37     * JDKs.38     *39     * @return an empty Stream.40     */41    public static Object emptyStream() {42        // note: the empty stream can not be stored as a singleton....

emptyOptional

Using AI Code Generation

1import org.mockito.internal.util.JavaEightUtil;2public class 1 {3    public static void main(String[] args) {4        JavaEightUtil.emptyOptional();5    }6}7Exception in thread "main" java.lang.NoSuchMethodError: java.util.Optional.empty()Ljava/util/Optional;8    at org.mockito.internal.util.JavaEightUtil.emptyOptional(JavaEightUtil.java:12)9    at 1.main(1.java:6)

emptyOptional

Using AI Code Generation

1import org.mockito.internal.util.JavaEightUtil;2import java.util.Optional;3class Test{4    public static void main(String[] args) {5        Optional<String> optional = JavaEightUtil.emptyOptional();6        System.out.println(optional);7    }8}9Java Util Optional get() method10Java Util Optional isPresent() method11Java Util Optional orElse() method12Java Util Optional orElseGet() method13Java Util Optional ofNullable() method14Java Util Optional orElseThrow() method15Java Util Optional filter() method16Java Util Optional map() method17Java Util Optional flatMap() method18Java Util Optional ifPresent() method19Java Util Optional ifPresentOrElse() method20Java Util Optional stream() method21Java Util Optional of() method22Java Util Optional empty() method23Java Util Optional ofNullable() method24Java Util Optional get() method25Java Util Optional isPresent() method26Java Util Optional orElse() method27Java Util Optional orElseGet() method28Java Util Optional orElseThrow() method29Java Util Optional filter() method30Java Util Optional map() method31Java Util Optional flatMap() method32Java Util Optional ifPresent() method33Java Util Optional ifPresentOrElse() method34Java Util Optional stream() method35Java Util Optional of() method36Java Util Optional empty() method37Java Util Optional ofNullable() method38Java Util Optional get() method39Java Util Optional isPresent() method40Java Util Optional orElse() method41Java Util Optional orElseGet() method42Java Util Optional orElseThrow() method43Java Util Optional filter() method44Java Util Optional map() method45Java Util Optional flatMap() method46Java Util Optional ifPresent() method47Java Util Optional ifPresentOrElse() method48Java Util Optional stream() method49Java Util Optional of() method50Java Util Optional empty() method51Java Util Optional ofNullable() method52Java Util Optional get() method53Java Util Optional isPresent() method54Java Util Optional orElse() method55Java Util Optional orElseGet() method56Java Util Optional orElseThrow() method57Java Util Optional filter() method58Java Util Optional map() method59Java Util Optional flatMap() method

emptyOptional

Using AI Code Generation

1import org.mockito.internal.util.JavaEightUtil;2import java.util.Optional;3public class MockitoJavaEightUtilDemo {4   public static void main(String args[]) {5      Optional<String> emptyOptional = JavaEightUtil.emptyOptional();6      System.out.println(emptyOptional);7   }8}

emptyOptional

Using AI Code Generation

1import org.mockito.internal.util.JavaEightUtil;2import java.util.Optional;3public class JavaEightUtilExample {4   public static void main(String args[]) {5      Optional emptyOptional = JavaEightUtil.emptyOptional();6      System.out.println(emptyOptional);7   }8}

emptyOptional

Using AI Code Generation

1   public static void main(String[] args)2   {3      JavaEightUtil.emptyOptional();4   }5}6Exception in thread "main" java.lang.NoSuchMethodError: org.mockito.internal.util.JavaEightUtil.emptyOptional()Ljava/ut

emptyOptional

Using AI Code Generation

1public class Test {2    public static void main(String[] args) {3        Optional<String> optional = JavaEightUtil.emptyOptional();4        System.out.println(optional.isPresent());5    }6}7Related posts: How to use emptyOptional() method of JavaEightUtil class in Mockito? How to use emptyOptional(

emptyOptional

Using AI Code Generation

1import java.util.Optional;2public class 2 {3    public static void main(String[] args) {4        Optional<String> opt = Optional.ofNullable(null);5        System.out.println(opt);6    }7}8import java.util.Optional;9public class 3 {10    public static void main(String[] args) {11        Optional<String> opt = Optional.of(null);12        System.out.println(opt);13    }14}15	at java.util.Objects.requireNonNull(Objects.java:203)16	at java.util.Optional.of(Optional.java:96)17	at 3.main(3.java:6)

emptyOptional

Using AI Code Generation

1Optional<String> emptyOptional = JavaEightUtil.emptyOptional();2System.out.println(emptyOptional.isPresent());3boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();4System.out.println(isJavaEightAvailable);5boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();6System.out.println(isJavaEightAvailable);7boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();8System.out.println(isJavaEightAvailable);9boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();10System.out.println(isJavaEightAvailable);11boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();12System.out.println(isJavaEightAvailable);13boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();14System.out.println(isJavaEightAvailable);15boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();16System.out.println(isJavaEightAvailable);17boolean isJavaEightAvailable = JavaEightUtil.isJavaEightClassAvailable();18System.out.println(isJavaEightAvailable);

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