Example usage for java.lang NullPointerException NullPointerException

Introduction

In this page you can find the example usage for java.lang NullPointerException NullPointerException.

Prototype

public NullPointerException()

Source Link

Document

Constructs a NullPointerException with no detail message.

Usage

From source file:Main.java

public static <E> Iterable<E> iterable(final Iterator<E> iterator) {
    if (iterator == null) {
        throw new NullPointerException();
    }/*ww  w. j  av  a2  s  .  c  om*/
    return new Iterable<E>() {
        public Iterator<E> iterator() {
            return iterator;
        }
    };
}

From source file:Main.java

/**
 * Ensures that an object reference passed as a parameter to the calling
 * method is not null./*from  w w w .  j a v a2  s .c om*/
 *
 * @param reference an object reference
 * @return the non-null reference that was validated
 * @throws NullPointerException if {@code reference} is null
 */
public static <T> T checkNotNull(T reference) {
    if (reference == null) {
        throw new NullPointerException();
    }
    return reference;
}

From source file:com.dominion.salud.pedicom.negocio.configuration.DataSourceContextHolder.java

public static void setTargetDataSource(String targetDataSource) {
    if (StringUtils.isBlank(targetDataSource)) {
        throw new NullPointerException();
    }//  w ww.  j a  v  a 2  s.  co m
    contextHolder.put("Bdactual", targetDataSource);
}

From source file:jenkins.uvision.CoverageParser.java

public static TestRun parse(File inFile) throws IOException {
    FileInputStream fileInputStream = null;
    BufferedInputStream bufferedInputStream = null;
    try {//from   w ww  . j a  v a 2  s . co m
        fileInputStream = new FileInputStream(inFile);
        bufferedInputStream = new BufferedInputStream(fileInputStream);
        CoverageParser parser = new CoverageParser();
        TestRun result = parse(bufferedInputStream);
        if (result == null)
            throw new NullPointerException();
        return result;
    } finally {
        try {
            if (bufferedInputStream != null)
                bufferedInputStream.close();
            if (fileInputStream != null)
                fileInputStream.close();
        } catch (IOException e) {
        }
    }
}

From source file:Main.java

private static <T> void checkParam(T param) {
    if (param == null)
        throw new NullPointerException();
}

From source file:Main.java

/**
 * Copy each map entry to a new map but check that each key and value isn't null. Throw
 * a {@code NullPointerException} if it's the case.
 *
 * @param entries entries to copy//from   w w w  .j ava2 s.  c o  m
 * @param <K> type of key
 * @param <V> type of value
 * @return cloned map
 * @throws NullPointerException if a key or value is null
 */
public static <K, V> Map<K, V> copyMapButFailOnNull(Map<? extends K, ? extends V> entries) {
    Map<K, V> entriesToRemap = new HashMap<>(entries.size());
    entries.forEach((k, v) -> {
        // If a key/value is null, throw NPE, nothing gets mutated
        if (k == null || v == null) {
            throw new NullPointerException();
        }
        entriesToRemap.put(k, v);
    });
    return entriesToRemap;
}

From source file:Main.java

public String getSymbol(String currencyCode, Locale locale) {
    if (currencyCode == null || locale == null)
        throw new NullPointerException();

    if (currencyCode.length() != 3)
        throw new IllegalArgumentException("currency code length not 3");

    for (int i = 0; i < 3; i++)
        if (!Character.isUpperCase(currencyCode.charAt(i)))
            throw new IllegalArgumentException("bad currency code");

    if (!locale.equals(locales[0]))
        throw new IllegalArgumentException("unsupported locale");

    if (currencyCode.equals("ERN"))
        return "Nfk";
    else/*  w w  w. jav  a 2s  .c o m*/
        return null;
}

From source file:Main.java

/**
 * Set the drawable to a specific color and return it
 * @param drawableId the int ID of the drawable to change
 * @param colorToSet The color to set it to
 * @return Drawable/*from  www .j  a  v a 2  s  .  c o  m*/
 * @throws NullPointerException, if it fails, throws a null pointer
 */
public static Drawable colorDrawable(int drawableId, int colorToSet, Context context) {
    try {
        Drawable drawable = ContextCompat.getDrawable(context, drawableId);
        drawable.mutate().setColorFilter(colorToSet, PorterDuff.Mode.MULTIPLY);
        return drawable;
    } catch (Exception e) {
        e.printStackTrace();
        throw new NullPointerException();
    }
}

From source file:cc.redberry.core.number.NumberUtils.java

/**
 * Checks that an object is not null.//from  w  w  w . j a v  a 2s. com
 *
 * @param o Object to be checked.
 * @throws NullPointerException if {@code o} is {@code null}.
 */
static void checkNotNull(Object o) throws NullPointerException {
    if (o == null)
        throw new NullPointerException();
}

From source file:jenkins.uvision.CoverageParser.java

public static TestRun parse(InputStream in) throws IOException {
    if (in == null)
        throw new NullPointerException();
    Digester digester = new Digester();
    digester.setClassLoader(CoverageParser.class.getClassLoader());

    digester.addObjectCreate("TestRun", TestRun.class);
    digester.addObjectCreate("TestRun/SuccessfulTests", SuccessfulTests.class);

    digester.addObjectCreate("TestRun/SuccessfulTests/Test", Test.class);
    digester.addBeanPropertySetter("TestRun/SuccessfulTests/Test/File", "file");
    digester.addBeanPropertySetter("TestRun/SuccessfulTests/Test/Name", "name");
    digester.addBeanPropertySetter("TestRun/SuccessfulTests/Test/Coverage", "coverage");
    digester.addBeanPropertySetter("TestRun/SuccessfulTests/Test/Instructions", "instructions");
    digester.addSetProperties("TestRun/SuccessfulTests/Test", "id", "id");
    digester.addSetProperties("TestRun/SuccessfulTests/Test", "duration", "duration");

    digester.addSetNext("TestRun/SuccessfulTests/Test", "addTest");
    digester.addSetNext("TestRun/SuccessfulTests", "addSuccessfullTests");

    digester.addObjectCreate("TestRun/Statistics", Statistics.class);
    digester.addBeanPropertySetter("TestRun/Statistics/Tests", "tests");
    digester.addBeanPropertySetter("TestRun/Statistics/FailuresTotal", "failuresTotal");
    digester.addBeanPropertySetter("TestRun/Statistics/Errors", "errors");
    digester.addBeanPropertySetter("TestRun/Statistics/Ignored", "ignored");
    digester.addBeanPropertySetter("TestRun/Statistics/Failures", "failures");
    digester.addBeanPropertySetter("TestRun/Statistics/Duration", "duration");

    digester.addSetNext("TestRun/Statistics", "addStatistics");
    digester.addSetNext("TestRun/Statistics", "setStatistics");

    try {/* w ww. j a  va2  s .  c o  m*/
        return (TestRun) digester.parse(in);
    } catch (SAXException e) {
        throw new IOException2("Cannot parse coverage results", e);
    }
}