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(String s)

Source Link

Document

Constructs a NullPointerException with the specified detail message.

Usage

From source file:com.supermy.base.service.WebMetaService.java

@Autowired
public WebMetaService(EntityManagerFactory factory) {
    if (factory.unwrap(SessionFactory.class) == null) {
        throw new NullPointerException("factory is not a hibernate factory");
    }/*www.  j  a v a2 s  .  co m*/
    this.sessionfactory = factory.unwrap(SessionFactory.class);
}

From source file:Main.java

/**
 * Creates a string with {@code toString()} of each object with the given separator.
 *
 * <pre>//w  w w  .  ja v a  2s . co  m
 * expect:
 * join(",", ["a"]) == "a"
 * join(",", ["a", "b", "c"]) == "a,b,c"
 * join(",", []) == ""
 * </pre>
 *
 * The {@code separator} must not be null and {@code objects} must not be null.
 *
 * @param separator The string by which to join each string representation
 * @param objects The objects to join the string representations of
 * @return The joined string
 */
public static String join(String separator, Iterable<?> objects) {
    if (separator == null) {
        throw new NullPointerException("The 'separator' cannot be null");
    }
    if (objects == null) {
        throw new NullPointerException("The 'objects' cannot be null");
    }

    StringBuilder string = new StringBuilder();
    Iterator<?> iterator = objects.iterator();
    if (iterator.hasNext()) {
        string.append(iterator.next().toString());
        while (iterator.hasNext()) {
            string.append(separator);
            string.append(iterator.next().toString());
        }
    }
    return string.toString();
}

From source file:com.amazonaws.services.dynamodbv2.xspec.Path.java

private List<PathElement> parse(String path) {
    if (path == null) {
        throw new NullPointerException("path");
    }/*w w w .j  a  v  a 2s  .com*/

    final String[] split = path.split(Pattern.quote("."));
    final List<PathElement> elements = new ArrayList<PathElement>();

    for (String element : split) {
        int index = element.indexOf('[');
        if (index == -1) {
            elements.add(new NamedElement(element));
            continue;
        }

        if (index == 0) {
            throw new IllegalArgumentException("Bogus path: " + path);
        }

        elements.add(new NamedElement(element.substring(0, index)));

        do {
            element = element.substring(index + 1);
            index = element.indexOf(']');

            if (index == -1) {
                throw new IllegalArgumentException("Bogus path: " + path);
            }

            int arrayIndex = Integer.parseInt(element.substring(0, index));
            elements.add(new ArrayIndexElement(arrayIndex));

            element = element.substring(index + 1);
            index = element.indexOf('[');

            if (index > 0)
                throw new IllegalArgumentException("Bogus path: " + path);
        } while (index != -1);

        if (!element.isEmpty()) {
            throw new IllegalArgumentException("Bogus path: " + path);
        }
    }

    return elements;
}

From source file:com.ibm.soatf.component.soap.builder.ResourceUtils.java

private static Path parsePath(String resourcePath) {
    if (resourcePath == null) {
        throw new NullPointerException("resourcePath cannot be null");
    }/*from  w w  w.j a v a2 s .  co m*/
    Path path = new Path();
    path.packagePath = getFullPath(resourcePath);
    path.resourcePath = FilenameUtils.getName(resourcePath);
    return path;
}

From source file:br.com.caelum.vraptor.ioc.spring.WebinfClassesPatternResolver.java

public WebinfClassesPatternResolver(String webinfClassesDirectory) {
    if (webinfClassesDirectory == null) {
        throw new NullPointerException("web inf class directory cant be null");
    }/*from w  w w.  j  a v  a2 s  .  com*/
    this.webinfClassesDirectory = webinfClassesDirectory;

}

From source file:com.google.nigori.common.Revision.java

public Revision(byte[] revision) {
    if (revision == null) {
        throw new NullPointerException("Null revisons not allowed");
    }//ww  w .  j  ava2  s.c o  m
    this.revision = revision;
}

From source file:edu.harvard.iq.dataverse.mydata.SolrQueryFormatter.java

/**
 *
 * @param sliceOfIds//  ww  w.ja  v a  2s  .c  om
 * @param paramName
 * @return
 */
private String formatIdsForSolrClause(List<Long> sliceOfIds, String paramName, String dvObjectType) { //='entityId'):
    if (paramName == null) {
        throw new NullPointerException("paramName cannot be null");
    }
    if (sliceOfIds == null) {
        throw new NullPointerException("sliceOfIds cannot be null");
    }
    if (sliceOfIds.isEmpty()) {
        throw new IllegalStateException("sliceOfIds must have at least 1 value");
    }

    List<String> idList = new ArrayList<>();
    for (Long id : sliceOfIds) {
        if (id != null) {
            idList.add("" + id);
        }
    }
    String orClause = StringUtils.join(idList, " ");
    String qPart = "(" + paramName + ":(" + orClause + "))";
    if (dvObjectType != null) {
        qPart = "(" + paramName + ":(" + orClause + ") AND " + SearchFields.TYPE + ":(" + dvObjectType + "))";
        //valStr;
    }

    return qPart;
}

From source file:com.github.rvesse.airline.builder.AbstractBuilder.java

/**
 * Checks a value given for a parameter is not null
 * /* w w  w.j a  v a 2 s . com*/
 * @param value
 *            Value
 * @param paramName
 *            Parameter
 */
protected final void checkNotNull(String value, String paramName) {
    if (value == null)
        throw new NullPointerException(String.format("%s cannot be null", paramName));
}

From source file:edu.cornell.mannlib.vitro.webapp.config.ConfigurationProperties.java

public static ConfigurationProperties getBean(HttpSession session) {
    if (session == null) {
        throw new NullPointerException("session may not be null.");
    }/*from ww w  .j ava  2s  .  c o m*/
    return getBean(session.getServletContext());
}

From source file:net.dv8tion.jda.utils.InviteUtil.java

/**
 * Takes an invite url or invite code and changes it into an {@link net.dv8tion.jda.utils.InviteUtil.Invite Invite}.
 * If the url or code isn't a proper invite, this returns <code>null</code>
 *
 * @param code// w  w w . java2 s.  c  o  m
 *          The invite url or code
 * @return
 *      An {@link net.dv8tion.jda.utils.InviteUtil.Invite Invite} representing the invite specified by the provided
 *      code or url. This will return <code>null</code> if the provided code or url is invalid.
 * @throws java.lang.NullPointerException
 *      If the provided String is null.
 */
public static Invite resolve(String code) {
    if (code == null)
        throw new NullPointerException("The provided invite code/url was null.");
    if (code.startsWith("http")) {
        String[] split = code.split("/");
        code = split[split.length - 1];
    }
    JSONObject object = new JDAImpl(false, false, false).getRequester()
            .get(Requester.DISCORD_API_PREFIX + "invite/" + code).getObject();
    if (object != null && object.has("code") && object.has("guild")) {
        JSONObject guild = object.getJSONObject("guild");
        JSONObject channel = object.getJSONObject("channel");
        return new Invite(object.getString("code"), guild.getString("name"), guild.getString("id"),
                channel.getString("name"), channel.getString("id"), channel.getString("type").equals("text"));
    }
    return null;
}