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.laxser.blitz.web.portal.impl.WindowTask.java

public WindowTask(WindowImpl window, WindowRequest request, WindowResponse response) {
    if (window == null) {
        throw new NullPointerException("window");
    }/*from   w  ww. jav  a  2s.  c  o m*/
    this.window = window;
    this.request = request;
    this.response = response;
}

From source file:it.scoppelletti.mobilepower.bluetooth.BTManager.java

/**
 * Costruttore.//w ww  .j a v  a2s  . co m
 * 
 * @param ctx Contesto.
 */
public BTManager(Context ctx) {
    if (ctx == null) {
        throw new NullPointerException("Argument ctx is null.");
    }

    myCtx = ctx;
}

From source file:org.sloth.util.ControllerUtils.java

/**
 * Authorizes the {@code HttpSession} with the specified {@code User}.
 * /*from   w  w  w.  jav  a  2  s . c  o  m*/
 * @param s
 *            the {@code HttpSession}
 * @param u
 *            the {@code User}
 */
public static void auth(HttpSession s, User u) {
    if (u == null) {
        throw new NullPointerException("User must not be null.");
    }
    logger.info("Authorizing Session {} by User {}", s.getId(), u.getId());
    s.setAttribute(SESSION_ATTRIBUTE, u);
}

From source file:com.penguineering.cleanuri.sites.reichelt.ReicheltExtractor.java

@Override
public Map<Metakey, String> extractMetadata(URI uri) throws ExtractorException {
    if (uri == null)
        throw new NullPointerException("URI argument must not be null!");

    URL url;/*from w  w  w.j ava2  s  .co m*/
    try {
        url = uri.toURL();
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("The provided URI is not a URL!");
    }

    Map<Metakey, String> meta = new HashMap<Metakey, String>();

    try {
        final URLConnection con = url.openConnection();

        LineNumberReader reader = null;
        try {
            reader = new LineNumberReader(new InputStreamReader(con.getInputStream()));

            String line;
            while ((line = reader.readLine()) != null) {
                if (!line.contains("<h2>"))
                    continue;

                // h2
                int h2_idx = line.indexOf("h2");
                // Doppelpunkte
                int col_idx = line.indexOf("<span> :: <span");
                final String art_id = line.substring(h2_idx + 3, col_idx);
                meta.put(Metakey.ID, html2oUTF8(art_id).trim());

                int span_idx = line.indexOf("</span>");
                final String art_name = line.substring(col_idx + 32, span_idx);
                meta.put(Metakey.NAME, html2oUTF8(art_name).trim());

                break;
            }

            return meta;
        } finally {
            if (reader != null)
                reader.close();
        }
    } catch (IOException e) {
        throw new ExtractorException("I/O exception during extraction: " + e.getMessage(), e, uri);
    }

}

From source file:pl.hycom.jira.plugins.gitlab.integration.search.LucenePathSearcher.java

@PostConstruct
public void init() {
    if (indexPathManager.getIndexRootPath() == null) {
        throw new NullPointerException("Cannot start plugin, index root path is NULL");
    }/*ww  w. j  a  va 2 s  . c o  m*/
    Path path = Paths.get(indexPathManager.getPluginIndexRootPath(), COMMIT_INDEXER_DIRECTORY);
    if (path == null) {
        throw new InvalidPathException(getIndexPathStr(), "Index path doesn't exists");
    }
    luceneIndexPath = path;
    if (!luceneIndexPath.toFile().exists()) {
        luceneIndexPath.toFile().mkdir();
    }
}

From source file:com.gistlabs.mechanize.cache.inMemory.InMemoryCacheEntry.java

public InMemoryCacheEntry(final HttpUriRequest request, final HttpResponse response) {
    if (request == null)
        throw new NullPointerException("request can't be null!");
    this.request = request;
    if (response == null)
        throw new NullPointerException("response can't be null!");
    this.response = response;

}

From source file:edu.cornell.mannlib.vitro.webapp.filestorage.TempFileHolder.java

/**
 * Get the {@link TempFileHolder} which is stored as an attribute on this
 * session, extract the {@link FileInfo} from it, and remove it from the
 * session./*from ww  w  . ja v a  2s.  c o m*/
 * 
 * If there is no such attribute, of if it is not a {@link TempFileHolder},
 * return null.
 */
public static FileInfo remove(HttpSession session, String attributeName) {
    if (session == null) {
        throw new NullPointerException("session may not be null.");
    }
    if (attributeName == null) {
        throw new NullPointerException("attributeName may not be null.");
    }
    Object attribute = session.getAttribute(attributeName);
    if (attribute instanceof TempFileHolder) {
        FileInfo fileInfo = ((TempFileHolder) attribute).extractFileInfo();
        session.removeAttribute(attributeName);
        log.debug("remove this file: " + fileInfo);
        return fileInfo;
    } else if (attribute == null) {
        return null;
    } else {
        session.removeAttribute(attributeName);
        return null;
    }
}

From source file:org.usrz.libs.riak.AbstractJsonClient.java

protected AbstractJsonClient(ObjectMapper mapper) {
    if (mapper == null)
        throw new NullPointerException("Null object mapper");
    this.mapper = mapper;
}

From source file:cz.muni.pa165.carparkapp.serviceImpl.BranchServiceImpl.java

@Override
public boolean deleteBranch(BranchDTO branchdto) {
    if (branchdto == null)
        throw new NullPointerException("Argument cannot be null");

    Branch branch = mapper.map(branchdto, Branch.class);

    boolean result = branchDAO.deleteBranch(branch);

    return result;
}

From source file:eagle.log.entity.meta.EntitySerDeserializer.java

@SuppressWarnings("unchecked")
public <T> T readValue(Map<String, byte[]> qualifierValues, EntityDefinition ed) throws Exception {
    Class<? extends TaggedLogAPIEntity> clazz = ed.getEntityClass();
    if (clazz == null) {
        throw new NullPointerException("Entity class of service " + ed.getService() + " is null");
    }/*from   www.ja  v  a 2s .  c o m*/
    TaggedLogAPIEntity obj = clazz.newInstance();
    Map<String, Qualifier> map = ed.getQualifierNameMap();
    for (Map.Entry<String, byte[]> entry : qualifierValues.entrySet()) {
        Qualifier q = map.get(entry.getKey());
        if (q == null) {
            // if it's not pre-defined qualifier, it must be tag unless it's a bug
            if (obj.getTags() == null) {
                obj.setTags(new HashMap<String, String>());
            }
            obj.getTags().put(entry.getKey(), new StringSerDeser().deserialize(entry.getValue()));
            continue;
        }

        // TODO performance loss compared with new operator
        // parse different types of qualifiers
        String fieldName = q.getDisplayName();
        PropertyDescriptor pd = PropertyUtils.getPropertyDescriptor(obj, fieldName);
        if (entry.getValue() != null) {
            Object args = q.getSerDeser().deserialize(entry.getValue());
            pd.getWriteMethod().invoke(obj, args);
            //            if (logger.isDebugEnabled()) {
            //               logger.debug(entry.getKey() + ":" + args + " is deserialized");
            //            }
        }
    }
    return (T) obj;
}