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.activecq.api.utils.ValidationUtil.java

/**
 * Checks if the value @ key is a path that exists in the JCR
 *
 * @param form//from  w  w  w .  j  av a 2  s  . c o m
 * @param key
 * @param resourceResolver
 * @return
 * @throws NullPointerException
 */
public static boolean isValidPath(ActiveForm form, String key, ResourceResolver resourceResolver)
        throws NullPointerException {
    if (!isPresent(form, key)) {
        return false;
    }

    if (resourceResolver == null) {
        throw new NullPointerException("ResourceResolver cannot be null.");
    }

    String val = form.get(key);
    Resource r = resourceResolver.resolve(val);
    return r != null && !(ResourceUtil.isA(r, NonExistingResource.RESOURCE_TYPE_NON_EXISTING));
}

From source file:com.pamarin.income.service.impl.IncomeItemServiceImpl.java

@Override
public void delete(IncomeItem item) {
    if (item == null) {
        throw new NullPointerException("item is null.");
    }//w  ww .  j a v  a 2s  . c om

    repo.delete(item.getId());
}

From source file:com.multimedia.service.commonImage.CmsCommonImageServiceImpl.java

@Override
public void init() {
    super.init();
    StringBuilder sb = new StringBuilder();
    common.utils.MiscUtils.checkNotNull(commonItemService, "commonItemService", sb);
    if (sb.length() > 0) {
        throw new NullPointerException(sb.toString());
    }//w  ww. jav a2s  . c o  m
}

From source file:com.elasticgrid.examples.video.MencoderEncoder.java

public MencoderEncoder(boolean enableLog) {
    this.enableLog = enableLog;
    String rioHome = System.getProperty("org.rioproject.home");
    if (rioHome == null) {
        throw new NullPointerException("Rio home property should be set!");
    }//from   ww w .  jav a 2s. c  o m
    String osName = System.getProperty("os.name");
    try {
        if (osName.contains("Windows")) {
            encoderLocation = "mencoder.exe";
        } else if (osName.contains("Linux")) {
            encoderLocation = "mencoder";
        } else if (osName.contains("Mac")) {
            encoderLocation = "mencoder";
        } else {
            throw new RuntimeException("Unsupported OS: " + osName);
        }
        logger.log(Level.INFO, "Using encoder located in {0}", encoderLocation);
    } catch (Exception e) {
        throw new RuntimeException("Can't find appropriate mencoder software", e);
    }
}

From source file:net.ontopia.persistence.query.jdo.JDOField.java

public JDOField(JDOValueIF root, String name, boolean evaluatable) {
    this(root, new String[] { name }, evaluatable);
    if (name == null)
        throw new NullPointerException("Field name cannot be null.");
}

From source file:net.dv8tion.jda.player.Playlist.java

public static Playlist getPlaylist(String url) {
    List<String> infoArgs = new LinkedList<>();
    infoArgs.addAll(YOUTUBE_DL_PLAYLIST_ARGS);
    infoArgs.add("--"); //Url separator. Deals with YT ids that start with --
    infoArgs.add(url);//from w w w .j  av a 2s  . c om

    //Fire up Youtube-dl and get all sources from the provided url.
    List<AudioSource> sources = new ArrayList<>();
    Scanner scan = null;
    try {
        Process infoProcess = new ProcessBuilder().command(infoArgs).start();
        byte[] infoData = IOUtils.readFully(infoProcess.getInputStream(), -1, false);
        if (infoData == null || infoData.length == 0)
            throw new NullPointerException(
                    "The YT-DL playlist process resulted in a null or zero-length INFO!");

        String sInfo = new String(infoData);
        scan = new Scanner(sInfo);

        JSONObject source = new JSONObject(scan.nextLine());
        if (source.has("_type"))//Is a playlist
        {
            sources.add(new RemoteSource(source.getString("url")));
            while (scan.hasNextLine()) {
                source = new JSONObject(scan.nextLine());
                sources.add(new RemoteSource(source.getString("url")));
            }
        } else //Single source link
        {
            sources.add(new RemoteSource(source.getString("webpage_url")));
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (scan != null)
            scan.close();
    }

    //Now that we have all the sources we can create our Playlist object.
    Playlist playlist = new Playlist("New Playlist");
    playlist.sources = sources;
    return playlist;
}

From source file:com.pamarin.income.service.impl.ExpensesItemServiceImpl.java

@Override
public void delete(ExpensesItem item) {
    if (item == null) {
        throw new NullPointerException("item is null.");
    }/*www.ja  v  a  2s  .  co  m*/

    repo.delete(item.getId());
}

From source file:ml.dmlc.xgboost4j.java.Booster.java

/**
 * Load a new Booster model from modelPath
 * @param modelPath The path to the model.
 * @return The created Booster.//from   ww  w.  j ava  2s  . com
 * @throws XGBoostError
 */
static Booster loadModel(String modelPath) throws XGBoostError {
    if (modelPath == null) {
        throw new NullPointerException("modelPath : null");
    }
    Booster ret = new Booster(new HashMap<String, Object>(), new DMatrix[0]);
    XGBoostJNI.checkCall(XGBoostJNI.XGBoosterLoadModel(ret.handle, modelPath));
    return ret;
}

From source file:edu.cornell.mannlib.vitro.webapp.dao.filtering.filters.FilterByRoleLevelPermission.java

private static Permission getPermissionFromRequest(HttpServletRequest req) {
    if (req == null) {
        throw new NullPointerException("request may not be null.");
    }//from w  ww .  j a  va  2 s.  c o m

    IdentifierBundle ids = RequestIdentifiers.getIdBundleForRequest(req);
    for (Permission p : HasPermission.getPermissions(ids)) {
        if (p instanceof DisplayByRolePermission) {
            return p;
        }
    }
    return getDefaultPermission(req.getSession().getServletContext());
}

From source file:de.phoenix.rs.key.UpdateEntity.java

/**
 * Construct an empty UpdateEntity with the new Object as payload.
 * //from   ww  w. j  ava2s . c  o m
 * @param newObject
 *            The object containing the values which replaces the old ones
 */
public UpdateEntity(T newObject) {
    if (newObject == null) {
        throw new NullPointerException("The new object cannot be null!");
    }
    this.newObject = newObject;
}