Example usage for java.lang NullPointerException printStackTrace

List of usage examples for java.lang NullPointerException printStackTrace

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Introduction

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

Prototype

public void printStackTrace()

Source Link

Document

Prints this throwable and its backtrace to the standard error stream.

Usage

From source file:com.likya.myra.jef.controller.BaseSchedulerController.java

@SuppressWarnings("unchecked")
public int getNumOfActiveJobs() {

    StateName.Enum filterStates[] = { StateName.RUNNING };

    HashMap<String, AbstractJobType> abstractJobTypeList = JobQueueOperations.toAbstractJobTypeList(jobQueue);

    Collection<AbstractJobType> filteredList;

    int listSize = 0;

    try {//from   ww w  .j  a v  a 2  s. c o  m
        filteredList = CollectionUtils.select(abstractJobTypeList.values(),
                new StateFilter(filterStates).anyPredicate());
        listSize = filteredList.size();
    } catch (NullPointerException n) {
        n.printStackTrace();
    }
    // System.err.println("filteredList.size() : " + filteredList.size());

    return listSize;
}

From source file:org.processmining.analysis.performance.PerformanceLogReplayResult.java

/**
 * Calculates the average, min ad max throughput time out of the throughput
 * times of all traces in piList. Next to this, the arrival rate is
 * calculated. All metrics are based on the process instances in piList only
 * //from   w w  w . jav a  2s  .  c om
 * @param piList
 *            ArrayList: the process instances used
 * @param fitOption
 *            int: the fit option used (how to deal with non-conformance)
 * @throws Exception
 */
public void calculateMetrics(ArrayList piList, int fitOption) throws Exception {
    properFrequency = 0;
    timeStats.clear();
    arrivalStats.clear();
    ArrayList arrivalDates = new ArrayList();
    ListIterator lit = piList.listIterator();
    while (lit.hasNext()) {
        ExtendedLogTrace currentTrace = (ExtendedLogTrace) lit.next();
        if (currentTrace.hasProperlyTerminated() && currentTrace.hasSuccessfullyExecuted()) {
            properFrequency++;
        }
        try {
            long tp = (currentTrace.getEndDate().getTime() - currentTrace.getBeginDate().getTime());
            if (fitOption == 0) {
                // timeStats based on all traces
                timeStats.addValue(tp);
                arrivalDates.add(currentTrace.getBeginDate());
            }
            if (currentTrace.hasProperlyTerminated() && currentTrace.hasSuccessfullyExecuted()) {
                if (fitOption == 1) {
                    // timeStats based on fitting traces only
                    timeStats.addValue(tp);
                    arrivalDates.add(currentTrace.getBeginDate());
                }
            }
        } catch (NullPointerException ex) {
            ex.printStackTrace();
        }
    }
    Date[] arrivals = (Date[]) arrivalDates.toArray(new Date[0]);
    // make sure arrivaldates are sorted
    Arrays.sort(arrivals);
    if (arrivals.length > 1) {
        for (int i = 1; i < arrivals.length; i++) {
            long t1 = arrivals[i].getTime();
            long t2 = arrivals[i - 1].getTime();
            long iat = arrivals[i].getTime() - arrivals[i - 1].getTime();
            if (iat >= 0) {
                arrivalStats.addValue(iat);
            }
        }
    }
}

From source file:org.digitalcampus.oppia.model.Course.java

public void setLangsFromJSONString(String jsonStr) {
    try {/*from w  w  w . ja va  2s .c  om*/
        JSONArray langsArray = new JSONArray(jsonStr);
        for (int i = 0; i < langsArray.length(); i++) {
            JSONObject titleObj = langsArray.getJSONObject(i);
            @SuppressWarnings("unchecked")
            Iterator<String> iter = (Iterator<String>) titleObj.keys();
            while (iter.hasNext()) {
                Lang l = new Lang(iter.next().toString(), "");
                this.langs.add(l);
            }
        }
    } catch (JSONException e) {
        e.printStackTrace();
    } catch (NullPointerException npe) {
        npe.printStackTrace();
    }
}

From source file:com.savor.ads.core.Session.java

/**
 * boxId?Mac?/*w ww  . ja v  a2s.co m*/
 */
public static String getWiredMacAddr() {
    String cmd = "busybox ifconfig eth0";
    Process process = null;
    InputStream is = null;
    try {
        process = Runtime.getRuntime().exec(cmd);
        is = process.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        String line = reader.readLine();
        return line.substring(line.indexOf("HWaddr") + 6).trim().replaceAll(":", "");
    } catch (NullPointerException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (is != null) {
                is.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return "";
}

From source file:com.dtolabs.rundeck.core.resources.TestURLResourceModelSource.java

public void testConfigureProperties() throws Exception {
    final URLResourceModelSource provider = new URLResourceModelSource(getFrameworkInstance());
    try {/*from  w  w  w .  j a v a2 s .  c  om*/
        provider.configure(null);
        fail("Should throw NPE");
    } catch (NullPointerException e) {
        e.printStackTrace();
    }

    Properties props = new Properties();
    try {
        provider.configure(props);
        fail("shouldn't succeed");
    } catch (ConfigurationException e) {
        assertEquals("project is required", e.getMessage());
    }

    props.setProperty("project", PROJ_NAME);
    try {
        provider.configure(props);
        fail("shouldn't succeed");
    } catch (ConfigurationException e) {
        assertEquals("url is required", e.getMessage());
    }
    props.setProperty("url", "blah");
    try {
        provider.configure(props);
        fail("shouldn't succeed");
    } catch (ConfigurationException e) {
        assertTrue(e.getMessage().startsWith("url is malformed"));
    }

    props.setProperty("url", "ftp://example.com/blah");
    try {
        provider.configure(props);
        fail("shouldn't succeed");
    } catch (ConfigurationException e) {
        assertTrue(e.getMessage().startsWith("url protocol not allowed: "));
    }

    props.setProperty("url", "http://example.com/test");
    provider.configure(props);
    assertNotNull(provider.configuration.nodesUrl);
    assertEquals("http://example.com/test", provider.configuration.nodesUrl.toExternalForm());

    assertEquals(PROJ_NAME, provider.configuration.project);

    props.setProperty("url", "https://example.com/test");
    provider.configure(props);
    assertNotNull(provider.configuration.nodesUrl);
    assertEquals("https://example.com/test", provider.configuration.nodesUrl.toExternalForm());

    props.setProperty("url", "file://some/file");
    provider.configure(props);
    assertNotNull(provider.configuration.nodesUrl);
    assertEquals("file://some/file", provider.configuration.nodesUrl.toExternalForm());

    props.setProperty("timeout", "notanumber");
    try {
        provider.configure(props);
        fail("shouldn't succeed");
    } catch (ConfigurationException e) {
        assertTrue(e.getMessage().startsWith("timeout is invalid: "));
    }

    props.setProperty("timeout", "12345");
    provider.configure(props);
    assertEquals(12345, provider.configuration.timeout);

    assertEquals(true, provider.configuration.useCache);
    props.setProperty("cache", "false");
    provider.configure(props);
    assertEquals(false, provider.configuration.useCache);
}

From source file:io.github.jeremgamer.editor.panels.Labels.java

public Labels(final JFrame frame, final LabelPanel lp, final PanelSave ps) {
    this.frame = frame;

    this.setBorder(BorderFactory.createTitledBorder(""));
    JButton add = null;// w ww . j  a  v a  2 s .com
    try {
        add = new JButton(new ImageIcon(ImageIO.read(ImageGetter.class.getResource("add.png"))));
    } catch (IOException e) {
        e.printStackTrace();
    }
    add.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            try {
                JOptionPane jop = new JOptionPane();
                @SuppressWarnings("static-access")
                String name = jop.showInputDialog((JFrame) SwingUtilities.windowForComponent(labelList),
                        "Nommez le label :", "Crer un label", JOptionPane.QUESTION_MESSAGE);

                if (name != null) {
                    for (int i = 0; i < data.getSize(); i++) {
                        if (data.get(i).equals(name)) {
                            name += "1";
                        }
                    }
                    data.addElement(name);
                    new LabelSave(name);
                    ActionPanel.updateLists();
                    OtherPanel.updateLists();
                    PanelsPanel.updateLists();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }

        }

    });

    JButton remove = null;
    try {
        remove = new JButton(new ImageIcon(ImageIO.read(ImageGetter.class.getResource("remove.png"))));
    } catch (IOException e) {
        e.printStackTrace();
    }
    remove.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            try {
                if (labelList.getSelectedValue() != null) {
                    File file = new File("projects/" + Editor.getProjectName() + "/labels/"
                            + labelList.getSelectedValue() + ".rbd");
                    JOptionPane jop = new JOptionPane();
                    @SuppressWarnings("static-access")
                    int option = jop.showConfirmDialog((JFrame) SwingUtilities.windowForComponent(labelList),
                            "tes-vous sr de vouloir supprimer ce label?", "Avertissement",
                            JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);

                    if (option == JOptionPane.OK_OPTION) {
                        File dir = new File("projects/" + Editor.getProjectName() + "/panels");
                        for (File f : FileUtils.listFilesAndDirs(dir, TrueFileFilter.INSTANCE,
                                TrueFileFilter.INSTANCE)) {
                            if (!f.isDirectory()) {
                                try {
                                    ps.load(f);
                                } catch (IOException e) {
                                    e.printStackTrace();
                                }
                                for (String section : ps
                                        .getSectionsContaining(labelList.getSelectedValue() + " (Label)")) {
                                    ps.removeSection(section);
                                    try {
                                        ps.save(f);
                                    } catch (IOException e) {
                                        e.printStackTrace();
                                    }
                                }
                            }
                        }
                        if (labelList.getSelectedValue().equals(lp.getFileName())) {
                            lp.setFileName("");
                        }
                        lp.hide();
                        file.delete();
                        data.remove(labelList.getSelectedIndex());
                        ActionPanel.updateLists();
                        OtherPanel.updateLists();
                        PanelsPanel.updateLists();
                    }
                }
            } catch (NullPointerException npe) {
                npe.printStackTrace();
            }

        }

    });

    JPanel buttons = new JPanel();
    buttons.setLayout(new BoxLayout(buttons, BoxLayout.LINE_AXIS));
    buttons.add(add);
    buttons.add(remove);

    updateList();
    labelList.addMouseListener(new MouseAdapter() {
        @SuppressWarnings("unchecked")
        public void mouseClicked(MouseEvent evt) {
            JList<String> list = (JList<String>) evt.getSource();
            if (evt.getClickCount() == 2) {
                int index = list.locationToIndex(evt.getPoint());
                if (isOpen == false) {
                    lp.show();
                    lp.load(new File("projects/" + Editor.getProjectName() + "/labels/"
                            + list.getModel().getElementAt(index) + ".rbd"));
                    previousSelection = list.getSelectedValue();
                    isOpen = true;
                } else {
                    try {
                        if (previousSelection.equals(list.getModel().getElementAt(index))) {
                            lp.hide();
                            previousSelection = list.getSelectedValue();
                            list.clearSelection();
                            isOpen = false;
                        } else {
                            lp.hideThenShow();
                            previousSelection = list.getSelectedValue();
                            lp.load(new File("projects/" + Editor.getProjectName() + "/labels/"
                                    + list.getModel().getElementAt(index) + ".rbd"));
                        }
                    } catch (NullPointerException npe) {
                        lp.hide();
                        list.clearSelection();
                    }
                }
            } else if (evt.getClickCount() == 3) {
                int index = list.locationToIndex(evt.getPoint());
                if (isOpen == false) {
                    lp.show();
                    lp.load(new File("projects/" + Editor.getProjectName() + "/labels/"
                            + list.getModel().getElementAt(index) + ".rbd"));
                    previousSelection = list.getSelectedValue();
                    isOpen = true;
                } else {
                    try {
                        if (previousSelection.equals(list.getModel().getElementAt(index))) {
                            lp.hide();
                            previousSelection = list.getSelectedValue();
                            list.clearSelection();
                            isOpen = false;
                        } else {
                            lp.hideThenShow();
                            previousSelection = list.getSelectedValue();
                            lp.load(new File("projects/" + Editor.getProjectName() + "/labels/"
                                    + list.getModel().getElementAt(index) + ".rbd"));
                        }
                    } catch (NullPointerException npe) {
                        lp.hide();
                        list.clearSelection();
                    }
                }
            }
        }
    });
    JScrollPane listPane = new JScrollPane(labelList);
    listPane.getVerticalScrollBar().setUnitIncrement(Editor.SCROLL_SPEED);
    this.setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
    this.add(buttons);
    this.add(listPane);

}

From source file:jade.lang.acl.StringACLCodec.java

/**
 * if there was an automatical Base64 encoding, then it performs
 * automatic decoding./*from   w ww  .j  a  v a2  s.c o  m*/
 **/
private void checkBase64Encoding(ACLMessage msg) {
    String encoding = msg.getUserDefinedParameter(BASE64ENCODING_KEY);
    if (CaseInsensitiveString.equalsIgnoreCase(BASE64ENCODING_VALUE, encoding)) {
        try { // decode Base64
            String content = msg.getContent();
            if ((content != null) && (content.length() > 0)) {
                //char[] cc = new char[content.length()];
                //content.getChars(0,content.length(),cc,0);
                msg.setByteSequenceContent(Base64.decodeBase64(content.getBytes("US-ASCII")));
                msg.removeUserDefinedParameter(BASE64ENCODING_KEY); // reset the slot value for encoding
            }
        } catch (java.lang.StringIndexOutOfBoundsException e) {
            e.printStackTrace();
        } catch (java.lang.NullPointerException e2) {
            e2.printStackTrace();
        } catch (java.lang.NoClassDefFoundError jlncdfe) {
            System.err.println("\t\t===== E R R O R !!! =======\n");
            System.err.println("Missing support for Base64 conversions");
            System.err.println("Please refer to the documentation for details.");
            System.err.println("=============================================\n\n");
            try {
                Thread.currentThread().sleep(3000);
            } catch (InterruptedException ie) {
            }
        } catch (UnsupportedEncodingException e3) {
            System.err.println("\t\t===== E R R O R !!! =======\n");
            System.err.println("Missing support for US-ASCII encoding for Base64 conversions");
        }
    } //end of if CaseInsensitiveString
}

From source file:com.jainbooks.activitys.DashboardActivity.java

@Override
public void onBackPressed() {
    try {//  ww w .j a  va2 s.  com
        setTitle(mFragmentTitlesTitles[currentPosition]);
    } catch (NullPointerException e) {
        e.printStackTrace();
    }
    int i = getFragmentManager().getBackStackEntryCount();
    if (i == 0) {
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);

        // set title
        alertDialogBuilder.setTitle(R.string.app_name);

        // set dialog message
        alertDialogBuilder.setMessage("Do you want to exit ?").setCancelable(false)
                .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                        finish();
                    }
                }).setNegativeButton("No", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        // if this button is clicked, just close
                        // the dialog box and do nothing
                        dialog.cancel();
                    }
                });

        // create alert dialog
        AlertDialog alertDialog = alertDialogBuilder.create();

        // show it
        alertDialog.show();
    } else {
        super.onBackPressed();
    }

}

From source file:com.siacra.beans.PermanenciaDocBean.java

public Docente getPrincipal() {
    try {//from   ww w  .  j av  a  2s .  c om
        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        String name = auth.getName();
        User user = getUserService().getUserLogin(name);
        if (!getDocenteService().existDocente(user.getIdUsuario())) {
            principal = getDocenteService().getDocenteByUser(user.getIdUsuario());
        }
    } catch (NullPointerException e) {
        e.printStackTrace();
    }
    return principal;
}

From source file:fr.cobaltians.cobalt.plugin.CobaltPluginManager.java

/****************************************************************************************************************************************
  * COBALT METHODS/*from w w w.  j a va 2s . com*/
  ****************************************************************************************************************************************/

public boolean onMessage(Context context, CobaltFragment fragment, JSONObject message) {
    try {
        String pluginName = message.getString(Cobalt.kJSPluginName);
        Class<? extends CobaltAbstractPlugin> pluginClass = mPluginsMap.get(pluginName);
        if (pluginClass != null) {
            try {
                Method pluginGetInstanceMethod = pluginClass.getDeclaredMethod(GET_INSTANCE_METHOD_NAME,
                        CobaltPluginWebContainer.class);
                try {
                    CobaltPluginWebContainer webContainer = new CobaltPluginWebContainer((Activity) context,
                            fragment);
                    CobaltAbstractPlugin plugin = (CobaltAbstractPlugin) pluginGetInstanceMethod.invoke(null,
                            webContainer);
                    plugin.onMessage(webContainer, message);
                    return true;
                } catch (NullPointerException exception) {
                    if (Cobalt.DEBUG) {
                        Log.e(TAG, "onMessage: " + pluginClass.getSimpleName()
                                + ".getInstance(CobaltPluginWebContainer) method must be static.");
                        exception.printStackTrace();
                    }
                } catch (IllegalAccessException exception) {
                    if (Cobalt.DEBUG)
                        exception.printStackTrace();
                } catch (InvocationTargetException exception) {
                    if (Cobalt.DEBUG) {
                        Log.e(TAG, "onMessage: exception thrown by " + pluginClass.getSimpleName()
                                + ".getInstance(CobaltPluginWebContainer) method.");
                        exception.printStackTrace();
                    }
                }
            } catch (NoSuchMethodException exception) {
                if (Cobalt.DEBUG) {
                    Log.e(TAG, "onMessage: no method found matching " + pluginClass.getSimpleName()
                            + ".getInstance(CobaltPluginWebContainer).");
                    exception.printStackTrace();
                }
            }
        } else if (Cobalt.DEBUG)
            Log.e(TAG, "onMessage: no plugin class found for name " + pluginName + ".");
    } catch (JSONException exception) {
        if (Cobalt.DEBUG) {
            Log.e(TAG, "onMessage: name field not found or not a String.");
            exception.printStackTrace();
        }
    }

    return false;
}