Initializer.java
| Index Score | ||
|---|---|---|
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com.limegroup.gnutella.gui |
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FrostWire |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| EXEC_COMMENTS | Comments in executable code |  |
| LINE_COMMENT | Number of line comments | |
| EXITS | Procedure exits | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| SIZE | Size of the file in bytes | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| LOGICAL_LINES | Number of statements | |
| FUNCTIONS | Number of function declarations | |
| ELOC | Effective lines of code | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERANDS | Number of operands | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| LOC | Lines of code | |
| CYCLOMATIC | Cyclomatic complexity | |
| LINES | Number of lines in the source file | |
| JAVA0150 | JAVA0150 java.lang.Error (or subclass) thrown | |
| BLOCKS | Number of blocks | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| RETURNS | Number of return points from functions | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LOOPS | Number of loops | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
package com.limegroup.gnutella.gui;
import java.awt.Frame;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.plaf.basic.BasicHTML;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.limewire.i18n.I18nMarker;
import org.limewire.service.ErrorService;
import org.limewire.util.I18NConvert;
import org.limewire.util.OSUtils;
import org.limewire.util.Stopwatch;
import org.limewire.util.SystemUtils;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.limegroup.gnutella.LimeCoreGlue;
import com.limegroup.gnutella.LimeWireCore;
import com.limegroup.gnutella.LimeCoreGlue.InstallFailedException;
import com.limegroup.gnutella.browser.ExternalControl;
import com.limegroup.gnutella.bugs.BugManager;
import com.limegroup.gnutella.gui.init.SetupManager;
import com.limegroup.gnutella.gui.notify.NotifyUserProxy;
import com.limegroup.gnutella.gui.themes.ThemeSettings;
import com.limegroup.gnutella.settings.ApplicationSettings;
import com.limegroup.gnutella.settings.ConnectionSettings;
import com.limegroup.gnutella.settings.DaapSettings;
import com.limegroup.gnutella.settings.StartupSettings;
import com.limegroup.gnutella.util.LimeWireUtils;
import com.limegroup.gnutella.util.LogUtils;
/** Initializes (creates, starts, & displays) the LimeWire Core & UI. */
public final class Initializer {
/** The log -- set only after Log4J can be determined. */
private final Log LOG;
/** Refuse to start after this date */
private final long EXPIRATION_DATE = Long.MAX_VALUE;
/** True if is running from a system startup. */
private volatile boolean isStartup = false;
/** The start memory -- only set if debugging. */
private long startMemory;
/** A stopwatch for debug logging. */
private final Stopwatch stopwatch;
Initializer() {
// If Log4J is available then remove the NoOpLog
if (LogUtils.isLog4JAvailable()) {
System.getProperties().remove("org.apache.commons.logging.Log");
}
LOG = LogFactory.getLog(Initializer.class);
if(LOG.isTraceEnabled()) {
startMemory = Runtime.getRuntime().totalMemory()
- Runtime.getRuntime().freeMemory();
LOG.trace("START Initializer, using: " + startMemory + " memory");
}
stopwatch = new Stopwatch(LOG);
}
/**
* Initializes all of the necessary application classes.
*
* If this throws any exceptions, then LimeWire was not able to construct
* properly and must be shut down.
*/
void initialize(String args[], Frame awtSplash) throws Throwable {
// ** THE VERY BEGINNING -- DO NOT ADD THINGS BEFORE THIS **
preinit();
// Various startup tasks...
setupCallbacksAndListeners();
validateStartup(args);
// Creates LimeWire itself.
LimeWireGUI limewireGUI = createLimeWire();
LimeWireCore limeWireCore = limewireGUI.getLimeWireCore();
// Various tasks that can be done after core is glued & started.
glueCore(limeWireCore);
validateEarlyCore(limeWireCore);
// Validate any arguments or properties outside of the LW environment.
runExternalChecks(limeWireCore, args);
// Starts some system monitoring for deadlocks.
DeadlockSupport.startDeadlockMonitoring();
stopwatch.resetAndLog("Start deadlock monitor");
// Installs properties & resources.
installProperties();
installResources();
// Construct the SetupManager, which may or may not be shown.
final SetupManager setupManager = new SetupManager();
stopwatch.resetAndLog("construct SetupManager");
// Move from the AWT splash to the Swing splash & start early core.
switchSplashes(awtSplash);
startEarlyCore(setupManager, limeWireCore);
// Initialize early UI components, display the setup manager (if necessary),
// and ensure the save directory is valid.
initializeEarlyUI();
startSetupManager(setupManager);
validateSaveDirectory();
// Load the UI, system tray & notification handlers,
// and hide the splash screen & display the UI.
loadUI();
loadTrayAndNotifications();
hideSplashAndShowUI();
// Initialize late tasks, like Icon initialization & install listeners.
loadLateTasksForUI();
installListenersForUI(limeWireCore);
// Start the core & run any queued control requests, and load DAAP.
startCore(limeWireCore);
runQueuedRequests(limeWireCore);
startDAAP();
// Run any after-init tasks.
postinit();
}
/** Initializes the very early things. */
/*
* DO NOT CHANGE THIS WITHOUT KNOWING WHAT YOU'RE DOING.
* PREINSTALL MUST BE DONE BEFORE ANYTHING ELSE IS REFERENCED.
* (Because it sets the preference directory in CommonUtils.)
*/
private void preinit() {
// Make sure the settings directory is set.
try {
LimeCoreGlue.preinstall();
stopwatch.resetAndLog("Preinstall");
} catch(InstallFailedException ife) {
failPreferencesPermissions();
}
}
/** Installs all callbacks & listeners. */
private void setupCallbacksAndListeners() {
// Set the error handler so we can receive core errors.
ErrorService.setErrorCallback(new ErrorHandler());
stopwatch.resetAndLog("ErrorHandler install");
// Set the messaging handler so we can receive core messages
org.limewire.service.MessageService.setCallback(new MessageHandler());
stopwatch.resetAndLog("MessageHandler install");
// Set the default event error handler so we can receive uncaught
// AWT errors.
DefaultErrorCatcher.install();
stopwatch.resetAndLog("DefaultErrorCatcher install");
if (OSUtils.isMacOSX()) {
// Raise the number of allowed concurrent open files to 1024.
SystemUtils.setOpenFileLimit(1024);
stopwatch.resetAndLog("Open file limit raise");
if(ThemeSettings.isBrushedMetalTheme())
System.setProperty("apple.awt.brushMetalLook", "true");
MacEventHandler.instance();
stopwatch.resetAndLog("MacEventHandler instance");
}
}
/**
* Ensures this should continue running, by checking
* for expiration failures or startup settings.
*/
private void validateStartup(String[] args) {
// check if this version has expired.
if (System.currentTimeMillis() > EXPIRATION_DATE)
failExpired();
// If this is a request to launch a pmf then just do it and exit.
if ( args.length >= 2 && "-pmf".equals(args[0]) ) {
PackagedMediaFileLauncher.launchFile(args[1], false);
System.exit(0);
}
// Yield so any other events can be run to determine
// startup status, but only if we're going to possibly
// be starting...
if(StartupSettings.RUN_ON_STARTUP.getValue()) {
stopwatch.reset();
Thread.yield();
stopwatch.resetAndLog("Thread yield");
}
if (args.length >= 1 && "-startup".equals(args[0]))
isStartup = true;
if (isStartup) {
// if the user doesn't want to start on system startup, exit the
// JVM immediately
if(!StartupSettings.RUN_ON_STARTUP.getValue())
System.exit(0);
}
}
/** Wires together LimeWire. */
private LimeWireGUI createLimeWire() {
stopwatch.reset();
Injector injector = Guice.createInjector(new LimeWireModule());
stopwatch.resetAndLog("Create injector");
LimeWireGUI limeWireGUI = injector.getInstance(LimeWireGUI.class);
stopwatch.resetAndLog("Get LimeWireGUI");
return limeWireGUI;
}
/** Wires together remaining non-Guiced pieces. */
private void glueCore(LimeWireCore limeWireCore) {
limeWireCore.getLimeCoreGlue().install();
stopwatch.resetAndLog("Install core glue");
}
/** Tasks that can be done after core is created, before it's started. */
private void validateEarlyCore(LimeWireCore limeWireCore) {
// See if our NIODispatcher clunked out.
if(!limeWireCore.getNIODispatcher().isRunning()) {
failInternetBlocked();
}
stopwatch.resetAndLog("Check for NIO dispatcher");
}
/**
* Initializes any code that is dependent on external controls.
* Specifically, GURLHandler & MacEventHandler on OS X,
* ensuring that multiple LimeWire's can't run at once,
* and processing any arguments that were passed to LimeWire.
*/
private void runExternalChecks(LimeWireCore limeWireCore, String[] args) {
ExternalControl externalControl = limeWireCore.getExternalControl();
stopwatch.resetAndLog("Get externalControl");
if(OSUtils.isMacOSX()) {
GURLHandler.getInstance().enable(externalControl);
stopwatch.resetAndLog("Enable GURL");
MacEventHandler.instance().enable(externalControl, this);
stopwatch.resetAndLog("Enable macEventHandler");
}
// Test for preexisting LimeWire and pass it a magnet URL if one
// has been passed in.
if (args.length > 0 && !args[0].equals("-startup")) {
String arg = externalControl.preprocessArgs(args);
stopwatch.resetAndLog("Preprocess args");
externalControl.checkForActiveLimeWire(arg);
stopwatch.resetAndLog("Check for active LW");
externalControl.enqueueControlRequest(arg);
stopwatch.resetAndLog("Enqueue control req");
} else if (!StartupSettings.ALLOW_MULTIPLE_INSTANCES.getValue()) {
// if we don't want multiple instances, we need to check if
// limewire is already active.
externalControl.checkForActiveLimeWire();
stopwatch.resetAndLog("Check for active LW");
}
}
/** Installs any system properties. */
private void installProperties() {
System.setProperty("http.agent", LimeWireUtils.getHttpServer());
stopwatch.resetAndLog("set system properties");
if (OSUtils.isMacOSX()) {
System.setProperty("apple.laf.useScreenMenuBar", "true");
stopwatch.resetAndLog("set OSX properties");
}
}
/** Sets up ResourceManager. */
private void installResources() {
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
stopwatch.resetAndLog("wait for event queue");
ResourceManager.instance();
stopwatch.resetAndLog("ResourceManager instance");
}
});
stopwatch.resetAndLog("come back from evt queue");
}
/** Starts any early core-related functionality. */
private void startEarlyCore(SetupManager setupManager, LimeWireCore limeWireCore) {
// Add this running program to the Windows Firewall Exceptions list
boolean inFirewallException = FirewallUtils.addToFirewall();
stopwatch.resetAndLog("add firewall exception");
if(!inFirewallException && !setupManager.shouldShowFirewallWindow()) {
limeWireCore.getLifecycleManager().loadBackgroundTasks();
stopwatch.resetAndLog("load background tasks");
}
}
/** Switches from the AWT splash to the Swing splash. */
private void switchSplashes(Frame awtSplash) {
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
// Show the splash screen if we're not starting automatically on
// system startup
if(!isStartup) {
SplashWindow.instance().begin();
stopwatch.resetAndLog("begin splash window");
}
}
});
if(awtSplash != null) {
awtSplash.dispose();
stopwatch.resetAndLog("dispose AWT splash");
}
}
/** Initializes any early UI tasks, such as HTML loading & the Bug Manager. */
private void initializeEarlyUI() {
// Load up the HTML engine.
GUIMediator.setSplashScreenString(I18n.tr("Loading HTML Engine..."));
stopwatch.resetAndLog("update splash for HTML engine");
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
stopwatch.resetAndLog("enter evt queue");
JLabel label = new JLabel();
// setting font and color to null to minimize generated css
// script
// which causes a parser exception under circumstances
label.setFont(null);
label.setForeground(null);
BasicHTML.createHTMLView(label, "<html>.</html>");
stopwatch.resetAndLog("create HTML view");
}
});
stopwatch.resetAndLog("return from evt queue");
// Initialize the bug manager
BugManager.instance();
stopwatch.resetAndLog("BugManager instance");
}
/** Starts the SetupManager, if necessary. */
private void startSetupManager(final SetupManager setupManager) {
// Run through the initialization sequence -- this must always be
// called before GUIMediator constructs the LibraryTree!
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
stopwatch.resetAndLog("event evt queue");
// Then create the setup manager if needed.
setupManager.createIfNeeded();
stopwatch.resetAndLog("create setupManager if needed");
}
});
stopwatch.resetAndLog("return from evt queue");
}
/** Ensures the save directory is valid. */
private void validateSaveDirectory() {
// Make sure the save directory is valid.
SaveDirectoryHandler.handleSaveDirectory();
stopwatch.resetAndLog("check save directory validity");
}
/** Loads the UI. */
private void loadUI() {
GUIMediator.setSplashScreenString(I18n.tr("Loading User Interface..."));
stopwatch.resetAndLog("update splash for UI");
// To prevent deadlocks, the GUI must be constructed in the Swing thread.
// (Except on OS X, which is strange.)
if (OSUtils.isMacOSX()) {
GUIMediator.instance();
stopwatch.resetAndLog("OSX GUIMediator instance");
} else {
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
stopwatch.resetAndLog("enter evt queue");
GUIMediator.instance();
stopwatch.resetAndLog("GUImediator instance");
}
});
stopwatch.resetAndLog("return from evt queue");
}
GUIMediator.setSplashScreenString(I18n.tr("Loading Core Components..."));
stopwatch.resetAndLog("update splash for core");
}
/** Loads the system tray & other notifications. */
private void loadTrayAndNotifications() {
// Create the user desktop notifier object.
// This must be done before the GUI is made visible,
// otherwise the user can close it and not see the
// tray icon.
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
stopwatch.resetAndLog("enter evt queue");
NotifyUserProxy.instance();
stopwatch.resetAndLog("NotifYUserProxy instance");
if (!ApplicationSettings.DISPLAY_TRAY_ICON.getValue())
NotifyUserProxy.instance().hideTrayIcon();
SettingsWarningManager.checkTemporaryDirectoryUsage();
SettingsWarningManager.checkSettingsLoadSaveFailure();
stopwatch.resetAndLog("end notify runner");
}
});
stopwatch.resetAndLog("return from evt queue");
}
/** Hides the splash screen and sets the UI for allowing viz. */
private void hideSplashAndShowUI() {
// Hide the splash screen and recycle its memory.
if(!isStartup) {
SplashWindow.instance().dispose();
stopwatch.resetAndLog("hide splash");
}
GUIMediator.allowVisibility();
stopwatch.resetAndLog("allow viz");
// Make the GUI visible.
if(!isStartup) {
GUIMediator.setAppVisible(true);
stopwatch.resetAndLog("set app visible TRUE");
} else {
GUIMediator.startupHidden();
stopwatch.resetAndLog("start hidden");
}
}
/** Runs any late UI tasks, such as initializing Icons, I18n support. */
private void loadLateTasksForUI() {
// Initialize IconManager.
GUIMediator.setSplashScreenString(I18n.tr("Loading Icons..."));
GUIMediator.safeInvokeAndWait(new Runnable() {
public void run() {
IconManager.instance();
}
});
stopwatch.resetAndLog("IconManager instance");
// Touch the I18N stuff to ensure it loads properly.
GUIMediator.setSplashScreenString(I18n.tr("Loading Internationalization Support..."));
I18NConvert.instance();
stopwatch.resetAndLog("I18nConvert instance");
}
/** Sets up any listeners for the UI. */
private void installListenersForUI(LimeWireCore limeWireCore) {
limeWireCore.getFileManager().addFileEventListener(new FileManagerWarningManager(NotifyUserProxy.instance()));
}
/** Starts the core. */
private void startCore(LimeWireCore limeWireCore) {
// Start the backend threads. Note that the GUI is not yet visible,
// but it needs to be constructed at this point
limeWireCore.getLifecycleManager().start();
stopwatch.resetAndLog("lifecycle manager start");
if (!ConnectionSettings.DISABLE_UPNP.getValue()) {
limeWireCore.getUPnPManager().start();
stopwatch.resetAndLog("start UPnPManager");
}
// Instruct the gui to perform tasks that can only be performed
// after the backend has been constructed.
GUIMediator.instance().coreInitialized();
stopwatch.resetAndLog("core initialized");
}
/** Runs control requests that we queued early in initializing. */
private void runQueuedRequests(LimeWireCore limeWireCore) {
// Activate a download for magnet URL locally if one exists
limeWireCore.getExternalControl().runQueuedControlRequest();
stopwatch.resetAndLog("run queued control req");
}
/** Starts DAAP. */
private void startDAAP() {
if (DaapSettings.DAAP_ENABLED.getValue()) {
try {
GUIMediator.setSplashScreenString(I18n.tr("Loading Digital Audio Access Protocol..."));
DaapManager.instance().start();
stopwatch.resetAndLog("daap start");
DaapManager.instance().init();
stopwatch.resetAndLog("daap init");
} catch (IOException err) {
GUIMediator.showError(I18n.tr("FrostWire was unable to start the Digital Audio Access Protocol Service (for sharing files in iTunes). This feature will be turned off. You can turn it back on in options, under iTunes -> Sharing."));
DaapSettings.DAAP_ENABLED.setValue(false);
}
}
}
/** Runs post initialization tasks. */
private void postinit() {
// Tell the GUI that loading is all done.
GUIMediator.instance().loadFinished();
stopwatch.resetAndLog("load finished");
// update the repaintInterval after the Splash is created,
// so that the splash gets the smooth animation.
if(OSUtils.isMacOSX())
UIManager.put("ProgressBar.repaintInterval", new Integer(500));
if(LOG.isTraceEnabled()) {
long stopMemory = Runtime.getRuntime().totalMemory()
- Runtime.getRuntime().freeMemory();
LOG.trace("STOP Initializer, using: " + stopMemory +
" memory, consumed: " + (stopMemory - startMemory));
}
}
/**
* Sets the startup property to be true.
*/
void setStartup() {
isStartup = true;
}
/** Fails because alpha expired. */
private void failExpired() {
fail(I18nMarker.marktr("This Alpha version has expired. Press Ok to exit. "));
}
/** Fails because internet is blocked. */
private void failInternetBlocked() {
fail(I18nMarker
.marktr("FrostWire was unable to initialize and start. This is usually due to a firewall program blocking FrostWire\'s access to the internet or loopback connections on the local machine. Please allow FrostWire access to the internet and restart FrostWire."));
}
/** Fails because preferences can't be set. */
private void failPreferencesPermissions() {
fail(I18nMarker
.marktr("FrostWire could not create a temporary preferences folder.\n\nThis is generally caused by a lack of permissions. Please make sure that FrostWire (and you) have access to create files/folders on your computer. If the problem persists, please visit www.frostwire.com and click the 'Support' link.\n\nFrostWire will now exit. Thank You."));
}
/** Shows a msg & fails. */
private void fail(final String msgKey) {
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
JOptionPane.showMessageDialog(null,
new MultiLineLabel(I18n.tr(msgKey), 400),
I18n.tr("Error"),
JOptionPane.ERROR_MESSAGE);
}
});
} catch (InterruptedException ignored) {
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if(cause instanceof RuntimeException)
throw (RuntimeException)cause;
if(cause instanceof Error)
throw (Error)cause;
throw new RuntimeException(cause);
}
System.exit(1);
}
}
The table below shows all metrics for Initializer.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 67.00 | Number of blocks | |
| BLOCK_COMMENT | 5.00 | Number of block comment lines | |
| COMMENTS | 120.00 | Comment lines | |
| COMMENT_DENSITY | 0.38 | Comment density | |
| COMPARISONS | 29.00 | Number of comparison operators | |
| CYCLOMATIC | 74.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 36.00 | Comments in declarations | |
| DOC_COMMENT | 50.00 | Number of javadoc comment lines | |
| ELOC | 313.00 | Effective lines of code | |
| EXEC_COMMENTS | 46.00 | Comments in executable code | |
| EXITS | 116.00 | Procedure exits | |
| FUNCTIONS | 38.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 48.63 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 58.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 1.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 8.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 1.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 1.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 15.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 1.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 2.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 3.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 1.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 1.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 0.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 580.00 | Number of lines in the source file | |
| LINE_COMMENT | 65.00 | Number of line comments | |
| LOC | 374.00 | Lines of code | |
| LOGICAL_LINES | 221.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 851.00 | Number of operands | |
| OPERATORS | 1626.00 | Number of operators | |
| PARAMS | 15.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2477.00 | Halstead program length | |
| PROGRAM_VOCAB | 390.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 43.00 | Number of return points from functions | |
| SIZE | 23382.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 350.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 40.00 | Number of unique operators | |
| WHITESPACE | 86.00 | Number of whitespace lines | |