Mirror.java
| Index Score | ||
|---|---|---|
 |
 |
util.io |
 |
 |
TV-Browser |
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 |  |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| BLOCKS | Number of blocks | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| EXITS | Procedure exits | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| SIZE | Size of the file in bytes | |
| OPERANDS | Number of operands | |
| CYCLOMATIC | Cyclomatic complexity | |
| LINE_COMMENT | Number of line comments | |
| LOGICAL_LINES | Number of statements | |
| UNIQUE_OPERATORS | Number of unique operators | |
| COMPARISONS | Number of comparison operators | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0008 | JAVA0008 Empty catch block | |
| JAVA0076 | JAVA0076 Use of magic number | |
| LINES | Number of lines in the source file | |
| PROGRAM_VOLUME | Halstead program volume | |
| ELOC | Effective lines of code | |
| LOC | Lines of code | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0087 | JAVA0087 Use of Thread.sleep() | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| RETURNS | Number of return points from functions | |
| PARAMS | Number of formal parameter declarations | |
| COMMENTS | Comment lines | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* TV-Browser
* Copyright (C) 04-2003 Martin Oberhauser (darras@users.sourceforge.net)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* CVS information:
* $RCSfile$
* $Source$
* $Date: 2008-03-24 10:33:22 -0400 (Mon, 24 Mar 2008) $
* $Author: Bananeweizen $
* $Revision: 4438 $
*/
package util.io;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.StringTokenizer;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import devplugin.Date;
import devplugin.ProgressMonitor;
import util.exc.TvBrowserException;
/**
*
*
* @author Til Schneider, www.murfman.de
*/
public class Mirror {
/** The localizer for this class. */
public static final util.ui.Localizer mLocalizer = util.ui.Localizer.getLocalizerFor(Mirror.class);
private static final int MAX_UP_TO_DATE_CHECKS = 10;
private static final int MAX_LAST_UPDATE_DAYS = 5;
/** The name extension of mirror files */
public static final String MIRROR_LIST_FILE_NAME = "mirrorlist.gz";
private static java.util.logging.Logger mLog = java.util.logging.Logger.getLogger(Mirror.class.getName());
/** The default weight of a mirror */
public static final int DEFAULT_WEIGHT = 100;
private String mUrl;
private int mWeight;
/** List of blocked Servers */
private static ArrayList<String> BLOCKEDSERVERS = new ArrayList<String>();
/** Mirror-Download Running?*/
private static boolean mMirrorDownloadRunning = true;
/** Exception on downloading in Thread */
private static boolean mDownloadException = false;
/** Data of Mirror-Download*/
private static byte[] mMirrorDownloadData = null;
/**
* @param url
* @param weight
*/
public Mirror(String url, int weight) {
// Escape spaces in the URL
mUrl = IOUtilities.replace(url, " ", "%20");
mWeight = weight;
}
/**
* Creates an instance with the given URL
* and the default weight for this mirror.
*
* @param url The URL of the mirror.
*/
public Mirror(String url) {
this(url, DEFAULT_WEIGHT);
}
/**
* Gets the URL of this Mirror.
*
* @return The URL of this Mirror.
*/
public String getUrl() {
return mUrl;
}
/**
* Gets the weight of this Mirror.
*
* @return The weight of this Mirror.
*/
public int getWeight() {
return mWeight;
}
/**
* Sets the weight of this Mirror.
*
* @param weight The new weight of this Mirror.
*/
public void setWeight(int weight) {
mWeight = weight;
}
/**
* Reads the mirrors from the given stream.
*
* @param stream The stream to read the mirros from.
* @return The mirror array read from the stream.
* @throws IOException Thrown if something went wrong.
* @throws FileFormatException Thrown if something went wrong.
*/
private static Mirror[] readMirrorListFromStream(InputStream stream) throws IOException, FileFormatException {
GZIPInputStream gIn = new GZIPInputStream(stream);
BufferedReader reader = new BufferedReader(new InputStreamReader(gIn));
ArrayList<Mirror> list = new ArrayList<Mirror>();
String line;
int lineCount = 1;
while ((line = reader.readLine()) != null) {
line = line.trim();
if (line.length() > 0) {
// This is not an empty line -> read it
StringTokenizer tokenizer = new StringTokenizer(line, ";");
if (tokenizer.countTokens() < 2) {
throw new FileFormatException("Syntax error in mirror file line " + lineCount + ": '" + line + "'");
}
String url = tokenizer.nextToken();
String weightAsString = tokenizer.nextToken();
int weight;
try {
weight = Integer.parseInt(weightAsString);
} catch (Exception exc) {
throw new FileFormatException("Syntax error in mirror file line " + lineCount + ": weight is not a number: '"
+ weightAsString + "'");
}
list.add(new Mirror(url, weight));
}
lineCount++;
}
gIn.close();
Mirror[] mirrorArr = new Mirror[list.size()];
list.toArray(mirrorArr);
return mirrorArr;
}
/**
* Reads the mirrors in the given file.
*
* @param file The file to read the mirros from.
* @return The mirror array read from the file.
* @throws IOException Thrown if something went wrong.
* @throws FileFormatException Thrown if something went wrong.
*/
public static Mirror[] readMirrorListFromFile(File file) throws IOException, FileFormatException {
BufferedInputStream stream = null;
try {
stream = new BufferedInputStream(new FileInputStream(file), 0x2000);
return readMirrorListFromStream(stream);
} finally {
if (stream != null) {
try {
stream.close();
} catch (IOException exc) {
}
}
}
}
/**
* Write the mirror array to the given stream.
*
* @param stream The stream to write the mirror array to.
* @param mirrorArr The mirror array to write.
* @throws IOException Thrown if something went wrong.
*/
private static void writeMirrorListToStream(OutputStream stream, Mirror[] mirrorArr) throws IOException {
GZIPOutputStream gOut = new GZIPOutputStream(stream);
PrintWriter writer = new PrintWriter(gOut);
for (Mirror mirror : mirrorArr) {
writer.print(mirror.getUrl());
writer.print(";");
writer.println(String.valueOf(mirror.getWeight()));
}
writer.close();
gOut.close();
}
/**
*
*
* @param file The file to write the mirror array to.
* @param mirrorArr The mirror array to write.
* @throws IOException Thrown if something went wrong.
*/
public static void writeMirrorListToFile(File file, Mirror[] mirrorArr) throws IOException {
// NOTE: We need two try blocks to ensure that the file is closed in the
// outer block.
try {
FileOutputStream stream = null;
try {
stream = new FileOutputStream(file);
writeMirrorListToStream(stream, mirrorArr);
} finally {
// Close the file in every case
if (stream != null) {
try {
stream.close();
} catch (IOException exc) {
}
}
}
} catch (IOException exc) {
file.delete();
throw exc;
}
}
@Override
public int hashCode() {
final int PRIME = 31;
int result = 1;
result = PRIME * result + ((mUrl == null) ? 0 : mUrl.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Mirror other = (Mirror) obj;
if (mUrl == null) {
if (other.mUrl != null) {
return false;
}
} else if (!mUrl.equals(other.mUrl)) {
return false;
}
return true;
}
/**
* Loads the mirror lists from the given file
* and the given server defined mirror array.
*
* @param file The file to load the mirrors from.
* @param mirrorUrlArr The array with the current mirrors urls.
* @param serverDefindedMirros The array with the server definded mirrors
* @return The load mirror array.
*/
public static Mirror[] loadMirrorList(File file, String[] mirrorUrlArr, Mirror[] serverDefindedMirros) {
try {
ArrayList<Mirror> mirrorList = new ArrayList<Mirror>(Arrays.asList(Mirror.readMirrorListFromFile(file)));
for (int i=0;i<mirrorUrlArr.length;i++) {
Mirror basemirror = mirrorList.get(i);
if (!mirrorList.contains(basemirror)) {
mirrorList.add(basemirror);
}
}
if(serverDefindedMirros != null) {
for(int i = 0; i < serverDefindedMirros.length; i++) {
if(!mirrorList.contains(serverDefindedMirros[i])) {
mirrorList.add(serverDefindedMirros[i]);
}
}
}
return mirrorList.toArray(new Mirror[mirrorList.size()]);
} catch (Exception exc) {
ArrayList<Mirror> mirrorList = new ArrayList<Mirror>();
for (int i = 0; i < mirrorUrlArr.length; i++) {
if (!BLOCKEDSERVERS.contains(getServerBase(mirrorUrlArr[i])) && mirrorUrlArr[i] != null) {
mirrorList.add(new Mirror(mirrorUrlArr[i]));
}
}
return mirrorList.toArray(new Mirror[mirrorList.size()]);
}
}
/**
* Get the Server-Domain of the Url
* @param url Url to fetch the Server-Domain from
* @return Server-Domain
*/
private static String getServerBase(String url) {
if (url.startsWith("http://")) {
url = url.substring(7);
}
if (url.indexOf('/') >= 0) {
url = url.substring(0, url.indexOf('/'));
}
return url;
}
private static Mirror chooseMirror(Mirror[] mirrorArr, Mirror oldMirror, String name, Class caller) throws TvBrowserException {
Mirror[] oldMirrorArr = mirrorArr;
/* remove the old mirror from the mirrorlist */
if (oldMirror != null) {
ArrayList<Mirror> mirrors = new ArrayList<Mirror>();
for (Mirror mirror : mirrorArr) {
if (oldMirror != mirror) {
mirrors.add(mirror);
}
}
mirrorArr = new Mirror[mirrors.size()];
mirrors.toArray(mirrorArr);
}
// Get the total weight
int totalWeight = 0;
for (Mirror mirror : mirrorArr) {
totalWeight += mirror.getWeight();
}
// Choose a weight
int chosenWeight = (int) (Math.random() * totalWeight);
// Find the chosen mirror
int currWeight = 0;
for (Mirror mirror : mirrorArr) {
currWeight += mirror.getWeight();
if (currWeight > chosenWeight) {
// Check whether this is the old mirror or Mirror is Blocked
if (((mirror == oldMirror) || BLOCKEDSERVERS.contains(getServerBase(mirror.getUrl()))) && (mirrorArr.length > 1)) {
// We chose the old mirror -> chose another one
return chooseMirror(mirrorArr, oldMirror, name, caller);
} else {
return mirror;
}
}
}
// We didn't find a mirror? This should not happen -> throw exception
StringBuffer buf = new StringBuffer();
for (Mirror mirror : oldMirrorArr) {
buf.append(mirror.getUrl()).append("\n");
}
throw new TvBrowserException(caller, "error.2", "No mirror found\ntried following mirrors: ", name, buf.toString());
}
/**
* Chooses a up to date mirror.
*
* @param mirrorArr The mirror array to check.
* @param monitor The progress monitor to use.
* @param name The name of the file to check.
* @param id The id of the file to check.
* @param caller The caller class.
* @param additionalErrorMsg An additonal error message value.
* @return The choosen mirror.
* @throws TvBrowserException Thrown if no up to date mirror was found or something went wrong.
*/
public static Mirror chooseUpToDateMirror(Mirror[] mirrorArr, ProgressMonitor monitor, String name, String id, Class caller, String additionalErrorMsg) throws TvBrowserException {
boolean isUpToDate = false;
// Choose a random Mirror
Mirror mirror = chooseMirror(mirrorArr, null, name, caller);
if (monitor != null) {
monitor.setMessage(mLocalizer.msg("info.3", "Try to connect to mirror {0}", mirror.getUrl()));
}
// Check whether the mirror is up to date and available
for (int i = 0; i < MAX_UP_TO_DATE_CHECKS; i++) {
try {
if (mirrorIsUpToDate(mirror, id)) {
isUpToDate = true;
break;
} else {
// This one is not up to date -> choose another one
Mirror oldMirror = mirror;
mirror = chooseMirror(mirrorArr, mirror, name, caller);
mLog.info("Mirror " + oldMirror.getUrl() + " is out of date or down. Choosing " + mirror.getUrl() + " instead.");
if (monitor != null) {
monitor.setMessage(mLocalizer.msg("info.4", "Mirror {0} is out of date or down. Choosing {1}", oldMirror.getUrl(), mirror
.getUrl()));
}
}
} catch (TvBrowserException exc) {
String blockedServer = getServerBase(mirror.getUrl());
BLOCKEDSERVERS.add(blockedServer);
mLog.info("Server blocked : " + blockedServer);
if(mirrorArr.length == 1 && mirrorArr[0].equals(mirror)) {
throw new TvBrowserException(caller, "noUpToDateServer", "The mirror {0} is out of date or down and no other mirror is available." + additionalErrorMsg, mirror.getUrl());
}
// This one is not available -> choose another one
Mirror oldMirror = mirror;
mirror = chooseMirror(mirrorArr, mirror, name, caller);
mLog.info("Mirror " + oldMirror.getUrl() + " is not available. Choosing " + mirror.getUrl() + " instead.");
if (monitor != null) {
monitor.setMessage(mLocalizer.msg("info.5", "Mirror {0} is not available. Choosing {1}", oldMirror.getUrl(), mirror
.getUrl()));
}
}
}
// Return the mirror
if (isUpToDate) {
return mirror;
}
else {
throw new TvBrowserException(caller, "noUpToDateServer", "The mirror {0} is out of date or down and no other mirror is available." + additionalErrorMsg, mirror.getUrl());
}
}
private static boolean mirrorIsUpToDate(Mirror mirror, String id) throws TvBrowserException {
// Load the lastupdate file and parse it
final String url = mirror.getUrl() + (mirror.getUrl().endsWith("/") ? "" : "/") + id + "_lastupdate";
Date lastupdated;
mMirrorDownloadRunning = true;
mMirrorDownloadData = null;
mDownloadException = false;
mLog.info("Loading MirrorDate from " + url);
new Thread(new Runnable() {
public void run() {
try {
mMirrorDownloadData = IOUtilities.loadFileFromHttpServer(new URL(url), 60000);
} catch (Exception e) {
mDownloadException = true;
}
mMirrorDownloadRunning = false;
};
}, "Load mirror date from "+url).start();
int num = 0;
// Wait till second Thread is finished or 15000 ms reached
while ((mMirrorDownloadRunning) && (num < 150)) {
num++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if (mMirrorDownloadRunning || mMirrorDownloadData == null || mDownloadException) {
mLog.info("Server " + url +" is down!");
return false;
}
try {
// Parse is. E.g.: '2003-10-09 11:48:45'
String asString = new String(mMirrorDownloadData);
int year = Integer.parseInt(asString.substring(0, 4));
int month = Integer.parseInt(asString.substring(5, 7));
int day = Integer.parseInt(asString.substring(8, 10));
lastupdated = new Date(year, month, day);
mLog.info("Done !");
return lastupdated.compareTo(new Date().addDays(-MAX_LAST_UPDATE_DAYS)) >= 0;
}catch(NumberFormatException parseException) {
mLog.info("The file on the server has the wrong format!");
}
return false;
}
/**
* Reset the List of banned Servers
*/
public static void resetBannedServers() {
BLOCKEDSERVERS.clear();
}
}
The table below shows all metrics for Mirror.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 81.00 | Number of blocks | |
| BLOCK_COMMENT | 26.00 | Number of block comment lines | |
| COMMENTS | 141.00 | Comment lines | |
| COMMENT_DENSITY | 0.58 | Comment density | |
| COMPARISONS | 46.00 | Number of comparison operators | |
| CYCLOMATIC | 69.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 22.00 | Comments in declarations | |
| DOC_COMMENT | 96.00 | Number of javadoc comment lines | |
| ELOC | 245.00 | Effective lines of code | |
| EXEC_COMMENTS | 19.00 | Comments in executable code | |
| EXITS | 59.00 | Procedure exits | |
| FUNCTIONS | 18.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 78.48 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 64.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | 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 | 2.00 | 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 | 0.00 | 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 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | 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 | 4.00 | 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 | 1.00 | 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 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | 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 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | 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 | 0.00 | 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 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 1.00 | 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 | 4.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | 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 | 3.00 | 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 | 3.00 | 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 | 1.00 | 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 | 2.00 | 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 | 516.00 | Number of lines in the source file | |
| LINE_COMMENT | 19.00 | Number of line comments | |
| LOC | 312.00 | Lines of code | |
| LOGICAL_LINES | 165.00 | Number of statements | |
| LOOPS | 6.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 770.00 | Number of operands | |
| OPERATORS | 1500.00 | Number of operators | |
| PARAMS | 27.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2270.00 | Halstead program length | |
| PROGRAM_VOCAB | 313.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 37.00 | Number of return points from functions | |
| SIZE | 16279.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 260.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 53.00 | Number of unique operators | |
| WHITESPACE | 63.00 | Number of whitespace lines | |