API Java Util deprecation

The following code, shouts up a API deprecation problem. When i recompile the class with the code below using -deprecation, it comes up with a warning!!!!...is there another possible way to right the same code without such a problem (java.util.date.getMonth) is the culprit.
private void searchDatabase()
Date d = new Date();
int lmonth = d.getMonth() - 1;
SimpleDateFormat df = new SimpleDateFormat("EEE MMM dd yyyy");
Need help as you as anyone can help

Yes. Use java.util.Calendar.
The API explicitly says this. Read the docs. The docs are there to help you. Do not shun them.

Similar Messages

How to create a node in java.util.prefs.Preferences -- Need Help !!

Hi All
I want to know the way of implementing a Node using java.util.prefs.Preferences , and need to store a value.
Your Help wil be greatly appreciated
best Regards
Madumm

http://java.sun.com/j2se/1.5.0/docs/api/java/util/prefs/Preferences.html

Sort(java.util.LinkedList java.lang.Object ) doesn't work

Why doesn't this work?
LinkedList<Object> sysPropsKeys = new LinkedList<Object>(System.getProperties().keySet());
Collections.sort(sysPropsKeys);
cannot fnd symbol
symbol : method sort(java.util.LinkedList<java.lang.Object>)
location: class java.util.Collections

I will admit to not having Java1.5 installed on my machine. Haven't yet had the chance to play with generics, but the above DOES work in 1.4, and SHOULD work in 1.5
Maybe I'm naive but, System.getProperties() returns a Properties object right?
According to the API: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html: Each key and its corresponding value in the property list is a string.
All the keys SHOULD be strings.
AFAIK string are comparable, and shouldn't throw class cast exceptions
Thus the keys returned from getProperties SHOULD be comparable, and compatible for comparision.
Ok, I can see your point in that some hackers abuse the Properties class by putting non string keys/values into the Properties Map. In that case the code would become more like your above. I'd probably still go with a TreeMap though, rather than a sorted list of keys. Most time you want the keys, you want the values as well. So if the intention is to print out a sorted list of system properties, and their values, keeping it in a map is best.
Just my 2 cents,
evnafets

Compile error import java.util.map$entry

Hi,
I am trying to compile code which imports the following package
import java.util.Map$Entry.
The error thrown up is : cant resolve symbol Map$Entry. Why is there a $ in the package import path and is there some configuration required to compile the file.
I am not allowed to change the code. Does anyone have an idea on how this problem can be solved.
Thanks and regards
Kumar Vellal

Btw java docs for the interface are available at:
http://java.sun.com/j2se/1.4.2/docs/api/java/util/Map.Entry.html
Changing the import should probably help compile the code, but without changing the import .. need to check. This is just from what i remember now. Lets see if anyone else comments on this.

Problem with a Timer (Java.util)

Hello guys,
I have a small problem with Java timer. The problem is I wanne do some task let's say after 5 seconds, so I created a timer and set its delay to 5000 milli seconds and run my program to see that the task is well performed but the program doesn't end. I tried the timer.cancel() method or tried to assign it to null.... but never works.
So how do i make the program stop gracefully after the scheduled task finishes.
My Code...
int delay = 5000;
          timer = new Timer();
          //timer.schedule(task, delay)
          final boolean flag =true;
          timer.schedule(new TimerTask() {
               public void run() {
                    System.out.println("hello");       // the program is still waiting after executing this.... why?
          }, delay);
          // timer.cancel();
          System.out.println("ccc"); // these two are printed gracefully before the scheduled task... that's good.
          System.out.println("ddd");So any idea on how to solve this problem... make the timer stop after executing the required task.
Thanks in advance

Have a read of the JavaDocs, someone went to great lengths to write these to save you headaches like this.
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Timer.html
Have a play around with this code un-commenting the cancel, runTimerInDifferentScope and garbage collection call to see how it behaves each time.
import java.util.Timer;
import java.util.TimerTask;
public class TimerExample {
     public static void main(String[] args) {
          final Timer timer = new Timer();
          timer.schedule(new TimerTask() {
               @Override
               public void run() {
                    System.out.println("[A] After 1 second!");
                    //timer.cancel();
          }, 1000);
          System.out.println("[A]");
          //runTimerInDifferentScope();
          //System.gc();
     private static void runTimerInDifferentScope() {
          final Timer timer = new Timer();
          timer.schedule(new TimerTask() {
               @Override
               public void run() {
                    System.out.println(" After 1 second!");
                    //No need to cancel me, I will be garbage collected
          }, 1000);
          System.out.println("[B]");
Forgot to mention that the call to System.gc() was necessary to clear the timer. This is not something you should depend on (the garbage collector) in your application. I used it in this example because it's likely it would never run with such a small program and plenty of heap space left. If in doubt then use timer.cancel() as with the first example.
Edited by: michael- on Dec 15, 2009 12:42 PM

Subclassing java.util.logging.LogManager

i am trying to subclass the LogManager class and have tried adding the following System property as mentioned in the Java API :-
java.util.logging.manager = CustomLogger
where,
CustomLogger is the name of my subclass of LogManager.
Still, when I ran the program, the instance of the global log manager (java.util.logging.LogManager) is only created. It's not creating the instance of "CustomLogger".
I have tried to give the full package name of the subclass as follows, still it is creating the instance of java.util.logging.LogManager only:-
java.util.logging.manager = com.test.logging.CustomLogger
Any pointers to resolve this issue will be of great help..
~Thanks
Dev

devdas_kushe wrote:
I checked the LoggingPermission stuff, but could not figure out how it works..And did you check the IllegalAccessException stuff too? Like the documentation, which says:
An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.My guess is your class has a private constructor. This could happen if somebody had the bright idea of applying the Singleton pattern to it. If that's the case, drop the Singleton idea in favour of the Just Create One Of Them idea.
And I second what the others said about (a) preferring Log4J and (b) you probably not needing a custom LogManager.

RFC used for java.util.regex

Hi,
Does anyone know the RFC used for java.util.regex ??
Thanks & Regards,
Gurushant Hanchinal

Can you please give me the link to view to specifications for java.util.regex.. I have tried the link which is available in :
http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html page with name " Java Language Specification"
on click of this link, i am getting page not found error..
Please give me any other alternate links to view the regular expression specifications..
Thanks,
Gurushant Hanchinal

Java.util.Date() Can you print it without the time?

or is there another method that just prints the date?

Sure:
http://java.sun.com/javase/6/docs/api/java/text/DateFormat.html
Also look at http://java.sun.com/javase/6/docs/api/java/util/Calendar.html

Java.util.Arrays; (method sort( ) )

1) How to change a direction of sorting (on increase / on decrease)?
2) Whether exists in java 2 something similar for sorting Strings ?

1) How to change a direction of sorting (on increase
/ on decrease)?[url http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collections.html#reverseOrder()]http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collections.html#reverseOrder()
2) Whether exists in java 2 something similar for
sorting Strings ?Arrays.sort and Collections.sort will both sort the array or list as long as the type implements Comparable (or you supply a separate Comparator). Since String implements Comparable, those sort methods will sort the array or list of strings.
Making Java Objects Comparable
http://java.sun.com/docs/books/tutorial/collections/interfaces/order.html
http://www.javaworld.com/javaworld/jw-12-2002/jw-1227-sort.html

Java.util.Date deprecated methods, looking for new ones

Hi,
I can't find anywhere.
I'm looking for Date methods, exactly like
getYear();
getDay();
but i don't want them being deprecated.
I want to get an INT out of a Date (Year, Day, ...)
please give me a link, name of a fucntion or something.
Thanks

Look at the API docs. It says that you have to use the methods in java.util.Calendar instead.

Java.utils.prefs.Preferences API throws exception on Mac, not Windows

This is a Mac-specific problem. Is it a bug, or am I misusing the java.utils.prefs.Preferences API?
The Preferences flush() API call always throws a BackingStoreException if a system tree preferences root has been read. The system tree has not been modified or written to, but the flush() call is nevertheless throwing an exception. This occurs when running as a normal user without the ability to write to /Library/Preferences.
See sample code below. Note that I only want to read the system prefs tree. The user tree write flush fails. If the system tree node is not created, the user flush() succeeds.
Steps to Reproduce
Delete any existing Java prefs files:
~/Library/Preferences/com.apple.java.util.prefs.plist
~/Library/Preferences/com.mycompany.prefstest
/Library/Preferences/com.apple.java.util.prefs.plist
/Library/Preferences/com.mycompany.prefstest
Run the following Java code:
package com.mycompany.prefstest;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;
public class PrefsTest {
      * @param args
     public static void main(String[] args) {
          String strKey1 = "com/mycompany/prefstest/one/two/three/four/key1";
          Preferences systemRoot = Preferences.systemRoot();
          Preferences userRoot = Preferences.userRoot();
          // Get a value for user prefs.
          String value1 = userRoot.get(strKey1, "missing");
          // Fall back to system prefs if it is not defined.
          if (value1.equals("missing"))
               value1 = systemRoot.get(strKey1, "missing");
          System.out.println("key1 --> " + value1);
          // If still not defined, set a user-specific value
          if (value1.equals("missing"))
               userRoot.put(strKey1, "value1");
               try {
                    userRoot.flush();
                    System.out.println("flushed prefs successfully");
               catch (BackingStoreException e)
                    System.out.println("Exception: " + e.toString());
Expected Results
Should produce the output:
key --> missing
flushed prefs successfully
Actual Results
Console output is
key --> missing
Exception: java.util.prefs.BackingStoreException: Synchronization failed for node '/'
Notes
$ java -version
java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11D50b)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)
also tested with:
java version "1.7.0_04-ea"
Java(TM) SE Runtime Environment (build 1.7.0_04-ea-b16)
Java HotSpot(TM) 64-Bit Server VM (build 23.0-b17, mixed mode)
Mac OS X 10.7.3.
The "Expected Results" are correctly obtained running the same code on MS-Windows.
Running the jar as sudo works (with write access to /Library/Preferences), as expected.

Just for fun, try a key without slashes in it (but for example dots if you must use such a long key).
I say that because a quick Google search points out that Apple stores the preferences in a file hierarchy in the user home folder. I can already see how using keys which look like a file path are going to cause nuclear reactors to meltdown...

Java.util.zip java.util.jar API usage

I have been trying unsuccessfully for the past two days to be able to programatically add and extract files into and from a JAR using the API. I haven't found any API docs that cover the basics and I have been stumped using the nuggets that I have found on the Forum so far. Below is the code so far. Feel free to use what works in your programs, but if you find out how to get this to work. Sorry for the long post, but I gather this is a common problem that needs to be solved.
___________JAR CLASS_______________
import java.io.*;
import java.util.*;
import java.util.jar.*;
import java.util.zip.*;
public class Jar {
    public Jar() {
    public boolean copyToJar(File[] sources, File destination) {
        if (destination == null) {
            return false;
        if (nameContainsWildcards(destination)) {
            return false;
        File[] sourceArray = expandWildcards(sources);
        if (sourceArray == null) {
            System.out.println("sourceArray was empty");
            return false;
          System.out.println("Ready to add " + sourceArray.length + " files to " + destination);
          //variables for copying the old destination file to the new destination
          File tmpFile = null;
          JarFile tmpJarFile = null;
          InputStream jarInput = null;
          JarInputStream jarIn = null;
        InputStreamReader jarDataFile = null;
          //variables for the destination
        OutputStream output = null;
        JarOutputStream jarOut = null;
        File input = null;
        FileInputStream dataFile = null;
        int buf = -1;
          if (destination.exists()) {
               System.out.println("The destination file exists");
               //copy the destination to temporary
               //fix copyToJar to use the same .tmp file name as the destination (for reentrant code)
               tmpFile = new File(destination.getParent() + "\\" + "jar.tmp");
               if (tmpFile.exists()) {
                    tmpFile.delete();
               //rename the original to the TempFile
               destination.renameTo(tmpFile);
               if (destination.exists()) {
                    destination.delete();
               try {
                    tmpJarFile = new JarFile(tmpFile);
               } catch (IOException ioe) {
                    System.out.println("Exception while creating JarFile " + ioe );
        try {
               //initialize the destination
            output = new FileOutputStream(destination);
            jarOut = new JarOutputStream(output);
               //if there is a tmpFile copy contents of tmpFile to the new destination
               if (tmpFile != null) {
                    jarInput = new FileInputStream(tmpFile);
                    jarIn = new JarInputStream(jarInput);
                    ZipEntry ze = null;
                    boolean contains = false;
                    while((ze = jarIn.getNextEntry()) != null) {
                         System.out.println("Working on zipEntry " + ze.getName());
                         contains = false;
                         for (int i=0; i<sourceArray.length; i++) {
                              if (ze.getName().compareToIgnoreCase(sourceArray.getName()) == 0) {
                                   contains = true;
                         if (contains == false) {
          jarDataFile = new InputStreamReader(tmpJarFile.getInputStream(ze));
                              System.out.println("The zip Entry was copied from the old file");
                              jarOut.putNextEntry(ze);
                              buf = -1;
                              buf = jarDataFile.read();
                              while (buf != -1) {
                                   jarOut.write(buf);
                                   buf = jarDataFile.read();
                              jarOut.closeEntry();
                              jarDataFile.close();
                    jarIn.close();
                    jarInput.close();
                    tmpFile.delete();
                    tmpJarFile.close();
               //copy the new files to the destination
for (int i=0; i<sourceArray.length; i++) {
if (sourceArray[i].isDirectory()) {
                         //fix copyToJar to copy entire directory if the directory is given as a source
} else {
System.out.println("Adding " + sourceArray[i].getAbsolutePath() + " to "
+ destination.getAbsolutePath());
dataFile = new FileInputStream(sourceArray[i]);
ZipEntry entry= new ZipEntry(sourceArray[i].getName());
jarOut.putNextEntry(entry);
buf = -1;
buf = dataFile.read();
while (buf != -1) {
jarOut.write(buf);
buf = dataFile.read();
jarOut.closeEntry();
jarOut.close();
output.close();
dataFile.close();
} catch (IOException ioe) {
System.out.println("Exception " + ioe + " occured while writing the backup jar file.");
try {
if (jarOut != null)
jarOut.close();
if (output != null)
output.close();
if (dataFile != null)
dataFile.close();
if (jarInput != null)
jarInput.close();
if (jarIn != null)
jarIn.close();
} catch (IOException ioe2) {
System.out.println("Exception " + ioe2 + " closing the jar file.");
return false;
return true;
public boolean copyToJar(File source, File destination) {
File[] sourceArray = expandWildcards(source);
if (sourceArray == null) {
System.out.println("sourceArray was empty");
return false;
return copyToJar(sourceArray, destination);
     public boolean extractFromJar(File source, File extract, File destDirectory) {
          try {
               JarFile jarIn = new JarFile(source);
               ZipEntry ze = jarIn.getEntry(extract.getName());
               if (ze == null) {
                    System.out.println("Could not find file " + extract + " in jarFile " + source);
               } else {
                    JarInputStream jarInput = null;
                    InputStreamReader buf = null;
                    FileOutputStream out = null;
                    InputStream in = jarIn.getInputStream(ze);
                    buf = new InputStreamReader(in);
                    out = new FileOutputStream(extract);
                    int buffer = -1;
                    buffer = buf.read();
                    while (buffer != -1) {
                         out.write(buffer);
                         buffer = buf.read();
          } catch (IOException ioe) {
               System.out.println("Could not extract the file " + extract + " from jarFile " + source);
               return false;
          return true;
public int numberOfLines(File fileToCount) {
int num = 0;
try {
FileReader regRead = new FileReader(fileToCount);
LineNumberReader regReadLine = new LineNumberReader(regRead);
while (regReadLine.readLine() != null) {
num = regReadLine.getLineNumber();
regRead.close();
regReadLine.close();
} catch (IOException ioe) {
System.out.println("Exception " + ioe + " occured in " + this.getClass().getName());
return num;
static public boolean nameContainsWildcards(File source) {
if (source != null) {
if ((source.getName().indexOf('*')) >=0) {
return true;
//fix this check to look for other wildcards
return false;
* Expands the * wildcard that does not start the expression. For example,
* in a directory whose contents are TEST1.DAT, TEST2.DAT AND TEST3.DAT, this
* funtion will return the following based on the input
* Input Returns
* TEST1.DAT File[] containing the first file
* TEST*.DAT File[] containing all three files plus any that match TEST*.*
* T*.* File[] containing all three files plus any that match T*.*
* *.* File[] containing all three files plus any that match *.*
* EST.DAT File[] containing no files (not a legal expression...yet)
* ? or
public File[] expandWildcards(File source) {
if (source == null) {
System.out.println("Cannot expand wildCards for a null File");
return null;
File[] sourceArray = null;
if (nameContainsWildcards(source)) {
FileFilter wildcardFilter = new WildcardFilter(source.getName());
File sourceParent = new File(source.getParent());
if (sourceParent != null) {
sourceArray = sourceParent.listFiles(wildcardFilter);
} else {
sourceArray = new File[1];
sourceArray[0] = source;
} else {
sourceArray = new File[1];
sourceArray[0] = source;
return sourceArray;
public File[] expandWildcards(File[] sources) {
File[] sourceArray = null;
List fileArrays = new ArrayList();
for (int i=0; i< sources.length; i++) {
fileArrays.add(expandWildcards(sources[i]));
int totalFiles = 0;
for (int i=0; i < fileArrays.size(); i++) {
File[] tmp = (File []) fileArrays.get(i);
if (tmp != null) {
     //System.out.println("Adding " + tmp.length + " to total files");
     totalFiles += tmp.length;
System.out.println("totalFiles expanded = " + totalFiles);
sourceArray = new File[totalFiles];
int nextIndex = 0;
for (int i=0; i < fileArrays.size(); i++) {
File[] tmp = (File []) fileArrays.get(i);
if (tmp != null) {
                    for(int j=0; j < tmp.length; j++) {
                         //System.out.println("Adding file " + tmp[j] + " to sourceArray");
                         sourceArray[nextIndex] = tmp[j];
                         nextIndex++;
return sourceArray;
static public void main(String argv[]) {
Jar jarRun = new Jar();
File testFile = new File("D:\\test.jar");
          File testFile1 = new File("C:\\Program Files\\RBusinessSystems\\Location Sync\\LONGMONT\\LongmontDefaultCustomers.jar");
          File testFile2 = new File("C:\\Program Files\\RBusinessSystems\\Location Sync\\LONGMONT\\LongmontDefaultInventory.jar");
          File testFile3 = new File("C:\\Program Files\\RBusinessSystems\\Location Sync\\LONGMONT\\LongmontDefaultVendors.jar");
          File testFile4 = new File("C:\\Program Files\\RBusinessSystems\\Location Sync\\LONGMONT\\LongmontDefaultClerks.jar");
          if (argv.length >= 1) {
               System.out.println("Creating the Jar File");
               jarRun.copyToJar(testFile1, testFile);
               jarRun.copyToJar(testFile2, testFile);
               jarRun.copyToJar(testFile3, testFile);
               jarRun.copyToJar(testFile4, testFile);
          } else {
               System.out.println("Extracting from the Jar File");
               jarRun.extractFromJar(testFile, new File("d:\\LongmontDefaultCustomers.jar"), new File("d:\\"));
               jarRun.extractFromJar(testFile, new File("d:\\LongmontDefaultInventory.jar"), new File("d:\\"));
               jarRun.extractFromJar(testFile, new File("d:\\LongmontDefaultVendors.jar"), new File("d:\\"));
               jarRun.extractFromJar(testFile, new File("d:\\LongmontDefaultClerks.jar"), new File("d:\\"));
______________WILDCARD FILTER CLASS __________
import java.io.File;
import java.io.FileFilter;
public class WildcardFilter implements FileFilter {
    private String compare = null;
    private String wildcardStart = null;
    private String wildcardMiddle = null;
    private String wildcardEnd = null;
    WildcardFilter(String comparison) {
        setCompare(comparison);
    public void setCompare(String comparison) {
        compare = comparison.toLowerCase();
        wildcardStart = null;
        wildcardMiddle = null;
        wildcardEnd = null;
        int index = compare.indexOf('*');
        if (index != -1) {
            wildcardStart = compare.substring(0, index);
            if (index + 1 < compare.length()) {
                wildcardEnd = compare.substring(index + 1, compare.length());
            System.out.println("Expanding fileNames starting with " + wildcardStart
                      + " and ending with " + wildcardEnd);
    public boolean accept(File check) {
        String checkName = check.getName().toLowerCase();
        if (compare == null) {
            return false;
        if (((wildcardEnd == null) || (wildcardEnd.compareTo("") == 0))
            && ((wildcardStart == null) || (wildcardStart.compareTo("") ==0))) {
            return false;
        if (((wildcardStart == null) || (wildcardStart.compareTo("") ==0))
            && (wildcardEnd != null)) {
            if ((wildcardEnd.compareTo(".*") ==0) || (wildcardEnd.compareTo("*") == 0))
                return true;
            if (checkName.endsWith(wildcardEnd))
                return true;
        if (((wildcardEnd == null) || (wildcardEnd.compareTo("") == 0))
            && (wildcardStart != null)) {
            if (checkName.startsWith(wildcardStart))
                return true;
        if ((checkName.startsWith(wildcardStart))
            && (checkName.endsWith(wildcardEnd))) {
            return true;
        return false;

I figured it out based on some of the other posts I found on this Forum. Following is the working code. While this code is not as robust as it needs to be for production, it will at least get you started on extracting from jar files and writing to jarfiles.
import java.io.*;
import java.util.jar.*;
import java.util.zip.*;
//NOTE: You can only copy entries created by the Jar tool
class JarTest {
    JarTest() {
    public boolean copyToJar(File[] fileList, File jarFile) {
        JarEntry je = null;
        File tmpFile = null;
        FileOutputStream fos = null;
        JarOutputStream jos = null;
        BufferedWriter bw = null;
        FileInputStream fis = null;
        JarInputStream jis = null;
        BufferedReader br = null;
        int buf = -1;
        boolean badZipFile = false;
        boolean refreshFromNewFile = false;
        String tmpFileName = jarFile.getAbsolutePath() + ".tmp";
        try {
            tmpFile = new File(tmpFileName);
            fos = new FileOutputStream(tmpFile);
            jos = new JarOutputStream(fos);
            bw = new BufferedWriter(new OutputStreamWriter(jos));
        } catch (IOException ioe) {
            ioe.printStackTrace();
    if(jarFile.exists()) {
            try {
                fis = new FileInputStream(jarFile);
                jis = new JarInputStream(fis);
                br = new BufferedReader(new InputStreamReader(jis));
            } catch (IOException ioe) {
                System.out.println(ioe);
            try {
                while((je = jis.getNextJarEntry()) != null) {
                    refreshFromNewFile = false;
                    for (int i = 0; i < fileList.length; i++) {
                        if (je.getName().compareToIgnoreCase(fileList.getName()) == 0) {
refreshFromNewFile = true;
if (refreshFromNewFile) {
//do nothing so we can add the new file below
} else {
jos.putNextEntry(je);
int index = 0;
buf = -1;
while((buf = br.read()) != -1) {
bw.write(buf);
index++;
System.out.println("Copied entry " + je.getName() + " of " + index + " bytes from " + jarFile.getName());
bw.flush();
jos.closeEntry();
} catch (IOException ioe) {
ioe.printStackTrace();
badZipFile = true;
try {
br.close();
jis.close();
fis.close();
} catch (IOException ioe) {
ioe.printStackTrace();
for (int i = 0; i < fileList.length; i++) {
try {
fis = new FileInputStream(fileList[i]);
br = new BufferedReader(new InputStreamReader(fis));
// write the new entries to the tmpFile
je = new JarEntry(fileList[i].getName());
jos.putNextEntry(je);
int index = 0;
buf = -1;
while((buf = br.read()) != -1) {
bw.write(buf);
index++;
bw.flush();
System.out.println("Added entry " + je.getName() + " of " + index + " bytes.");
jos.closeEntry();
} catch (IOException ioe) {
ioe.printStackTrace();
badZipFile = true;
try {
jos.close();
if (tmpFile != null) {
// rename the tmpFile to jarFile
jarFile.delete();
tmpFile.renameTo(jarFile);
} catch (IOException ioe) {
ioe.printStackTrace();
return true;
public boolean extractFromJar(File[] fileList, File jarFile) {
ZipEntry zen = null;
BufferedReader br = null;
FileOutputStream fos = null;
BufferedWriter bw = null;
try {
for (int i = 0; i < fileList.length; i++) {
JarFile jar = new JarFile(jarFile);
zen = jar.getEntry(fileList[i].getName());
if (zen == null) {
System.out.println("Could not find the file " + fileList[i].getName() + " in the zip file " + jar.getName());
} else {
File parentDirectory = new File(fileList[i].getParent());
parentDirectory.mkdirs();
InputStream in = jar.getInputStream(zen);
br = new BufferedReader(new InputStreamReader(in));
fos = new FileOutputStream(fileList[i]);
bw = new BufferedWriter(new OutputStreamWriter(fos));
int buf = -1;
int index = 0;
while((buf = br.read()) != -1) {
bw.write(buf);
bw.flush();
index++;
System.out.println("Extracted file " + fileList[i] + " of " + index + " bytes from " + jarFile);
br.close();
bw.close();
} catch (IOException ioe) {
System.out.println(ioe);
return false;
return true;
public static void main(String[] argv) {
JarTest jt = new JarTest();
File jarFile = new File("d:\\test\\test.zip");
File[] fileList1 = new File[] {new File("d:\\test\\CustomerRefreshRequest.bat"),
                                        new File("d:\\test\\CustomerUpdateGet.bat"),
                                        new File("d:\\test\\CustomerUpdateRequest.bat"),
                                        new File("d:\\test\\LongmontDefaultClerks.jar"),
                                        new File("d:\\test\\LongmontDefaultCustomers.jar"),
                                        new File("d:\\test\\LongmontDefaultInventory.jar")};
File[] fileList2 = new File[] { new File("d:\\test\\install.bat"),
new File("d:\\test\\LongmontDefaultVendors.jar"),
new File("d:\\test\\CustomerUpdateSend.bat") };
jt.copyToJar(fileList1, jarFile);
jt.copyToJar(fileList2, jarFile);
File[] fileList3 = new File[] {new File("d:\\test\\temp\\CustomerRefreshRequest.bat"),
                                        new File("d:\\test\\temp\\CustomerUpdateGet.bat"),
                                        new File("d:\\test\\temp\\CustomerUpdateRequest.bat"),
                                        new File("d:\\test\\temp\\LongmontDefaultClerks.jar"),
                                        new File("d:\\test\\temp\\LongmontDefaultCustomers.jar"),
                                        new File("d:\\test\\temp\\LongmontDefaultInventory.jar")};
File[] fileList4 = new File[] { new File("d:\\test\\temp\\INSTALL.BAT"),
new File("d:\\test\\temp\\LongmontDefaultVendors.jar"),
new File("d:\\test\\temp\\CustomerUpdateSend.bat") };
jt.extractFromJar(fileList3, jarFile);
jt.extractFromJar(fileList4, jarFile);

Creating a new Handler (java.util.logging API)

Hi,
I'm developping a new Handler (extending the java.util.logging.StreamHandler) and I need to get some initialisation properties from the LogManager. I was taking example from the existing Handlers (SocketHandler, FileHandler...) and wanted to use the LogManager.getLevelProperty, getFilterProperty and so on). Unfortunately these methods are not public.
Is there any good reason for that ? As we are still dealing with a beta version, can't we have them public (same old Open Source problem).
Antonio

I am in a similar situation and agree completely with the above comments. Using the LogManager getProperty() is incredibly cumbersome.
Ciao Ric

Fatal Error: missing resource: java.util.PropertyResourceBundle =Urgent

Hi all,
In the JSP ,if I include the statement <%@ page import="jack.samples.*" %>
it is throwing following error:
This is the Error Message from the Exception:
     Server caught unhandled exception from servlet [BaseServlet]: Server caught
     unhandled exception from servlet [CategoryDisplay]: Server caught unhandled
     exception from servlet [jsp]: Fatal Error: missing resource: java.util.PropertyResourceBundle
     I am using Websphere 3.5 on Windows NT.
     can somebody please help me what is going wrong here ???I am stopped at
     this problem for last 2 days.
Thanks
Jack

Hi,
Finally I was able to resolve after adding this jar file to the classfile
path of the application.
Now,I am trying to access use linkTable.add(new Item(222,"222","333",12.33)) in JSP.
where linkTable is a LinkedList.
It fails giving following error:
This is the Error Message from the Exception:
Server caught unhandled exception from servlet [BaseServlet]: Server caught unhandled exception from servlet : Server caught unhandled exception from servlet [jsp]: Compilation of "softproduct.jsp" failed: d:\ibm\WAServer\temp\default_host\WCSServlets\_jameco_2F_softproduct_2E_jsp_jsp_2.java:824: No constructor matching Item(int, java.lang.String, java.lang.String, double) found in class jack.samples.Item. linkTab.add(new Item(2222,"222","222",22.33)); ^ Note: d:\ibm\WAServer\temp\default_host\WCSServlets\_jameco_2F_softproduct_2E_jsp_jsp_2.java uses or overrides a deprecated API. Recompile with "-deprecation" for details. 1 error, 1 warning
I dont understand why it is failing to add Item object to LinkedList.
can somebody help me in the forum in this regard.
Thanks
Jack

Why not Deprecate java.util.Date and java.util.Calendar

With the introduction of java.time, why did you not flag java.util.Date and java.util.Calendar. These classes have been a bane to every Java developer and should never be used again with the introduction of Java 1.8.

Adding the @Deprecated annotation would only just provide a warning about an old API and recommendation to the developer(s) to no longer use it. Doing so would not break any existing library out there; in fact quite a number of constructors and methods on the Date class have already been flagged deprecated.
The new java.time package is far superior to Date/Calendar.

API Java Util deprecation

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