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Netbeans automatically cloning my jar based packages with their empty 'name equivalents'

I'm new at java programming so i just wanted to try something with ssh understand how it works and so i downloaded a java library which is mentioned in this Stack Overflow answer
. After a lot of failed attempts on importing this library into netbeans. I decided to simply put the files into my src folder. But Netbeans ide duplicating packages in the jar file with their 'name equivalent' empty packages and this prevents me to reach the classes in the packages because the IDE and the Code completion automatically sees the empty packs.I've search the network couldn't find anything about this problem.I 'm ready to share any log files if there are any of them .Here is my screenshot about this situation.
Screenshot Attachment
OS : Linux Mint Rosa
IDE : Netbeans 8.1 Linux version
Edit : I Already looked these topics
How to use .jar files in NetBeans? : At first i've tried this and in this solution netbeans not duplicating any empty packs but when i start to type somethin' like that import sshj.foo.*; Auto Complete can't find anything and also if i try to write the whole path to a specific class which is in an specific pack IDE gave me an error the pack that you're looking for is not exist.Secondly I've tried this
and got the same issue at first try.I can see the packs,classes and other stuff but still can't reach them in a random class which is imported project.
How can I include external jar on my Netbeans project : I've tried this and also this ran perfectly without errors as they said but when i try to reach classes still got the same problem so nothing changed.
How to add a JAR in NetBeans :
In this topic all of the replies explained types of libraries.That's not even related to my problem
How to use classes from .jar files? : I've tried to do explained in this reply also and I've transfered my jar file into a compiled .class extension file and this didn't solve my issue too.

I've just solved that problem with downloading part of the libraries from here.
All libraries need to contain three kind of jars ;
1 . Compiled files containing jar (with extension .class)
2 . Source files containing jar (with extension .java)
3 . Javadoc files containing jar (optional)
Open a project find libraries folder on ide right click and choose Add JAR/Folder specify the directory that contains the compiled files.After importing library hit right click over it and choose edit then specify the source files and javadoc files directories you are ready to roll.

Running .jar File Java 8

I've run .jar files before, but I've encountered a "different" situation, and I'm not sure what to do. I'd appreciate if someone could help me out.
Previously, I programmed with Java 6 and Eclipse Juno exported all my programs to runnable jar files. I'd get a .jar file that I could run by just double clicking on it. The files always looked something like this (note the jar file icon):
Recently, I wrote a program in Java 8 with Eclipse Luna (Release 4.4.0) and exported it to a runnable jar file, and I got something different (note the different file icon):
It no longer runs when I double click it. Instead, my computer uncompresses the jar, as it would a zip file. I tried running it from terminal. I cd'd to the directory and typed
java -jar graph3D.jar
I got the following error message:
Error: Unable to access jarfile graph3D.jar
After uncompressing the jar file, I found a folder named META-INF with the manifest file, MANIFEST.MF in it. It was the only file that seemed to resemble an executable file. Do I have to do something with that?
Could someone explain how I can run the second jar file graph3D.jar? Is it something new with Java 8, or something different about Eclipse Luna, or something else?
(Both programs run fine in Eclipse, by the way)
Thanks for your time and help.
Edit:
Below was the dialog box Eclipse displayed if anyone is interested.
Selecting "Use .jar;.zip" makes the filename "graph3D.jar;.jar;*.zip" .
Selecting "Use .zip" makes the filename "graph3D.jar;*.zip"
Selecting "Cancel" doesn't let you go forward.
You'd have to manually delete the extra file extension.

Somehow when you exported the file, the filters for the file dialog box (*.jar;*.zip) got attached to the filename, which is graph3D.jar;*.jar;*.zip, not graph3D.jar. Java can't find it because it doesn't have the name you supplied. Rename the file and pay close attention next time you export; either you fat-fingered something, or you're triggering a significant bug that needs fixing.

I recommend that you will access the build folder after you've built your project on the IDE under your project folder (in your workspace) and copy both the libraries folder and the .jar and post them wherever you want the program to be "installed", you'll then have an executable jar that should run smoothly without problems, just as I said don't forget the lib folder.

I think there is nothing new in Java 8 related with the running jar, I guess you need to check the the Eclipse export issues, it seems your classes are missing from your second jar file.

modify weka source code in netbeans

i wanna use weka source code (not jar file!)and i download weka-src.jar from this address
http://www.java2s.com/Code/Jar/w/Downloadwekadev379sourcesjar.htm
and i wanna have weka project in netbeanes in windows .i do step by step this site instruction
http://weka.wikispaces.com/Netbeans+6.0+%28weka-src.jar%29
when i extract jar file into src directory in my project,it give me a lot of error
such as:
package java_cup.runtime does not exist
and a lot of other error.
anyone can tell me how can i do that without any error ?? i am working on this problem for a week and i'm so tired.
please help me if you can.

you have to download java-cup.jar file And add this jar to your classpath
if you didn't find java-cup.jar then you can download jflex.jar jflex also contain java-cup classes so you can download jflex.jar from link below
click on this link

jsr305_annotations Folder inside apk file

I've had reports of problems with the installation of the apk.
I tried to extract the apk as a zip file and I found the folder
jsr305_annotations in the root APK
with inside
folder: v0_r47 -> file: V0_r47.gwt.xml
File: Jsr305_annotations.gwt.xml
I would like information about those files and folders and a method to make sure that they are not included in my applications
thanks
Using
Eclipse
Version: 3.8.2
Build id: M20130131-0800
Android Development Toolkit
Version: 22.0.1.v201305230001--685705

I'd seen those files included in an app as a result of including the library GoogleAdMobAdsSdk in a project (as available from here https://developers.google.com/mobile-ads-sdk/)
If you open that JAR file you can see those annotations folders and XML files are present.
If you don't include that library directly, you may be including another JAR which has those files.
I'd suggest checking the JAR files you include in your project (by opening them in a file that can open APK/Zip files) to find which one(s) include the file and look for an alternative library.

The javascript that comes with it looks like it will lock you out of your device and start making phone calls, mail, SMS, etc while it plays audio and shows a video. It also creates a *.css file and calls on varible uri. I didnt inspect every file but from the *.js file it dont look like I would want to run it. I found this in my Downloads folder, file name, "yourdownloadisready.apk", Im a tech. I cant imagine if a novice saw this.

VLCJ: Packaged Jar cant load libvlc library when double-clicked but runs perfectly through console

I have a problem with vlc.I am using Eclipse and have made a small application to play video files using vlcj framework.Inside Eclipse everything works fine but when I make jar executable file through Eclipse and double-clicking it (on Windows 64: Tested only on this platform) nothing happens .Then I'm trying using "cd myjarfilepath" and then "java -jar myjarname.jar" and everything works fine.Why this is happening and how to solve it?
Thanks in advance to stackoverflow's community .
Edit:
In Path Location: C:\Users\user\Documents\31\Latest_Win64\Needed I have the following files:
plugins(directory)
axvlc.dll
axvlc.dll.manifest
libvlc.dll
libvlc.dll.manifest
libvlccore.dll
npvlc.dll
npvlc.dll.manifest
vlc.exe.manifest
In my classpath i have included the following files:
jna-3.5.1.jar
platform-3.5.1.jar
vlcj-2.2.0.jar
vlcj-2.2.0-javadoc.jar
vlcj-2.2.0-sources.jar

This sounds like an issue loading the needed VLCj files. Not only are dlls required but the plugin directory is also required. As the execution location moves around from inside eclipse to back in the file system, the path to these files may be getting set incorrectly.
It sounds like you have it working within eclipse. This would indicate to me that what you have should work. Firstly, I would recommend acquiring the VLC dlls, etc., by providing this as a VM argument such as shown below, rather that setting it in code. Remember to comment out any loading you are doing in your code so that you are relying on the command line argument.
-Djna.library.path={Application Location}/lib
example: -Djna.library.path=C:/myapp/lib
Directory Contents:
lib
-- libblc.dll
-- libvlc5.dll
-- {etc}
/plugins
/3dnow
/access
{etc}
If you are still having issues, add the following argument to put VLCj into debug mode. This can be very helpful to determine where things are failing.
-Dvlcj.log=DEBUG
Hope that helps.