Where do these class files go?

I downloaded a library of code that I'd like to use in my program. It came packaged as some .java files and some .class files. Many of the .class files don't have corresponding .java files. I assume this is because they did not want us to see the source code. Can I still use these class files? I put them in the bin folder of my project (I'm using eclipse) but the code still can't recognize the objects from that class.
I found this: http://stackoverflow.com/questions/661110/how-do-i-include-class-files-in-my-project-in-eclipse-java
and I think I did correctly what they said to do. I moved the files to a new folder called lib, and then added lib to the buildpath as a class folder, but Eclipse can't find it.
Edited by: JFactor2004 on May 19, 2010 11:06 AM

Need to be under the folder in the package (i.e. com.org.blah....)
You can also decompile any class file to see what are in there
use JAD ecplise plug-in or JD (for java >5)

Similar Messages

8.1.7 LoadJava. Where do the class files get Stored

I am using an 8.1.7 Database. I have class files in my database that were loaded using loadjava. I want to extract these class files to do a binary comparison. Does anyone know where a users schema the actual class files are stored. In 9i i believe that they are stored in CREATE$JAVA$LOB$TABLE but they aren't stored there in my 8.1.7 database. Where should i be looking in an 8.1.7 database???
Cheers
Paul

found a solution. In case it is of interest to anyone, using enterprise manager from a 9i client, connected to my 8.1.7 database, and under, schema--> user-->source types--> java classes. for each class, select the class and there is an option to export the class on the RHS. Selecting this, can export class files to hard drive.

Problem creating package structure and where is my .class file??????

Working on Tomcat I have my folder structure like this...
webapps
->app_root
->WEB-INF
->classes
->src
-> .java files
->META_INF
In the command prompt i compile using this
c:\Program Files\Apache Tomcat 4.0\webapps\Murthy\WEB-INF\classes>javac -d src\*.java
and in my java files I have the package structure mentioned as
package com.acme;
after compiling i expected this to happen for me.
webapps
->app_root
->WEB-INF
->classes (in WEB-INF)
->com (in classes)
->acme (in com)
-> .class files (in acme)
->src (in WEB-INF)
-> .java files(In src)
->META_INF
The funiest part for me started he when i compiled the file
c:\Program Files\Apache Tomcat 4.0\webapps\Murthy\WEB-INF\classes>javac -d src\one.java
It compiled successfully without giving me any error but no package structure was created and THERE IS NO one.class file anywhere in my system.....Then how did it compile my file and where is the .class file.
I think am worng somewhere but unable to locate it.
Can somebody pull me out of thiss stuf??? Need to do it fast.
Thanx.

c:\Program Files\Apache Tomcat 4.0\webapps\Murthy\WEB-INF\classes>javac -d src\*.java
The command you posted does not have a source file specification. You are telling the compiler to put the .class files in src\*.java but you are not specifying any .java files. It looks like your command should be javac -d . src\*.java

Where to put class files

hi,
i use Tomcat v4.0.5, my jsp files import some classes. i put these classes to /classes folder under /jakarta-tomcat-4.0.5 base directory. but when i make some changes to these classes, i have to restart the Tomcat. i think there must be some other folders to put these class files and there wont be need any more to restart Tomcat.

Hi
It is necessary to restart your Tomcat if you are modifying class files, because tomcat will build a cache for the previously compiled classes and objects. As you are under development this is of no harm.
And one more thing place any classes in the WEB-INF/classes directory of your tomcat application.
Thanks
Swaraj

Where is this class file located??

In developer studio, I am getting an error when building my java project that says "The project was not built since its classpath is incomplete. Cannot find the class file for com.sapportals.wcm.util.uri.RID. Fix the classpath then try rebuilding this project."
Here is the import statement: import com.sapportals.wcm.util.uri.RID;
I have not been able to find the jar file needed to fix this anywhere. Does anybody know the name of the file required for this?
Thanks for any help!

first of all add a web dynpro reference (dc->properties)
PORTAL:sap.com/com.sap.km.application
second, check these links
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/5a/2e2f4234135433e10000000a155106/frameset.htm">external library dc</a>
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/194bdc4f-0901-0010-82ba-bf73af5d5f75">external libraries</a>
you may have to create a different dc to contain your jars.

Unresolve classes - significance? Where are these classes?

Hello,
Does it mean I cant use any of these methods? as they are listed
as the status when I loaded xmlparserv2.jar via loadjava. Where
are these stored if not on xmlparserv2.jar? I am able to run
xsutest.sql and it seems to execute okay. However, I still can
not run the paginating samples, where one scroll or sample no 6
the one that uses oracle.xml.sql.OracleXMLNoRowsException.
ORA-29521: referenced name oracle/xml/sql/dml/OracleXMLSave could
not be found
ORA-29521: referenced name oracle/xml/sql/OracleXMLSQLException
could not be found
ORA-29521: referenced name oracle/xml/sql/query/OracleXMLQuery
could not befound
ORA-29521: referenced name
oracle/xml/sql/OracleXMLSQLNoRowsException could not be found
ORA-29521: referenced name oracle/xml/sql/query/OracleXMLQuery
could not befound
ORA-29521: referenced name oracle/xml/sql/dml/OracleXMLSave could
not be found
ORA-29521: referenced name oracle/xml/sql/OracleXMLSQLException
could not be found
errors : oracle/xml/xsql/actions/XSQLInsertRequestHandler
errors : oracle/xml/xsql/actions/XSQLQueryHandler
errors : oracle/xml/xsql/actions/XSQLRefCursorFunctionHandler
errors : oracle/xml/xsql/actions/XSQLInsertParameterHandler
loadjava: 7 errors

I have the oracle 8.1.7 on SuSE Linux. Okay, I didnt recall
which loadjava capture I have done those, but the point of my
question is still, does it mean those methods that could not be
found are not available for to call from java? Also, I noticed
that a lot of the classes are already resolved, I assume it is
loaded the first time I loadjava them in?
Which version of database are you using? Also, please see my
comments below.
Hello,
Does it mean I cant use any of these methods? as they are listed
as the status when I loaded xmlparserv2.jar via loadjava. Where
are these stored if not on xmlparserv2.jar? I am able to run
xsutest.sql and it seems to execute okay. However, I still can
not run the paginating samples, where one scroll or sample no 6
the one that uses oracle.xml.sql.OracleXMLNoRowsException.
ORA-29521: referenced name oracle/xml/sql/dml/OracleXMLSave could
not be found
ORA-29521: referenced name oracle/xml/sql/OracleXMLSQLException
could not be found
ORA-29521: referenced name oracle/xml/sql/query/OracleXMLQuery
could not befound
ORA-29521: referenced name
oracle/xml/sql/OracleXMLSQLNoRowsException could not be found
ORA-29521: referenced name oracle/xml/sql/query/OracleXMLQuery
could not befound
ORA-29521: referenced name oracle/xml/sql/dml/OracleXMLSave could
not be found
ORA-29521: referenced name oracle/xml/sql/OracleXMLSQLException
could not be found These classed are in xsu12.jar(or xsu111.jar)
errors : oracle/xml/xsql/actions/XSQLInsertRequestHandler
errors : oracle/xml/xsql/actions/XSQLQueryHandler
errors :
oracle/xml/xsql/actions/XSQLRefCursorFunctionHandler
errors : oracle/xml/xsql/actions/XSQLInsertParameterHandler
loadjava: 7 errors These classes are in oraclexsql.jar.

Where to put .class file of a servlet to run it on Tomcat 4.0

where do i put my .class file of my servlet or maybe the .java one too in order to run it using Tomcat 4.0
thanks in advance

i got it by accident a while ago.. hehe
thank you for trying to help thou :)
ivo

Where are these movie files at?

For some reason I had 60 gigs of movies saved onto my computer. I use my GOPRO alot and make videos for youtube with it. So I have deleted everything I can find under the files .mov, .mpeg, .mp4...etc.
But there is still 40 gigs of movies on my computer!!!! (really forty four.63 gigs)
So where would my computer be hiding these?
I need help, I need more space!
Any response is a good one!

Not in trash,
and my time machine is on an external and its not even plugged in so not there..
not sure about a backup, or where it would be...only would be if it atomaticaly backed it up somewhere.
thanks its all a good start!

Where did these *.tmp files come from?

Hi all,
When i run my web application under tomcat, i noticed that there are handards of temp files with name like "scb_14064.tmp", "srt_14077.tmp" are generated under my %tomcat_home%/temp folder. I am very sure that in did not use any temp files in my program, where on earth does these from come from and how to prevent them?

I will try to put keywords so people find this thread.
Thanks to liaoyunhe we found "fast" the origin of our problem.
The problem is itself related to the usage of Microsoft's JDBC driver for SQL 2000 service pack 3 (�why to use M$-$QL on java?).
We currently use the same code with Postgres and also with JTDS drivers and there is no such problem.
What liaoyunhe says is absolutely true: you have to close ALL resultsets and ALL statements so there is no problem with the srt scb files.
We were stressing the application and after a while we got an "Too many files open" exception and we were able to count 39.000 srt+scb files with lsof.
After carefully reviewing our code, we found that we were not closing one resultset on a connection we re-use and the tmps were created and not released.
Thanks again liaoyunhe.
Thanks Micro$oft for giving us some extra work :-)

Where do these Acer files belong in Windows XP ?

I could not find an appropriate forum for Monitors, so chose this one as it relates to Windows XP.I downloaded driver for Acer Monitor AL1716. When I unzipped the zip file, I received two files:Does anyone know how to install these in Windows XP so the Monitor can be recognized ?The Monitor appears under "Other Devices" and cannot be changed (colors or resolution) and update driverdoesn't work, scan for HW changes doesn't work. AL1716.ICM    (ICC PROFILE)      - This file cannot be opened when clicked on)AL1716.inf     (Setup Information)    Actual content follows:
; AL1716.INF
; This is Setup information file for monitors
; Copyright (c) 2005, Acer
[Version]
signature="$CHICAGO$"
Class=Monitor
ClassGuid={4D36E96E-E325-11CE-BFC1-08002BE10318}
Provider=%Acer%
CatalogFile=AL1716.cat
DriverVer=05/19/2005,1.00
[ControlFlags]
ExcludeFromSelect.nt = Monitor\ACR06B4
;[ClassInstall32]
;AddReg=ClassAddReg32
;[ClassAddReg32]
;HKR,,,,%MonitorClassName%
;HKR,,Icon,,"-1"
;HKR,,NoInstallClass,,1
[DestinationDirs]
DefaultDestDir = 11
AL1716.CopyFiles = 23
[SourceDisksNames]
1=%Disk1%,,,
[SourceDisksFiles]
AL1716.icm=1
[Manufacturer]
%Acer%=Acer
[Acer]
%AL1716%=AL1716.Install, Monitor\ACR06B4
[AL1716.Install]
DelReg=DEL_CURRENT_REG
AddReg=AL1716.AddReg, 1280, DPMS
CopyFiles=AL1716.CopyFiles
[DEL_CURRENT_REG]
HKR,MODES
HKR,,MaxResolution
HKR,,DPMS
HKR,,ICMProfile
[1280]
HKR,,MaxResolution,,"1280,1024"
[DPMS]
HKR,,DPMS,,1
[AL1716.AddReg]
HKR,"MODES\1280,1024",Mode1,,"30.0-82.0,50.0-75.0,+,+"
HKR,,ICMProfile,0,"AL1716.icm"
[AL1716.CopyFiles]
AL1716.icm
[Strings]
;MonitorClassName="Monitor"
Acer="Acer"
Disk1="Acer LCD Utility Disk"
AL1716="Acer AL1716"

http://acer--uk.custhelp.com/app/answers/detail/a_id/14354/~/manual-installation-of-a-downloaded-driver-in-windows-xp

Where are these java files in j2sdk1.4.0?

hi everyone,
i was reverse engineering the component.java and container.java classes in rational rose2000
then i got these errors:
Error resolving qualified name AppContext in Component.java
Error resolving qualified name DebugHelper in Container.java
i then checked the src.jar for those files but to no avail..
was it stripped out frm the jdk?
thanks
johan

It's not that, it's just I've seen someone from Sun flame someone for reproducing the Sun source code without permission...they might take a similar stance on decompiling their code, and there again maybe not!
You don't want the Sun lawyers breathing down your neck!!!

Where's the class files? Why the "installer" nonsense?

Why do I have to download a big fat Windows installer executable just to get the 1.4.2 classes? I don't have admin access to my office PC and simply want to import the newer classes into my JBuilder projects. Why all the hoops and unwanted extras?

Answering this in the (more widely read) Java Programming forum.

Where did these .dat files come from?

A couple days ago, while in Ghana, I was suddenly unable to send Microsoft file attachments; the files show up at my recipients as .dat files. How can I fix this?

I will try to put keywords so people find this thread.
Thanks to liaoyunhe we found "fast" the origin of our problem.
The problem is itself related to the usage of Microsoft's JDBC driver for SQL 2000 service pack 3 (�why to use M$-$QL on java?).
We currently use the same code with Postgres and also with JTDS drivers and there is no such problem.
What liaoyunhe says is absolutely true: you have to close ALL resultsets and ALL statements so there is no problem with the srt scb files.
We were stressing the application and after a while we got an "Too many files open" exception and we were able to count 39.000 srt+scb files with lsof.
After carefully reviewing our code, we found that we were not closing one resultset on a connection we re-use and the tmps were created and not released.
Thanks again liaoyunhe.
Thanks Micro$oft for giving us some extra work :-)

How do I make a batch file if the .class file uses a foreign package?

I am trying to make an MS-DOS batch file using the bytecode file from the Java source file, called AddFields.java. This program uses the package BreezySwing; which is not standard with the JDK. I had to download it seperately. I will come back to this batch file later.
But first, in order to prove the concept, I created a Java file called Soap.java in JCreator. It is a very simple GUI program that uses the javax.swing package; which does come with the JDK. The JDK is currently stored in the following directory: C:\Program Files\Java\jdk1.6.0_07. I have the PATH environment variable set to the 'bin' folder of the JDK. I believe that it is important that this variable stay this way because C:\Program Files\Java\jdk1.6.0_07\bin is where the file 'java.exe' and 'javac.exe' are stored. Here is my batch file so far for Soap:
@echo off
cd \acorn
set path=C:\Program Files\Java\jdk1.6.0_07\bin
set classpath=.
java Soap
pause
Before I ran this file, I compiled Soap.java in my IDE and then ran it successfully. Then I moved the .class file to the directory C:\acorn. I put NOTHING ELSE in this folder. then I told the computer where to find the file 'java.exe' which I know is needed for execution of the .class file. I put the above text in Notepad and then saved it as Soap.bat onto my desktop. When I double click on it, the command prompt comes up in a little green box for a few seconds, and then the GUI opens and says "It Works!". Now that I know the concept of batch files, I tried creating another one that used the BreezySwing package.
After I installed my JDK, I installed BreezySwing and TerminalIO which are two foreign packages that make building code much easier. I downloaded the .zip file from Lambert and Osborne called BreezySwingAndTerminalIO.zip. I extracted the files to the 'bin' folder of my JDK. Once I did this, and set the PATH environment variable to the 'bin' folder of my JDK, all BreezySwing and TerminalIO programs that I made worked. Now I wanted to make a batch file from the program AddFields.java. It is a GUI program that imports two packages, the traditional GUI javax.swing package and the foreign package BreezySwing. The user enters two numbers in two DoubleField objects and then selects one of four buttons; one for each arithmetic operation (add, subtract, multiply, or divide). Then the program displays the solution in a third DoubleField object. This program both compiles and runs successfully in JCreator. So, next I moved the .class file from the MyProjects folder that JCreator uses to C:\acorn. I put nothing else in this folder. The file Soap.class was still in there, but I did not think it would matter. Then I created the batch file:
@echo off
cd \acorn
set path=C:\Program Files\Java\jdk1.6.0_07\bin
set classpath=.
java AddFields
pause
As you can see, it is exactly the same as the one for Soap. I made this file in Notepad and called it AddFields.bat. Upon double clicking on the file, I got this error message from command prompt:
Exception in thread "main" java.lang.NoClassDefFoundError: BreezySwing/GBFrame
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
4)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
Caused by: java.lang.ClassNotFoundException: BreezySwing.GBFrame
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
... 12 more
Press any key to continue . . .
I know that most of this makes no sense; but that it only means that it cannot find the class BreezySwing or GBFrame (which AddFields extends). Notice, however that it does not give an error for javax.swing. If I change the "set path..." command to anything other than the 'bin' folder of my JDK, I get this error:
'java' is not recognized as an internal or external command,
operable program or batch file.
Press any key to continue . . .
I know this means that the computer cannot find the file 'java.exe' which I believe holds all of the java.x.y.z style packages (native packages); but not BreezySwing or any other foreign packages. Remember, I do not get this error for any of the native Java packages. I decided to compare the java.x.y.z packages with BreezySwing:
I see that all of the native packages are not actually visible in the JDK's bin folder. I think that they are all stored in one of the .exe files in there because there are no .class files in the JDK's bin folder.
However, BreezySwing is different, there is no such file called "BreezySwing.exe"; there are just about 20 .class files all with names like "GBFrame.class", and "GBActionListener.class". As a last effort, I moved all of these .class files directly into the bin folder (they were originally in a seperate folder called BreezySwingAndTerminalIO). This did nothing; even with all of the files in the same folder as java.exe.
So my question is: What do I need to do to get the BreezySwing package recognized on my computer? Is there possibly a download for a file called "BreezySwing.exe" somewhere that would be similar to "java.exe" and contain all of the BreezySwing packages?

There is a lot of detail in your posts. I won't properly quote everything you put (too laborious). Instead I'll just put your words inside quotes (").
"..there are some things about the interface that I do not like."
Like +what?+ This is not a help desk, and I would appreciate you participating in this discussion by providing details of what it is about the 'interface' of webstart that you 'do not like'. They are probably misunderstandings on your part.
"Some of the .jar files I made were so dangerously corrupt, that I had to restart my computer before I could delete them."
Corrupt?! I have never once had the Java tools produce a corrupt Jar. OTOH, the 'cannot delete' problem might relate to the JRE gaining a file lock on the archive at run-time. If the file lock persisted after ending the app., it suggests that the JRE was not properly shut down. This is a bug in the code and should be fixed. Deploying as .class files will only 'hide' the problem (from casual inspection - though the Task Manager should show the orphaned 'java' process).
"I then turned to batch files for their simple structure and portability (I managed to successfully transport a java.util containing batch file from my computer to another). This was what I did:
- I created a folder called Task
- Then I copied three things into this folder: 1. The file "java.exe" from my JDK. 2. The program's .class file (Count.class). and 3. The original batch file.
- Then I moved the folder from a removable disk to the second computer's C drive (C:\Task).
- Last, I changed the code in the batch file...:"
That is the +funniest+ thing I've heard on the forums in the last 72 hours. You say that is easy?! Some points.
- editing batch files is not scalable to 100+ machines, let alone 10000+.
- The fact that Java worked on the target machine was because it was +already installed.+ Dragging the 'java.exe' onto a Windows PC which has no Java will not magically make it 'Java enabled'.
And speaking of Java on the client machine. Webstart has in-built mechanisms to ensure that the end user has the minimum required Java version to run the app. - we can also use the [deployJava.js|http://java.sun.com/javase/6/docs/technotes/guides/jweb/deployment_advice.html#deplToolkit] on the original web page, to check for minimum Java before it puts the link to download/install the app. - if the user does not have the required Java, the script should guide them through installing it.
Those nice features in deployJava.js are available to applets and apps. launched using webstart, but they are not available for (plain) Jar's or loose class files. So if 'ensuring the user has Java' is one of the requirements for your launch, you are barking up the wrong tree by deploying loose class files.
Note also that if you abandon webstart, but have your app. set up to work from a Jar, the installation process would be similar to above (though it would not need a .bat file, or editing it). This basic strategy is one way that I provide [Appleteer (as a downloadable ZIP archive)|http://pscode.org/appleteer/#download]. Though I side-step your part 1 by putting the stuff into a Jar with the path Appleteer/ - when the user expands the ZIP, the parts of the app. are already in the Appleteer directory.
Appleteer is also provided as a webstart launched application (and as an applet). Either of those are 'easier' to use than the downloadable ZIP, but I thought I would provide it in case the end user wants to save it to disk and transport the app. to a machine with no internet connection, but with Java (why they would be testing applets on a PC with no internet connection, I am not sure - but the option is there).
"I know that .jar and .exe files are out because I always get errors and I do not like their interfaces. "
What on earth are you talking about? Once the app. is on-screen, the end user would not be able to distinguish between
1) A Jar launched using a manifest.
2) A Jar launched using webstart.
3) Loose class files.
Your fixation on .bat files sounds much like the adage that 'If the only tool you have is a hammer, every job starts to look like a nail'.
Get over them, will you? +Using .bat files is not a practical way to provide a Java app. to the end user+ (and launching an app. from a .bat looks quite crappy and 'second hand' to +this+ user).
Edit 1:
The instructions for running Appleteer as a Jar are further up the page, in the [Running Appleteer: Application|http://pscode.org/appleteer/#application] section.
Edited by: AndrewThompson64 on May 19, 2009 12:06 PM

Placing class files for servlets in j2ee

i am new to java servlets. i recently installed j2ee v1.4 sdk. i have gotten my first file that imports packages to compile. i now need a path to place .class files and .jar files. everyone says web-inf/classes and web/lib. due to the directory structure paths are so long. can someone give me the right path in j2ee v1.4 (C:\Sun\Appserver) to place these .class files and .jar files. if there is anything else i need to do before i can run a servlet, please inform me. i just want to run this silly helloWorld servlet. any suggestions would be greatly appreciated.

Hi rickjamesb_tch,
What you have heard is correct - you need to place your class files in the WEB-INF's classes directory (or jar files in the lib directory).
To give you a little background, J2EE servers use custom ClassLoaders (a set of Java Classes that actually load the class into the JVM). The top-level class loaders has classes that are accessible through the JVM (and are usually picked up from the classpath).
The other class loaders load classes that are only accessible within a particular web (or enterprise) application. These classloaders pick classes from the WEB-INF directory. These classloaders also have the capability of dynamically re-loading classes (eg when you change your .jsp file). Finally, the classes loaded are only visible within the web-application so that they do not pollute the global namespace.
Hope that helps.
Of course, the J2EE specification goes into a lot of depth about class loading, but unless you are designing an application server, you need not understand those details and specifics - just understanding where to place your classes is enough.

Where do these class files go?

Similar Messages

Maybe you are looking for