I have created a project within NetBeans with includes a form and a class that serves as a database connection layer. When i try to run this project through the IDE everything launches just fine. The problem occurs when i try to launch the jar file created by the ide on the commmand prompt terminal. nothing happens? it just moves to the next line. i have a manifest file with a class path and main class specified and it looks like so
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.3
Created-By: 1.6.0_22-b04 (Sun Microsystems Inc.)
Class-Path: lib/mysql-connector-java-5.1.13-bin.jar lib/mylib.jar
X-COMMENT: Main-Class will be added automatically by build
Main-Class: eopprototype.EOPPrototype
when i look at what the compiler says is says To run this application from the command line without Ant, try:
java -jar "/h/USERS/local/pagola/NetBeansProjects/EOPPrototype/dist/EOPPrototype.jar"
when i try to type that command it just goes to the second line without anything happening. Not evena ny errors. I am supposed to distribute this jar file to a shared folder and have it run but i cant do it and i dont know whats wrong. I have NOT added any JAVA_HOME path as my jdk 1,6 is isntalled in usr/bin so it should find it there but i have NOT added any classpath (ide shows two runtime and bootable classpaths) somebody please assist me as i am new to the whole java virtual machine environment
I guess you meant the standard outputs, or other things you printed to the command prompt from your java program. To get that printed on the command propmt, you need to run java in debug mode.
Use
java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar myJar.jar
to run java in debug mode and get all standard outputs, exceptions etc. on the command prompt.
Related
I have a problem that I cannot solve, When I run the executable of my program it gives me the following error:
The code executable cannot continue because libgcc_s_seh-1.dll was not found. To fix the problem, try reinstalling the program
I tried to manually copy and paste the file (libgcc_s_seh-1.dll) into the folder where I keep the executable but I get the following error:
The application could not be started correctly (0xc000007b)
Additional information:
I use windows 10 64 bit
I Use mingw81_64
I use version 6.1.2 of Qt
What can I solve the problem?
I guess you double-clicked in exe file that provides after building in release mode :
For Deploy and create Exe output with QT in windows you should follow this way:
put your compiler path in your system path. now you use mingw81_64 you should set it. something like Qt/tools/mingw81_64/bin
copy exe file that provides after building in release mode in one folder and run mingw81_64 cmd (it has separate cmd)
and cd to that folder path
windeployqt app.exe
This command will get all dll needs for your app and your exe will work .
if you use qml
windeployqt --qmldir (the path of its directory ) app.exe
and also see these youtube videos for more info:
https://www.youtube.com/watch?v=LdSTgR0xJco
https://www.youtube.com/watch?v=hCXAgB6y8eA
For specific error of libgcc_s_seh-1.dll was not found, please try to copy libgcc_s_seh-1.dll, libstdc++-6.dll, libwinpthread-1.dll into your compiler path like Qt/tools/mingw81_64/bin.
You should copy libgcc_s_seh-1.dll, libstdc++-6.dll, libwinpthread-1.dll into your exefile path after executing windeployqt.exe with all files are in correct version.
I want to run edumips.jar. Whenever I try to open, Java control panel is opened.
When I execute:
strong text
It is first time to download java and excecute .jar file.
What I want:
Please tell me what I'm doing wrong...
UPDATE: there is now an MSI installer for EduMIPS64 which allows you to install and run the simulator without worrying about installing a JRE and configuring it: https://github.com/EduMIPS64/edumips64/releases/download/v1.2.8/EduMIPS64-1.2.8.msi (version 1.2.8 was released at the time of updating this answer, there might be more recent ones).
You need to make sure the Java runtime is associated with the .jar extension to open it with double-click.
To open it once, try right-clicking on the JAR file select Open With... and find the Java runtime binary (it's "OpenJDK Platform Binary" on my Windows machine).
You may also be able to fix this by re-installing the Java Runtime (JRE): usually installers associate .jar files to the Java binary automatically.
Worst case, if Java is installed and the PATH is set up correctly, you can run it from the command line by using the command java -jar edumips64-1.2.6-standalone.jar.
To open the command line, press Win+x and choose Windows PowerShell. Your JAR might be in the Downloads directory so try java -jar Downloads\edumips64-1.2.6-standalone.jar.
It's been a few days since I've been trying to export a very simple project made in JavaFX but I have a very frustrating problem: To run the jar I need to open cmd navigate to the jdk folder and execute the following code java --module-path %path_to_JavaFX_on_my_pc% --add modules=javafx.controls,javafx.fxml,javafx.graphics -jar %path_to_jar% where I point to the jfx folder on the pc and add the necessary modules to run the jar.
run the jar using java java -jar %path_to_jar% results in the following error: Error: JavaFX runtime components are missing, and are required to run this application
The project is modular, having declared module-info.java with the following code:
module Timer {
requires java.prefs;
requires com.jfoenix;
requires javafx.base;
requires javafx.controls;
requires javafx.fxml;
requires javafx.graphics;
requires javafx.media;
requires javafx.web;
requires javafx.swing;
opens main;
exports main;
}
when exporting the artifact I include all the .jar contained in the javafx, so why should I point to it externally?
The app runs well when I run it through the IDE, I didn't even have to add VM options.
My goal is to create an application that can actually be distributed, without the user needing to have any knowledge beyond the basics to run it, no jre, jdk, jfx, cmd code, etc... just click twice and done.
The question is: How do I generate an executable file that can be opened with 2 clicks like any other application on the pc on *any pc?
finally I got a solution to my problem.
1 ° - It was necessary to solve the problem when generating a java artifact using javaFx in intelliJ: In JDK 13 the IDE threw the following error
Can't build artifact - fx: deploy is not available in this JDK
the easiest solution for that was to return on JDK 9 ond the javaFx was still built in and everything worked fine. Having done that, I was able to generate .jar artifacts that worked without the need to use command line tools.
2 ° -So I needed to generate a native executable for my application: In this topic there is an excellent list of tools that create launchers for java artifacts (Ideal was to convert but there gets a little complicated). What worked best for me was Jsmooth where I was able to set up a launcher that built in my .jar and where I could also attach a copy of the JRE for distribution on computers without Java
It is worth noting that I develop desktop applications just for my use and that of some friends, they do not work with sensitive data and do not require a high level of security and therefore there is no problem using an old version of jdk, in any other case, no recommend this approach.
Thank you all for your help.
I ran into the same problem with JavaFX 11. The way I did it, to be able to generate the jar artifact, I set the Project Settings - Artifacts - Type to JAR rather than JavaFX Application. That enabled me to create a jar in the out directory of my project. Afterwards, I wrote a batch file that created a custom jre for my app (as small as ~40 MB for a small app), including JavaFX. I called that bat file create.bat and placed that bat file in the same folder as my jar artifact.
Now, provided
my jar artifact is called app.jar,
path to JDK is D:\jdks\jdk11,
path to JFX mods is D:\jdks\jfx11\jmods,
module name is com.epsilon, and
path to Main class is com.epsilon.Main,
below is the contents of the bat file to create a custom JRE, including JavaFX. It created a custom JRE in the folder dist, the launch file is in the dist\bin directory called run.bat.
rem This sets the variable DIR to the current directory with the jar artifact
set DIR=%~dp0
rem This creates a temporary mod file
D:\jdks\jdk11\bin\jmod create --class-path %DIR%app.jar %DIR%temp.mod
rem This creates distributable JRE
D:\jdks\jdk11\bin\jlink ^
--compress=2 ^
--strip-debug ^
--no-man-pages ^
--launcher run=com.epsilon/com.epsilon.Main ^
--module-path D:\jdks\jdk11\jmods;D:\jdks\jfx11\jmods;%DIR% ^
--add-modules com.epsilon ^
--output %DIR%dist
rem This command deletes the temporary mod file
del %DIR%temp.mod
rem You can create a shortcut to your app above the "dist" folder and enter the below line to the shortcut's target property
rem %windir%\system32\cmd.exe /c start "" "%CD%\dist\bin\javaw.exe" -m com.epsilon/com.epsilon.Main
So, this has enabled me to create a working distributable without downgrading Java.
I am creating a simple Alljoyn java application to send and respond to a few signals. When I run the code in Eclipse (on Win7) it runs fine. However when I export it as a runnable jar file and attempt to run that I get the following error
Exception in thread "main" java.lang.UnsatisfiedLinkError: no alljoyn_java in java.library.path
The exception is triggered upon calling executing the following code:
static { System.loadLibrary("alljoyn_java");}
I have configured the build path of the project to use the external jar alljoyn_java and set the Native library location of that library to the parent directory of the alljoyn_java.dll file.
You have to place the files alljoyn_java.dll, alljoyn_java.lib and alljoyn_java.exp in the same directory of the jar file.
Then, run the jar with the following command:
java -jar -Djava.library.path=. [your-jar-file.jar]
The JVM looks for native libraries at path specified in java.library.path (as mentioned in answer above) and/or path specified in environment variable LD_LIBRARY_PATH. Either use the command mentioned in comment above or add path of directory containing your library to environment variable LD_LIBRARY_PATH.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<<path_of_dir_containing_lib>>
java -jar <<your_jar_file>>
So what I ended up doing is downloading jarsplice and using that to add the native libraries after I exported the project from Eclipse as a .jar
I have installed Tomcat 5.5 in windows vista home basic. I have set classpath to
"C:\program files\apache software foundation\tomcat 5.5\common\lib\servlet-api.jar".
now there are two problems.
1. I could not compile my servlets. It says package javax.servlet.* dosenot exist.
2. I could not connect with local host in chrome nor in explorer.
these errors are appearing inspite of server instance running.
Classpath to java sdk and tomcat are different. is it the matter of concern.
Please help.
I have invested considerable amount of time figuring out the problem.
thanx in advance.
I could not compile my servlets. It says package javax.servlet.* dosenot exist.
It means that the classpath for javac is not been correctly specified. It should go like so:
javac -cp .;"/path with spaces/to/servlet-api.jar" com/example/YourServlet.class
Note that you need to surround a path with spaces by doublequotes.
I could not connect with local host in chrome nor in explorer. These errors are appearing inspite of server instance running.
Then you used the wrong domain/port. When running Tomcat at the local machine, the domain should at least be localhost. The actual port can be determined in Tomcat/conf/server.xml file. It defaults to 8080, but can be changed during the Windows setup wizard. The final URL should look like http://localhost:8080. If you use port 80 which is the default HTTP port, then the :80 part can be omitted from the URL.
Classpath to java sdk and tomcat are different.
The %CLASSPATH% environment variable is worthless. Use -cp argument. If you want to avoid long typing/remembering everytime, consider using a .bat file with the command, or a build tool like Ant, or an IDE like Eclipse.
The %JAVA_HOME% environment variable is however important. Tomcat needs to know it in order to have access to the toolset to compile JSP files. The %JAVA_HOME% should point to the installation directory of the JDK.
I have set classpath to "C:\program
files\apache software
foundation\tomcat
5.5\common\lib\servlet-api.jar"
If this means CLASSPATH environment variable, you're learning a valuable lesson: it's worthless. javac.exe and java.exe ignore it; so do all Java EE app servers like Tomcat; so do all IDEs like IntelliJ.
You'll have to add servlet-api.jar to your CLASSPATH using javac.exe -cp every time you compile in a command shell, or add it to your IDE project CLASSPATH, or set it up in Ant.
If you can't connect to localhost using Chrome or Explorer, it probably means that you haven't packaged or deployed your app properly. Make sure you create a valid WAR file and put it in the Tomcat 5.x /webapps directory to deploy.