Develop Reference

Update downloader with silent Version check -> Error opening media file

We use the install4j "Update downloader with silent Version check" to periodically update our application installer.
With the introduction of the "Update downloader with silent Version check", we have noticed two problems from the Users.
Error opening media file as can be seen in the screenshot. The Media file is the file that is downloaded in the 1st Step of the updater. Screenshot below
The error log file mentions
[0:918] extracting files
[0:932] Included files: 16
[3:537] ERROR: Could not open FFFFFFFFFFFFFFFF 32 C:\Users\ttttttttt\Downloads\xxxxxxxxxx_7_xxxx_yy_zz_64Bit.exe
[128:104] emptying C:\Users\ttttttttt\AppData\Local\Temp\e4j8A6C.tmp_dir1662356615
The Users have not opened the downloaded file. Normally clickin on OK and a retry generally works.
The second problem some users are facing
[![enter image description here][2]][2]
The 2nd error mentions that the bgupdater.exe is already running. Even here, clicking on "Wiederholen" generally works and the update proceeds.
What we do not understand is that why these errors arise. A retry proceeds without errors in all cases normally.
The application uses install4j version 8 and java 1.8
[2]: https://i.stack.imgur.com/jVl3I.png

The first problem looks like anti-virus software problem where the anti-virus software detects a .exe file that is extracted to the %TEMP% directory and immediately quarantines it.
For the second problem, please locate the log file of the running bgupdater process which is located in the %TEMP% directory. Either you start the bgupdater process too frequently or it is hanging somewhere, you would need to find that out. To install a new version, all executables of the installation must be closed.

When trying to build "./gradlew build" but it says build failed

I want to install COM port to connect my "Extended" controller (stabilization solution) but the software when plugged in, doesn't show any COM 3 ports. Found this solution https://github.com/NeuronRobotics/nrjavaserial
My steps: using the command git clone, after it is downloaded, I changed the directory to the folder it created.
$ cd nrjavaserial
After that, I tried to use this command.
$./gradlew build But it failed. Leaving this messagge in terminal :
What went wrong:
Could not initialize class org.codehaus.groovy.runtime.InvokerHelper
Exception java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.reflection.ReflectionCache [in thread "Daemon worker"]
Any ideas? My guess is that java is not installed correctly or something is missing. Or support for this is not there.. Thank you in advance.
Using JAVA JDK jdk-18.0.2.1.jdk
M1 Macbook Air.

Could not find ApacheJmeter_core.jar

Getting the below response while running jmeter.server Batch file:
Could not find ApacheJmeter_core.jar ...
what to do now? I am using Java version-14

Could not find ApacheJmeter_core.jar ... meaning you haven't started Jmeter master.
But above error is different, in this case Jmeter slave cannot find rmi keystore file at bin folder thus throwing file not found exception for rmi_keystore.jks.
You have to generate rmi_keystore.jks by running create-rmi-keystore.bat for windows (for mac you have to run create-rmi-keystore.sh) then once .jks file is generated then copy it in bin folder of each Jmeter slave.
For more details, you can refer link: https://jmeter.apache.org/usermanual/remote-test.html#setup_ssl

Minecraft Custom Launcher 1.7.10 no lwggl in java.library.path

I'm trying to create my custom C# minecraft launcher but I have this error.
I created a launcher.bat file first in order to solve this problem quicker.
I have this code to start minecraft:
java
-Djava.library.path=C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\
-cp
C:\Users\Davide\AppData\Roaming\.minecraft\versions\1.7.10\1.7.10.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.16\twitch-platform-5.16-natives-windows-64.jar;
C:\Users\Davide\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar;
net.minecraft.client.main.Main
--username MYUSERNAME
--accessToken MYACCESSTOKEN
--version 1.7.10
--gameDir C:\Users\Davide\AppData\Roaming\.minecraft
--assetsDir C:\Users\Davide\AppData\Roaming\.minecraft\assets
--userProperties {}
--uuid MYUUID
But when i start it says Exception in thread "main" java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path.
I found on the internet that's a problem of this line
-Djava.library.path=C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\
But I double checked the path is correct.
Thank you in advance.
EDIT
I solved this problem easily taking out this from the arguments:
-Djava.library.path=C:\Users\Davide\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\
And putting al the DLL's in the local folder, i can't still access them with the full path though

Ok i found the answer. I had to use the local path and not the absolute one

using matlabcontrol API to call to call matlab function from Java within Netbeans

I have been trying to edit the the following matlabcontrol code but still there is an error when I run it. Please friends help me out!
package matcontro;
import matlabcontrol.*;
public class HelloWorld
{
public static void main(String[] args) throws MatlabConnectionException, MatlabInvocationException
{
// create proxy
MatlabProxyFactoryOptions options = new MatlabProxyFactoryOptions.Builder()
.setUsePreviouslyControlledSession(true)
.build();
MatlabProxyFactory factory = new MatlabProxyFactory(options);
MatlabProxy proxy = factory.getProxy();
// call builtin function
proxy.eval("disp('hello world')");
// call user-defined function (must be on the path)
proxy.eval("addpath('C:\\ Users\\HASENDE\\My Documents\\MATLAB')");
proxy.feval("myfunc");
proxy.eval("rmpath('C:\\ Users\\HASENDE\\My Documents\\MATLAB')");
// close connection
proxy.disconnect();
}
}
The error that I get is below;
run:
Exception in thread "main" matlabcontrol.MatlabConnectionException:
Could not launch MATLAB. Command: [matlab, -r, javaaddpath
'C:\Users\HASENDE\Documents\NetBeansProjects\Java Classpath
Libraries\matlabcontrol-4.0.0.jar';
matlabcontrol.MatlabClassLoaderHelper.configureClassLoading();
javarmpath 'C:\Users\HASENDE\Documents\NetBeansProjects\Java Classpath
Libraries\matlabcontrol-4.0.0.jar';
matlabcontrol.MatlabConnector.connectFromMatlab('PROXY_RECEIVER_01caa56d-9ed7-4e39-a45b-345051024d49',
2100);]
at
matlabcontrol.RemoteMatlabProxyFactory.createProcess(RemoteMatlabProxyFactory.java:305)
at
matlabcontrol.RemoteMatlabProxyFactory.requestProxy(RemoteMatlabProxyFactory.java:116)
at
matlabcontrol.RemoteMatlabProxyFactory.getProxy(RemoteMatlabProxyFactory.java:134)
at matlabcontrol.MatlabProxyFactory.getProxy(MatlabProxyFactory.java:81)
at matcontro.HelloWorld.main(HelloWorld.java:21)
Caused by: java.io.IOException: Cannot run program "matlab": CreateProcess error=2, The system cannot find the file specified at
java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) at
matlabcontrol.RemoteMatlabProxyFactory.createProcess(RemoteMatlabProxyFactory.java:292)
... 4 more
Caused by: java.io.IOException: CreateProcess error=2, The system
cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:188)
at java.lang.ProcessImpl.start(ProcessImpl.java:132)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1021) ... 5 more
Java Result: 1
BUILD SUCCESSFUL (total time: 4 seconds)

The issue is that matlabcontrol on Windows and Linux expects 'matlab' to be understood due to the MATLAB directory being part of your PATH environment variable. This exception is indicating that is not the case. That's fine, you just need to explicitly set the location of where your MATLAB executable is. From the javadoc for setMatlabLocation(...):
Sets the location of the MATLAB executable or script that will launch MATLAB. If the value set cannot be successfully used to launch MATLAB, an exception will be thrown when attempting to create a proxy.
The absolute path to the MATLAB executable can be determined by running MATLAB. On OS X or Linux, evaluate [matlabroot '/bin/matlab'] in the Command Window. On Windows, evaluate [matlabroot '/bin/matlab.exe'] in the Command Window. The location provided does not have to be an absolute path so long as the operating system can resolve the path.
Windows
Locations relative to the following will be understood:
The current working directory
The Windows directory only (no subdirectories are searched)
The Windows\System32 directory
Directories listed in the PATH environment variable
App Paths defined in the registry with key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths
By default on Windows, MATLAB places an App Path entry in the registry so that matlab can be used to launch MATLAB. If this property is not set, this App Path entry will be used.
OS X
Locations relative to the following will be understood:
The current working directory
Directories listed in the PATH environment variable
On OS X, MATLAB is installed in /Applications/ as an application bundle. If this property is not set, the executable inside of the application bundle will be used.
Linux
Locations relative to the following will be understood:
The current working directory
Directories listed in the PATH environment variable
During the installation process on Linux, MATLAB can create a symbolic link named matlab that can be used to launch MATLAB. If this property is not set, this symbolic link will be used.

Just to complement the answer, I had a similar problem (I am using Intellij IDEA and Matlab R2014a). Indeed the exact path of the program was missing from the Enviromental Variable Path.Some matlab paths can be found (or automatically written when installing matlab) like "C:\Program Files\MATLAB\MATLAB Runtime\" or "C:\Program Files\MATLAB\MATLAB Compiler\" but only the one that holds the .exe work, like "C:\Program Files\MATLAB\R2014a\bin". Yet, my program didn't work till I re-start the IDE. Keep that in mind.