Awteventqueue3 Javalangunsatisfiedlinkerror No Jacob In Javalibrarypath _VERIFIED_

How to Fix AWT-EventQueue-3 java.lang.UnsatisfiedLinkError: no Jacob in java.library.path

If you are using the JACOB library to interact with COM objects in Java, you might encounter this error when running your application on some machines:

AWT-EventQueue-3 java.lang.UnsatisfiedLinkError: no Jacob in java.library.path

This error means that the Java runtime cannot find the native library (DLL) that JACOB depends on. The DLL is usually named jacob-1.18-M2-x64.dll or jacob-1.18-M2-x86.dll depending on your system architecture.

There are two possible solutions to this problem:

Make sure that the DLL is in a directory that is on your PATH or java.library.path system property. You can set the java.library.path property when launching your application like this:

java -Djava.library.path=/path/to/dll -jar yourapp.jar

Alternatively, you can bundle the DLL with your application and use the LibraryLoader class from JACOB to load it dynamically. For example, you can put the DLL in a lib folder inside your jar file and then call this method before using any JACOB classes:

public static void loadJacobLibrary() {

try {

// Get the path of the jar file

String jarPath = new File(LibraryLoader.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getPath();

// Get the path of the lib folder

String libPath = new File(jarPath).getParent() + File.separator + \"lib\";

// Get the name of the DLL

String libName = System.mapLibraryName(\"jacob\");

// Load the DLL

System.load(libPath + File.separator + libName);

} catch (Exception e) {

e.printStackTrace();

}

For more information on how to use JACOB, please refer to these sources:

[^1^] On Some Client Machines Webutil Raises Exception: \"AWT-EventQueue-3\" java.lang.UnsatisfiedLinkError: no Jacob in java.library.path

[^2^] Trouble adding a library to an Eclipse Project - UnsatisfiedLinkError

[^3^] Error: java.lang.UnsatisfiedLinkError: no swt-pi-gtk-3550 or swt-pi-gtk in swt.library.path, java.library.path or jar file

By following these steps, you should be able to fix the AWT-EventQueue-3 java.lang.UnsatisfiedLinkError: no Jacob in java.library.path error and run your JACOB-based application smoothly. JACOB is a powerful library that allows you to access COM objects from Java, such as Microsoft Office applications, Windows Media Player, Internet Explorer, and more. You can use JACOB to automate tasks, manipulate documents, play media files, and interact with web pages from your Java code.

However, JACOB also has some limitations and drawbacks that you should be aware of. For example:

JACOB only works on Windows platforms, since it relies on the Windows COM API.

JACOB requires a 32-bit or 64-bit DLL that matches your Java runtime environment. You cannot mix and match different architectures.

JACOB may cause memory leaks or crashes if you do not release the COM objects properly. You should always call the release() method on any COM object that you create or obtain from JACOB.

JACOB may not support some newer or complex COM interfaces or features. You may need to use low-level methods or custom wrappers to access them.

If you are looking for an alternative to JACOB, you may want to check out some other libraries that provide similar functionality, such as:

Com4j: A Java library that generates Java proxies for COM objects using annotations.

JNA: A Java library that provides direct access to native libraries without requiring JNI code.

J-Interop: A Java library that implements the DCOM protocol and allows remote access to COM objects.

These libraries may have different advantages and disadvantages compared to JACOB, depending on your use case and preferences. You can find more information and documentation on their respective websites. aa16f39245