Install4j绕过了自定义安装步骤

Question

We have an application packed with install4j. The initial step is to choose between typical and custom installations. The custom installation is usually bringing up the option to choose the localsettings folder, the appdata folder and in the next step, the installation folder (default: Program Files).

For some reason, in a specific environment, when checking neither of the options, the installation proceeds without asking for the desired folder paths.

An error file was created as well:

java.lang.ClassNotFoundException: I4jScript_Internal_12
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.install4j.runtime.installer.ContextImpl.runScript(Unknown Source)
at com.install4j.runtime.installer.ContextImpl.runScript(Unknown Source)
at com.install4j.runtime.installer.ContextImpl.runBooleanScript(Unknown Source)
at com.install4j.runtime.installer.ContextImpl.runBooleanScript(Unknown Source)
at com.install4j.runtime.installer.ContextImpl.runBooleanScript(Unknown Source)
at com.install4j.runtime.installer.controller.Controller.executeActions(Unknown Source)
at com.install4j.runtime.installer.controller.Controller.handleCommand(Unknown Source)
at com.install4j.runtime.installer.controller.Controller.start(Unknown Source)
at com.install4j.runtime.installer.Installer.main(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)
at com.install4j.runtime.launcher.WinLauncher.main(Unknown Source)

Could you please let me know, what could be the reason for this behavior?

Answer 1

The class that is not found is for a script in your install4j project. This can only happen if there is an inconsistency in your installation directory, ie if .install4j/user.jar and .install4j/i4jparams.conf are not from the same installer.