Tlauncher Java

My particular issue was caused because I was working with directories that involved symbolic links (shortcuts). Consequently, trying java -jar ../../myJar.jar didn't work because I wasn't where I thought I was.

Install the JRE or JDK. Open a command prompt and type 'java' and if it comes up, you're golden. If not, go back to the PATH variable and add "C:\Program Files (x86)\Java\jdk1.8.0_221\bin" or whatever looks right for your machine.

Tlauncher Java

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You can not Uninstall/Reinstall JRE if you are having this error. That's why because previous installation has copied 3 files namely Java.exe, Javaw.exe, javaws.exe in the c:/windows/system32 folder.Simply go there and remove these files and download a fresh version of jre from oracle and install it. I will prefer JDK 1.6 update 45. Which is very stable.

2) If the files are there, your PATH is somehow incorrect or pointing at an old/broken Java install. In this case you either need to fix your PATH to point to the correct java.exe/javaw.exe, or use a fully qualified path. So instead of:

i also had the same issue due to one more instance of java,javaw and javaws in C:\Windows\System32 which was pointing to jre6 and my default location of jre was pointing to this(C:\Windows\System32) location. Even having jdk 1.8 as my JAVA_HOME location i were getting this problem.so either remove or rename java,javaw and javaws it will work.

All answers with java.exe in Windows\System32 are right but in more tough situation - there are no files, but error messages still happen, then remember about Windows Registry entries (look regedit.exe).

E.g.; my windows 8.1 I have runtime java version of 8, then when I install Ver7 it is bu default taking V8, yet I uninstall 8, In this kind of Scenarios, Removing java.exe from c:\windows\system32 makes my java runtime work

If java is added in environment path, then open command prompt and type where java. If you get list of directories where java path specified. Other than the directory where you need the java file, delete the java files in all other directories.

If you are reading 2nd pointer, then 1st pointer might have not helped. Type regedit in run dialog and under HKEY_LOCAL_MACHINE, go to softwares/javasoft and rename the paths of the java installed directory.

What I did is, just uninstall all java versions and freshly installed the required version. But this didn't seem to work when I checked in terminal. Then I had to reopen the terminal and run the command, then only it worked.

Do notice that the Minecraft launcher is different from the actual minecraft game. The Minecraft launcher has been detected by the graphics card and I believe it's powering it but the actual game is powered by the integrated graphics card. The Minecraft game is a java environment which when I added it to the Radeon Settings showed me that it was another game called Jedi Academy or something along those lines. Even when Minecraft is running, the graphics card it uses is still the integrated one after adding the Javaw.exe environment to the Radeon settings.

Does anyone have any suggestions or fixes of their own? Thanks in advance.

Minecraft > Install > runtime > jre-x64 > bin > javaw.exe

Click on javaw.exe and you'll add it to your switchable graphics section. That's all! Just make sure it's on high performance and you're set.

Adding on to what you said. I had set java.exe. javaw.exe. Minecraft.exe. And a whole bunch of things to high performance in the graphics settings. It wasn't using my dedicated gpu still. If this helps anyone. I remembered doing research on this in the past and I checked my power options and set my power plan to high performance (Actually ultimate performance). Thus switching from those settings that focus on power saving and probably overwrite the command to use the dedicated gpu in my case.

I have an updated Radeon Software, and I added the javaw.exe, but it still uses the integrated GPU instead of my AMD GPU, while I try to add another app, it uses the AMD GPU, like for example, I add and opened up Minecraft, and it's using the Intel UHD Graphics GPU, while I add and open Roblox it's using the AMD GPU, which is weird, but I already updated the OpenGL and stuff, but it still doesn't work! I tried via the Settings app, it also doesn't work, help me pls

As stated previously using windows built-in Graphics settings you can force the applications to use the graphics card. The main applications that you are looking for are java.exe and javaw.exe.

You can find these files in a number of places:

For modded using the lastest Curse Forge launcher by Overwolf:

C:\Users\*ProfileName*\Twitch\MinecraftInstall\runtime\bin

C:\Users\*ProfileName*\Twitch\MinecraftInstall\runtime\jre-x64\bin

C:\Users\*ProfileName*\Twitch\MinecraftInstall\runtime\jre-legacy\windows-x64\jre-legacy\bin

(jre-legacy is probably the one you are looking for as they said they would continue to use the legacy launcher)

The latest (recently updated) Minecraft Launcher from Mojang:

C:\Users\*ProfileName*\AppData\Local\Packages\Microsoft.4297127D64EC6_8wekyb3d8bbwe\LocalCache\Local\runtime\jre-legacy\windows-x64\jre-legacy\bin

Feel free to add any other locations there might be as the install locations have changed from launcher to launcher

The legacy win32 launcher and I believe one older version exists. To find out where these files are just launch the game, open task manager and right-click the Java(TM) Platform SE binary program, and click the open file location to find out where it is running from.

You want to set those to the High-Performance setting.

-As of writing this may be optional.

In order for these files to be configured using Radeon, you have to go into your Radeon application and add the javaw.exe and maybe the java.exe files to your game, in the Gaming tab. To add a game go to the said tab and look for three dots on the right, click them. and press "Add A Game..."

You can then configure the game however you wish, with the exception of the "Anisotropic Filtering" setting, which you want to disable, This setting was causing white borders around blocks, which has to do with the texture filtering.

Also, the Anti-Aliasing setting needs to be set to "Use application settings."

And just finding one version of the file seems to set correctly for all other locations, so only one is needed in Radeon and only the javaw.exe file is needed.

The in game settings are not going to enable/disable gpu usage. From what I can tell it could only be a driver issue, I would make sure other games use the gpu. I would also make sure you have a currently supported gpu. I do not really see why the gpu would not be recognized and use for minecraft by windows if you followed the above steps. Therefore, it would have to be either the gpu itself or the game. Minecraft java can be a bit finicky to work with due to its age too.

i downloaded the zip file extracted it and made the jar executable i download the java with sudo apt install default-jdk and i cant seem to run the jar file neither by double clicking or in the terminal with sudo java -jar can i pls get some help

I have tried running the game from the technic launcher instead, passing the proxy parameters as java args, but this has no apparent effect. I have also tried using the Java Control Panel to set a proxy for the JRE, but this has no noticeable effect.

Analyzing the result makes it obvious that the flag component is empty and that java.util.Formatter is to blame for the issue. This is so that printf() may interpret the format string and produce output using the java.util.Formatter class. And failure to escape the character that is generating this issue while printing the percentage (%) in the printf() statement's output.

Verifying your Java installation can help you determine issues with the release itself. You can use the java -version command in Command Prompt to check the current version of Java installed along with the date of installation.

Hopefully this solution helped you fix the Internal Exception: java.io.ioexception error and let you get back to playing Minecraft. If not then you might want to take to the Minecraft Forum to find some more information. 2351a5e196