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Getting No such File or Directory Exception on Ubuntu when trying compile a java project from java.lang.Process

Recently, I have switched to Ubuntu v20.04 from Windows 10 Pro v2004 because of performance purposes. When, I was on Windows I can freely compile a java project from another java program by writing:
String pathToCompiler = "\"C:/Program Files/Java/jdk-14/bin/javac\"";
Process compileProcess = Runtime.getRuntime().exec(pathToCompiler+" -d bin #.sources", null, new File("ProjectPath"))
Where the sources file is a file containing the list of classes of the project
The code above works successfully on Windows 10.
But On Linux(Ubuntu):
if I substitute the value of variable pathToCompiler as
pathToCompiler = "\"/usr/lib/jvm/java-11-openjdk-amd64/bin/javac\""
the below exception is raised up and the program executing the command exits:
"/usr/lib/jvm/java-11-openjdk-amd64/bin/javac" -d bin #.sources
java.io.IOException: Cannot run program ""/usr/lib/jvm/java-11-openjdk-amd64/bin/javac"" (in directory "/home/arham/Documents/Omega Projects/Project0"): error=2, No such file or directory
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1128)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1071)
at java.base/java.lang.Runtime.exec(Runtime.java:592)
at java.base/java.lang.Runtime.exec(Runtime.java:416)
at ide.utils.systems.BuildView.lambda$3(BuildView.java:267)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.io.IOException: error=2, No such file or directory
at java.base/java.lang.ProcessImpl.forkAndExec(Native Method)
at java.base/java.lang.ProcessImpl.<init>(ProcessImpl.java:340)
at java.base/java.lang.ProcessImpl.start(ProcessImpl.java:271)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1107)
The problem is that the file actually exists but it says No Such File or Directory
Actually, The program which is compiling the project is a Java IDE that I am creatiing.
Someone please tell if he/she knows how to fix this bug

The Runtime.exec method has several problems that make it difficult to use, and this is one of them. Use the newer ProcessBuilder class instead.
String pathToCompiler = "C:/Program Files/Java/jdk-14/bin/javac";
Process compileProcess = new ProcessBuilder(pathToCompiler, "-d", "bin", "#.sources")
.directory(new File("ProjectPath"))
.start();
The differences are:
Remove the extra quotes from around the path to the executable. If quoting is needed, the system takes care of it.
Pass the each command line arguments as a separate string. This way you don't have to worry about quoting.

Update the path to the following:
String pathToCompiler = "/usr/lib/jvm/java-11-openjdk-amd64/bin/javac/";

Running yarn job from java program using ProcessBuilder gives file does not exist error

I am trying to run a yarn job from a java wrapper program. The mapreduce jar takes two inputs:
A header file: I dont know the name of the file but the location and file extension and there's only one file at that location
A Input files directory
Apart from these I have an Output directory.
the processbuilder code looks like:
HEADER_PATH = INPUT_DIRECTORY+"/HEADER/*.tsv";
INPUT_FILES = INPUT_DIRECTORY+"/DATA/";
OUTPUT_DIRECTORY = OUTPUT_DIRECTORY+"/";
ProcessBuilder mapRProcessBuilder = new ProcessBuilder("yarn","jar",JAR_LOCATION,"-Dmapred.job.queue.name=name","-Dmapred.reduce.tasks=500",HEADER_PATH,INPUT_DIRECTORY,OUTPUT_DIRECTORY);
System.out.println(mapRProcessBuilder.command().toString());
Process mapRProcess = mapRProcessBuilder.start();
On run, I get the following error:
Exception in thread "main" java.io.FileNotFoundException: Requested
file /input/path/dir1/HEADER/*.tsv does not exist.
But when I run the same command as :
yarn jar jarfile.jar -Dmapred.job.queue.name=name -Dmapred.reduce.tasks=500 /input/path/dir1/HEADER/*.tsv /input/Dir /output/Dir/
It works all fine.
what can be the issue when running the command from java is causing this issue?

The * is being treated as part of the literal string in this case rather than a wildcard. Therefore globbing isn't expanding to your desired path name.
If there is only one file in the directory, why don't you find what its path is and pass that as the argument instead
eg.
File dir = new File(INPUT_DIRECTORY+"/HEADER);
if (dir.list().length > 0)
String HEADER_PATH = dir.list()[0].getAbsolutePath();

Directory not empty java.io.IOException

I need to launch an external app called TeamViewer from my JavaFX application.
So I've TeamViewer.app file which I'm copying to a temporary folder and launching it using:
Runtime.getRuntime().exec("open /path/to/Teamviewer.app");
But this is throwing Directory not empty IOException.
I also tried launching using shell file where I wrote "open /path/to/Teamviewer.app" command to launch.sh and launched launch.sh using process created by ProcessBuilder. if I run launch.sh from terminal, it works. But from java program,
following exception is thrown:
SEVERE: null
java.io.IOException: Cannot run program "sh" (in directory "/Applications/ColorDx.app/Contents/Java"): error=66, Directory not empty
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
at com.sc.colordx.controller.ColorDxSupportController.executeCommand(ColorDxSupportController.java:288)
at com.sc.colordx.controller.ColorDxSupportController.launchSetup(ColorDxSupportController.java:126)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
What could be the reason for directory not empty exception? It has to be non empty as I've copied TeamViewer.app there. Could this be a multi threading issue? Means I'm copying TeamViewer.app first and immediately launching it. Is there a chance that launch command is called before copying is finished?
TIA

As I'd suspected, there was a problem with runtime itself! There's one more JavaFX app that acts as installer for this app (app with Runtime problems). For installation of this app I had used following code to copy contents of .app file:
public static final void copyFile( File source, File destination ) throws IOException {
FileChannel sourceChannel = new FileInputStream( source ).getChannel();
FileChannel targetChannel = new FileOutputStream( destination ).getChannel();
sourceChannel.transferTo(0, sourceChannel.size(), targetChannel);
sourceChannel.close();
targetChannel.close();
}
Above code didn't preserve file attributes while copying. Replacing above method with Files.copy using COPY_ATTRIBUTES option solved the problem.

Executing jar file to load file in classpath

My MainClass.java has a main method which contains following code to read an excel file
String xlsxFilename = args[0];
try (InputStream fis = MainClass.class.getClassLoader().getResourceAsStream(xlsxFilename);
Workbook workbook = WorkbookFactory.create(fis);) {
...
This class is contained in a jar file and is placed in folder named lib and I'm executing it using using a shell script
run.sh
#!/bin/sh
CP=lib/*:
java -cp "$CP" in.test.MainClass $1
Now I run the command to execute the sh file
sh run.sh Sample.xlsx
But this throwing an exception,
Exception in thread "main" java.lang.NullPointerException
at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:79)
I guess the exception is because the getResourceAsStream is not loading the excel file, and the fis object is null. Is the current directory not visible to getResourceAsStream()? How can I read the xls file inside the current directory in my MainClass.java ?

I think the problem is in this line of code:
InputStream fis = MainClass.class.getClassLoader().getResourceAsStream(xlsxFilename)
The file xlsxFilename will be find by the classloader if and only if your XLS is in the classpath, i.e. in a folder specified by the -classpath option to the JVM, or inside your jar archive. In the first case your line command should became something like this:
java -classpath "your.jar:/path/to/xls/folder" in.test.MainClass $1
Clearly /path/to/xls/folder is the folder where you have to put your xls file.
In the latter case, the XLS file has to be in the root folder of you .class files.
I suggest you to load the XLS file using an absolute file path.

idlj.exe : file not found exception

I'm running the following command through CMD:
"C:\Program Files\Java\jdk1.7.0_51\bin\idlj.exe" -fall hello.idl
The hello.idl file is located in the same folder as the idlj.exe file and contains the following
module HelloApp
{
interface Hello
{
string sayHello();
oneway void shutdown();
};
};
However, I am receiving the following error upon execution of the above command:
java.io.FileNotFoundException: hello.idl (The system cannot find the file specified)
Can you please advise what is wrong here and the solution. Should the idl file be located in another folder?
Thanks

The file hello.idl should be in your current directory.
So if you have the idl file in the same dir like idlj.exe, then you should go to directory C:\Program Files\Java\jdk1.7.0_51\bin and execute the command: idlj.exe -fall hello.idl