Linux java没有此类文件或目录，java.io.FileNotFoundException：

Question

While using the File reader in the Linux system(RHEL) the below statements are not able to locate the file, same cod is working fine in Windows env.

This code resists in one jar file which I cannot modify this is the snippet of the code

String fileInput = System.getProperty("filelocation");
BufferedReader inputReader = new BufferedReader(new FileReader(fileInput));

Attribute "filelocation" is passed as

"/home/admin/Downloads/tools/bin/configuration.txt"

or

"file:///home/admin/Downloads/tools/bin/configuration.txt"

Error log is

(No such file or directory)
java.io.FileNotFoundException: /home/admin/Downloads/tools/bin/configuration.txt 
 (No such file or directory) 
       at java.io.FileInputStream.open(Native Method) 
       at java.io.FileInputStream.<init>(FileInputStream.java:146) 
       at java.io.FileInputStream.<init>(FileInputStream.java:101) 
       at java.io.FileReader.<init>(FileReader.java:58) 
       at com.mycode.Config.readAppConfig(config.java:123)

Answer 1

It was not related to JAVA. it was coming because of the shell script from where the variable was passed
used the statement input_file=${input_file:0:$(expr ${#input_file} - 1) }
this statement is used to remove the last character of a string, In my case it was a new Line char, which was not visible.

thanks to the form : https://unix.stackexchange.com/questions/144298/delete-the-last-character-of-a-string-using-string-manipulation-in-shell-script/144345#144345?newreg=9e4833bcf644426aaf9f275bf4fd1743