Fix for issue 7641: Wrong path to TeXstudio

CHANGELOG.md

@@ -77,6 +77,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue with saving large `.bib` files [#7265](https://github.com/JabRef/jabref/issues/7265)
 - We fixed an issue with very large page numbers [#7590](https://github.com/JabRef/jabref/issues/7590)
 - We fixed an issue where the article title with curly brackets fails to download the arXiv link (pdf file). [#7633](https://github.com/JabRef/jabref/issues/7633)
+- We fixed an issue with the default path of external application. [#7641](https://github.com/JabRef/jabref/issues/7641)
 
 ### Removed
 

src/main/java/org/jabref/gui/desktop/os/Windows.java

@@ -27,13 +27,36 @@ public void openFile(String filePath, String fileType) throws IOException {
     @Override
     public String detectProgramPath(String programName, String directoryName) {
         String progFiles = System.getenv("ProgramFiles(x86)");
-        if (progFiles == null) {
-            progFiles = System.getenv("ProgramFiles");
+        String programPath;
+        if (progFiles != null) {
+            programPath = getProgramPath(programName, directoryName, progFiles);
+            if (programPath != null) {
+                return programPath;
+            }
         }
+
+        progFiles = System.getenv("ProgramFiles");
+        System.out.println(progFiles);
+        programPath = getProgramPath(programName, directoryName, progFiles);
+        if (programPath != null) {
+            return programPath;
+        }
+
+        return "";
+    }
+
+    private String getProgramPath(String programName, String directoryName, String progFiles) {
+        String programPath;
         if ((directoryName != null) && !directoryName.isEmpty()) {
-            return Path.of(progFiles, directoryName, programName + DEFAULT_EXECUTABLE_EXTENSION).toString();
+            programPath = Path.of(progFiles, directoryName, programName + DEFAULT_EXECUTABLE_EXTENSION).toString();
+        } else {
+            programPath = Path.of(progFiles, programName + DEFAULT_EXECUTABLE_EXTENSION).toString();
+        }
+        File program = new File(programPath);
+        if (program.exists()) {
+            return programPath;
         }
-        return Path.of(progFiles, programName + DEFAULT_EXECUTABLE_EXTENSION).toString();
+        return null;
     }
 
     @Override