{"record":{"id":"1a6fe304901471f3","repo":"java-native-access/jna","slug":"unable-to-extract-version-info-from-the-file-filepath","errorCode":null,"errorMessage":"Unable to extract version info from the file: \"<filePath>\"","messagePattern":"Unable to extract version info from the file: \"<filePath>\"","errorType":"exception","errorClass":"UnsupportedOperationException","httpStatus":null,"severity":"error","filePath":"contrib/platform/src/com/sun/jna/platform/win32/VersionUtil.java","lineNumber":80,"sourceCode":"            throw new Win32Exception(Native.getLastError());\n        }\n\n        // buffer to hold version info\n        Pointer lpData = new Memory(versionLength);\n\n        // pointer to pointer to location in aforementioned buffer\n        PointerByReference lplpBuffer = new PointerByReference();\n\n        if (!Version.INSTANCE.GetFileVersionInfo(filePath, 0, versionLength, lpData)) {\n            throw new Win32Exception(Native.getLastError());\n        }\n\n        // here to make VerQueryValue happy.\n        IntByReference puLen = new IntByReference();\n\n        // this does not set GetLastError, so no need to throw a Win32Exception\n        if (!Version.INSTANCE.VerQueryValue(lpData, \"\\\\\", lplpBuffer, puLen)) {\n            throw new UnsupportedOperationException(\"Unable to extract version info from the file: \\\"\" + filePath + \"\\\"\");\n        }\n\n        VS_FIXEDFILEINFO fileInfo = new VS_FIXEDFILEINFO(lplpBuffer.getValue());\n        fileInfo.read();\n        return fileInfo;\n    }\n\n}\n","sourceCodeStart":62,"sourceCodeEnd":89,"githubUrl":"https://github.com/java-native-access/jna/blob/d036ad9781adad4b66693e8fa7098e4ac665e0a3/contrib/platform/src/com/sun/jna/platform/win32/VersionUtil.java#L62-L89","documentation":"VersionUtil.getFileVersionInfo calls the Win32 VerQueryValue function to extract the VS_FIXEDFILEINFO version block from a file's version resource. When VerQueryValue returns FALSE, the file's version information cannot be parsed, and this UnsupportedOperationException is thrown with the file path.","triggerScenarios":"Calling VersionUtil.getFileVersionInfo(filePath) on a file that has no version resource at all, has a malformed/corrupt version resource, or on a non-PE file; also when GetFileVersionInfoSize succeeded but the buffer layout is invalid.","commonSituations":"Inspecting version info of DLLs/EXEs that legitimately carry no VERSIONINFO resource (many third-party or MinGW-built binaries); passing a .sys driver or data file; corrupted system files.","solutions":["Verify the target file actually contains a version resource (e.g. right-click → Properties → Details in Explorer) before calling","Check VersionUtil.getFileVersionInfoSize / GetFileVersionInfoSizeW returns > 0 and handle 0 as 'no version info' instead of treating it as an error","Point the call at the correct binary — a path typo may resolve to a resource-less file","Wrap the call in try/catch for UnsupportedOperationException and fall back to null/skip"],"exampleFix":"// before\nVS_FIXEDFILEINFO info = VersionUtil.getFileVersionInfo(path);\n// after\nVS_FIXEDFILEINFO info;\ntry {\n    info = VersionUtil.getFileVersionInfo(path);\n} catch (UnsupportedOperationException e) {\n    info = null; // file has no version resource\n}","handlingStrategy":"try-catch","validationCode":"if (!file.exists() || file.length() == 0) {\n    throw new IllegalArgumentException(\"File missing or empty: \" + file);\n}\nint size = Version.INSTANCE.GetFileVersionInfoSize(file.getAbsolutePath(), null);\nboolean hasVersionInfo = size > 0;","typeGuard":null,"tryCatchPattern":"try {\n    VS_FIXEDFILEINFO info = VersionUtil.getFileVersionInfo(path);\n} catch (UnsupportedOperationException e) {\n    VS_FIXEDFILEINFO info = null; // no version resource\n}","preventionTips":["Check GetFileVersionInfoSizeW > 0 before parsing","Only call on PE binaries known to embed VERSIONINFO resources","Never treat missing version info as a hard failure in inventory tooling"],"tags":["win32","version-info","pe-resources"],"backgroundTag":"file-read-failed","analyzedSha":"d036ad9781adad4b66693e8fa7098e4ac665e0a3","analyzedAt":"2026-09-12T06:50:59.239Z","contentChangedAt":"2026-09-12T06:50:59.239Z","schemaVersion":2},"datasetVersion":"2026-09-19T12:17:13.211Z"}