On Windows, certain versions of Snow Inventory Oracle scanners (Java, Middleware, Hardware, and SIOS) may not complete their scans. Instead, the log repeatedly reports:

ERROR;          Initializing;;; Invalid jar entry

This issue affects older versions of the four Snow Inventory scanner modules. The problem occurs if the scanner version is earlier than the following release numbers:

• Snow Inventory Java Scanner 3.2.3

• Snow Inventory Oracle Middleware Scanner 3.2.2

• Snow Inventory Oracle Hardware Scanner 2.1.2

• Snow Inventory Oracle Scanner 8.2.3

Cause

Recent releases introduced a security enhancement that validates jar file contents to prevent path‑traversal attacks. As a result, the scanner must unpack jar files to a temporary directory whose path exactly matches the path reported by Windows. If the paths differ (for example, because Windows shortened the username or changed the case of a folder), the scanner will reject the path and report “Invalid jar entry”.

For example, Windows might return a short path like C:\Users\ROBERT~1.URQ\AppData\Local\Temp.

But the actual folder is C:\Users\robert.urquhart\AppData\Local\Temp.

Because these do not match exactly, the scanner cannot verify the temporary directory and fails.