[blowekamp]

Fix ExampleIOPluginTest2: switch Examples/IO/IOPlugin.cxx from putenv() + ReHash() to ObjectFactoryBase::SetAutoloadPath(), matching the API introduced in 3d301f7.

Root cause

Since 3d301f7, ReHash() reuses the autoload path cached in ObjectFactoryBase's globals instead of re-reading ITK_AUTOLOAD_PATH from the environment. IOPlugin.cxx still set the env var at runtime via putenv(), so the plugin directory passed on the command line was silently ignored, and ExampleIOPluginTest2 failed with "Could not create IO object for reading file FileFreeIO::...".

AI assistance

• Tool: Claude Code (claude-sonnet-5)
• Role: root-cause analysis of the test failure and the fix
• Contribution: traced the failure to the cached autoload path introduced in 3d301f7 and updated IOPlugin.cxx to use SetAutoloadPath(), mirroring itkObjectFactoryTest2.cxx
• Verified locally: built IOPlugin and ran ExampleIOPluginTest/ExampleIOPluginTest2 in an existing shared build; both pass

[blowekamp]

This system dependent issue that was inherited from the env, raises the questions if the interface source be accepting a something higher level than a string with a system dependent separator. A list of string, or an even hight level list of "path" objects might be better.

[blowekamp]

Agreed, a list of paths avoids baking the platform-specific separator into caller code. Done in #7035.

[dzenanz]

Looks good on a glance.

[hjmjohnson]

Rebased on main (plain rebase, patch unchanged) to pick up #7028, which fixes the itkIndent.h include-cycle error behind the ARMBUILD failure. Pull with git pull --rebase before pushing again.

[greptile-apps]

Confidence Score: 5/5

[Low impact] The PR appears safe to merge.

Summary

Updates IOPlugin.cxx to set the stored plugin search path through ObjectFactoryBase::SetAutoloadPath() before calling ReHash().

• The IO plugin example finds factories in its optional folder.

_{Reviews (1) · Last reviewed commit: "BUG: Use SetAutoloadPath in IOPlugin exa..." · Reviewed by Greptile}