textDocument/inlayHint fails when classpath is incorrect

[angelozerr]

textDocument/inlayHint fails when classpath is incorrect

Fixes #858

[fbricon]

Can you check that other usages of IPackageFragmentRoot are guarded too? Also maybe check in lsp4mp

See:

• https://github.com/search?q=repo%3Aredhat-developer%2Fquarkus-ls%20IPackageFragmentRoot&type=code
• https://github.com/search?q=repo%3Aeclipse%2Flsp4mp%20IPackageFragmentRoot&type=code

[angelozerr]

Good catch @fbricon, this check must be done only when project.getPackageFragmentRoot is called:

• I fix that for QuarkusConfigProvider
• for LSP4MP no need to do that

[angelozerr]

@fbricon can we merge the PR?

[fbricon]

Thanks @angelozerr!