[#1242] fix diamond operator false positive warning

[pnatashap]

• disable PMD.UseDiamondOperator
• one more exception for DiamondOperatorCheck

Fix #1242

[pnatashap]

@yegor256 please take a look

[yegor256]

@rultor merge

[yegor256]

@rultor status

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor status

@yegor256 This is what's going on here:

• request 2021850064 is in processing, command is merge
• request has 6 parameter(s):
• fork: git@github.com:pnatashap/qulice.git
• fork_branch: 1242
• head: git@github.com:yegor256/qulice.git
• head_branch: master
• pull_id: 1243
• pull_title: [#1242] fix diamond operator false positive warning
• build is not running

More information about Rultor commands you can get here.

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 12min)

[yegor256]

@pnatashap thanks!