Fixing several spotbugs warnings#1030

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MateusJunior7 wants to merge 3 commits intoapache:masterfrom

MateusJunior7:fix-rec-catch-exception-generateIndex

Commits on Nov 16, 2025

Fix UWF_NULL_FIELD: initialize mojoDependencies list
MateusJunior7
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Check mkdirs() return value when creating outputDirectory
MateusJunior7
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Narrow exception type in generateIndex(): replace catch(Exception) with catch(IOException)
MateusJunior7
committed