fix: Fix NPE due to duplicated package-info.java with setIgnoreDuplicateDeclarations(true) #3791
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Fix #3790
This PR fixes an NPE crash that occurs when the same project defines
package-info.java
files for the same package but in different places, and one has setenv.setIgnoreDuplicateDeclarations(true)
. This appears quite a lot in the wild with multi-module projects.As per my musings in #3790, I don't think the JLS actually allows for duplication of
package-info
files, and so I'm only allowing this when we are explicitly ignoring duplicated declarations.