correct typo in gradle checksum mismatch error

[HandOfGod94]

Currently, jdtls uses java.imports.gradle.wrapper.checksums to configure
allowed/disallowed gradle-wrappers. But the error is misleading as it
says java.import.gradle.wrapper.checksums.

It took me an evening to figure out, we need to use imports and not import for this config.

refer: https://github.com/eclipse/eclipse.jdt.ls/blob/master/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/preferences/Preferences.java#L300

It's quite confusing. The docs are also misleading, as it has quite old info on the config which can be used.

[eclipse-ls-bot]

Can one of the admins verify this patch?

[rgrunber]

You're right. Just looking at https://github.com/eclipse/eclipse.jdt.ls/blob/c77a45e0dc12d6d584d3c8d72d33d778c59f3f5e/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/preferences/Preferences.java#L300 , it's clear that's the correct property.

Strangely, it's the only setting that has imports. All the others use import : https://github.com/eclipse/eclipse.jdt.ls/blob/c77a45e0dc12d6d584d3c8d72d33d778c59f3f5e/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/preferences/Preferences.java#L130-L162 so maybe we should also adjust this in the future.

It does seem to be correct at https://github.com/redhat-developer/vscode-java/wiki/Gradle-Support#suspicious-gradle-wrapper-detection- though.. We should correct it on the JDT-LS side.

[rgrunber]

It would be easier to contribute in the future if you signed the Eclipse CLA, but as a 1-line change I think this should be acceptable.

Thanks again for finding this.