Eclipse can fail with "Resource already exists" error on Gradle projects

[philwebb]

Resource '/spring-boot-gradle-plugin/.settings/org.eclipse.jdt.core.prefs' already exists.

java.lang.Exception: Resource '/spring-boot-gradle-plugin/.settings/org.eclipse.jdt.core.prefs' already exists.
	at org.eclipse.core.internal.resources.ResourceException.provideStackTrace(ResourceException.java:42)
	at org.eclipse.core.internal.resources.ResourceException.<init>(ResourceException.java:38)
	at org.eclipse.core.internal.resources.Resource.checkDoesNotExist(Resource.java:309)
	at org.eclipse.core.internal.resources.Resource.checkDoesNotExist(Resource.java:296)
	at org.eclipse.core.internal.resources.File.create(File.java:110)
	at org.eclipse.core.internal.resources.File.create(File.java:184)
	at io.spring.javaformat.eclipse.projectsettings.ProjectSettingsFiles.applyToProject(ProjectSettingsFiles.java:76)
	at io.spring.javaformat.eclipse.gradle.RefreshProjectsSettingsJob.configureProject(RefreshProjectsSettingsJob.java:93)
	at io.spring.javaformat.eclipse.gradle.RefreshProjectsSettingsJob.configureProjects(RefreshProjectsSettingsJob.java:82)
	at io.spring.javaformat.eclipse.gradle.RefreshProjectsSettingsJob.lambda$0(RefreshProjectsSettingsJob.java:68)
	at io.spring.javaformat.eclipse.Executor.run(Executor.java:48)
	at io.spring.javaformat.eclipse.gradle.RefreshProjectsSettingsJob.run(RefreshProjectsSettingsJob.java:67)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)