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How can i find a Resource with a locationURI?

Path path = new Path('/home/foo/eclipse/runtime-EclipseApplication/someproj/B.txt'); IResource res = ResourcesPlugin.getWorkspace().getRoot().findMember(path);

I know there is a way by using the locationURI from current project to trim the "needless" part, but is there a "better" way to slove this issue.

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You can use the following construction:

ResourcesPlugin.getWorkspace().getRoot().findFilesForLocationURI(URIUtil.toURI(fileName));

where fileName - absolute path of File.getAbsolutePath()

and URIUtil from org.eclipse.core.filesystem

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Thank you, just wondering why it won't find all IResources like that in general and not just the IFiles.
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You can use a FileLocator to find the file within your bundle, if that is what you want (instead of finding a file in the runtime workspace), see Retrieve a file from within a folder in the workspace

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That is not exactly what i wanted. What i have is a absolute OS path to a resource of a current eclipse project. So what i want is to find the IResource with a absolute OS path. Currently i get null from the findMember method, cause it expects a path where the workspace is handled as the root path. In my case it would be /someproj/B.txt. But what i have is /home/foo/eclipse/runtime-EclipseApplication/someproj/B.txt
@user427678 I see - wouldn't know any other way but the solution you mentioned: trimming the path based on the workspace location.

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