Add exists() and isDirectory() methods to IFileStore

debug/org.eclipse.debug.core/core/org/eclipse/debug/core/sourcelookup/containers/ContainerSourceContainer.java

@@ -105,7 +105,7 @@ public Object[] findSourceElements(String name) throws CoreException {
 				if (fRootFile != null) {
 					// See bug 98090 - we need to handle relative path names
 					IFileStore target = fRootFile.getFileStore(IPath.fromOSString(name));
-					if (target.fetchInfo().exists()) {
+					if (target.exists()) {
 						// We no longer have to account for bug 95832, and URIs take care
 						// of canonical paths (fix to bug 95679 was removed).
 						IFile[] files = fRoot.findFilesForLocationURI(target.toURI());

debug/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfiguration.java

@@ -321,7 +321,7 @@ public void delete() throws CoreException {
 				IFileStore store = getFileStore();
 				if (store != null) {
 					store.delete(EFS.NONE, null);
-					if ((store.fetchInfo().exists())) {
+					if (store.exists()) {
 						throw new DebugException(
 							new Status(IStatus.ERROR, DebugPlugin.getUniqueIdentifier(),
 							 DebugException.REQUEST_FAILED, DebugCoreMessages.LaunchConfiguration_Failed_to_delete_launch_configuration__1, null)
@@ -391,7 +391,7 @@ public boolean exists() {
 		try {
 			IFileStore store = getFileStore();
 			if (store != null) {
-				return store.fetchInfo().exists();
+				return store.exists();
 			}
 		} catch (CoreException e) {
 		}

debug/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/LaunchConfigurationWorkingCopy.java

@@ -308,7 +308,7 @@ protected void writeNewFile(IProgressMonitor monitor) throws CoreException {
 					}
 					IFileStore dir = file.getParent();
 					dir.mkdir(EFS.SHALLOW, null);
-					if (!file.fetchInfo().exists()) {
+					if (!file.exists()) {
 						added = true;
 						updateMonitor(lmonitor, 1);
 					}

debug/org.eclipse.debug.tests/src/org/eclipse/debug/tests/launching/DebugFileStore.java

@@ -155,7 +155,7 @@ public IFileStore mkdir(int options, IProgressMonitor monitor) throws CoreExcept
 			}
 		} else {
 			IFileStore parent = getParent();
-			if (parent.fetchInfo().exists()) {
+			if (parent.exists()) {
 				DebugFileSystem.getDefault().setContents(toURI(), DebugFileSystem.DIRECTORY_BYTES);
 			} else if ((options & EFS.SHALLOW) > 0) {
 				throw new CoreException(new Status(IStatus.ERROR, "org.eclipse.jdt.debug.tests", //$NON-NLS-1$

docs/FAQ/FAQ_How_do_I_open_an_editor_on_a_file_outside_the_workspace.md

@@ -11,7 +11,7 @@ Since 3.3 you can use the new EFS support to open an text editor on a file outsi
             return;
         IFileStore fileStore = EFS.getLocalFileSystem().getStore(new Path(filterPath));
         fileStore = fileStore.getChild(names[i]);
-        if (!fileStore.fetchInfo().isDirectory() && fileStore.fetchInfo().exists()) {
+        if (!fileStore.isDirectory() && fileStore.exists()) {
             IWorkbenchPage page=  window.getActivePage();
             try {
                 IDE.openEditorOnFileStore(page, fileStore);

resources/bundles/org.eclipse.core.filesystem/src/org/eclipse/core/filesystem/IFileStore.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2015 IBM Corporation and others.
+ * Copyright (c) 2005, 2026 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -224,6 +224,26 @@ public interface IFileStore extends IAdaptable {
 	 */
 	public IFileInfo fetchInfo(int options, IProgressMonitor monitor) throws CoreException;
 
+	/**
+	 * Returns whether this file or directory exists in the underlying file system.
+	 *
+	 * @return {@code true} if this file exists, and {@code false} if the file does not exist or an I/O error was encountered.
+	 * @since 1.12
+	 */
+	public default boolean exists() {
+		return fetchInfo().exists();
+	}
+
+	/**
+	 * Returns whether this file is a directory, or {@code false} if this file does not exist.
+	 *
+	 * @return {@code true} if this is an existing directory, and {@code false} otherwise.
+	 * @since 1.12
+	 */
+	public default boolean isDirectory() {
+		return fetchInfo().isDirectory();
+	}
+
 	/**
 	 * Returns a child of this store as specified by the provided path.  The
 	 * path is treated as relative to this store.  This is equivalent to

resources/bundles/org.eclipse.core.filesystem/src/org/eclipse/core/filesystem/provider/FileStore.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2005, 2024 IBM Corporation and others.
+ * Copyright (c) 2005, 2026 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -161,7 +161,7 @@ protected void copyDirectory(IFileInfo sourceInfo, IFileStore destination, int o
 	 * </ul>
 	 */
 	protected void copyFile(IFileInfo sourceInfo, IFileStore destination, int options, IProgressMonitor monitor) throws CoreException {
-		if ((options & EFS.OVERWRITE) == 0 && destination.fetchInfo().exists()) {
+		if ((options & EFS.OVERWRITE) == 0 && destination.exists()) {
 			Policy.error(EFS.ERROR_EXISTS, NLS.bind(Messages.fileExists, destination));
 		}
 		String sourcePath = toString();
@@ -236,9 +236,7 @@ public IFileInfo fetchInfo() {
 			return fetchInfo(EFS.NONE, null);
 		} catch (CoreException e) {
 			//there was an error contacting the file system, so treat it as non-existent file
-			FileInfo result = new FileInfo(getName());
-			result.setExists(false);
-			return result;
+			return new FileInfo(getName());
 		}
 	}
 

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/BlobStore.java

@@ -44,7 +44,7 @@ public class BlobStore {
 	public BlobStore(IFileStore store, int limit) {
 		Assert.isNotNull(store);
 		localStore = store;
-		Assert.isTrue(localStore.fetchInfo().isDirectory());
+		Assert.isTrue(localStore.isDirectory());
 		Assert.isTrue(limit == 256 || limit == 128 || limit == 64 || limit == 32 || limit == 16 || limit == 8 || limit == 4 || limit == 2 || limit == 1);
 		mask = (byte) (limit - 1);
 	}

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/FileSystemResourceManager.java

@@ -397,7 +397,7 @@ public void copy(IResource target, IResource destination, int updateFlags, IProg
 
 		SubMonitor subMonitor = SubMonitor.convert(monitor, title, 100);
 		IFileStore destinationStore = getStore(destination);
-		if (destinationStore.fetchInfo().exists()) {
+		if (destinationStore.exists()) {
 			String message = NLS.bind(Messages.localstore_resourceExists, destination.getFullPath());
 			throw new ResourceException(IResourceStatus.FAILED_WRITE_LOCAL, destination.getFullPath(), message, null);
 		}
@@ -575,7 +575,7 @@ public IFile fileForLocation(IPath location) {
 	public int getEncoding(File target) throws CoreException {
 		// thread safety: (the location can be null if the project for this file does not exist)
 		IFileStore store = getStore(target);
-		if (!store.fetchInfo().exists()) {
+		if (!store.exists()) {
 			String message = NLS.bind(Messages.localstore_fileNotFound, store.toString());
 			throw new ResourceException(IResourceStatus.FAILED_READ_LOCAL, target.getFullPath(), message, null);
 		}
@@ -675,7 +675,7 @@ protected Workspace getWorkspace() {
 	 * Returns whether the project has any local content on disk.
 	 */
 	public boolean hasSavedContent(IProject project) {
-		return getStore(project).fetchInfo().exists();
+		return getStore(project).exists();
 	}
 
 	/**
@@ -684,8 +684,8 @@ public boolean hasSavedContent(IProject project) {
 	public boolean hasSavedDescription(IProject project) {
 		IResource dotProjectResource = project.getFile(IProjectDescription.DESCRIPTION_FILE_NAME);
 		return dotProjectResource.exists() ? //
-			getStore(dotProjectResource).fetchInfo().exists() : //
-			getStore(project).getChild(IProjectDescription.DESCRIPTION_FILE_NAME).fetchInfo().exists();
+				getStore(dotProjectResource).exists() : //
+				getStore(project).getChild(IProjectDescription.DESCRIPTION_FILE_NAME).exists();
 	}
 
 	/**
@@ -1017,7 +1017,7 @@ public ProjectDescription read(IProject target, boolean creation) throws CoreExc
 			if (description != null) {
 				return description;
 			}
-			if (!descriptionStore.fetchInfo().exists()) {
+			if (!descriptionStore.exists()) {
 				String msg = NLS.bind(Messages.resources_missingProjectMeta, target.getName());
 				throw new ResourceException(IResourceStatus.FAILED_READ_METADATA, target.getFullPath(), msg, null);
 			}
@@ -1381,8 +1381,7 @@ && storeHistory(target)) {
 		}
 		if (!assumeParentDirectoryExists && !fileInfo.exists()) {
 			IFileStore parent = store.getParent();
-			IFileInfo parentInfo = parent.fetchInfo();
-			if (!parentInfo.exists()) {
+			if (!parent.exists()) {
 				parent.mkdir(EFS.NONE, null);
 			}
 		}
@@ -1436,8 +1435,7 @@ public void write(IFile target, byte[] content, IFileInfo fileInfo, int updateFl
 				throw e;
 			}
 			IFileStore parent = store.getParent();
-			IFileInfo parentInfo = parent.fetchInfo();
-			if (parentInfo.exists()) {
+			if (parent.exists()) {
 				throw e;
 			}
 			// create missing folders:

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/HistoryStore2.java

@@ -291,7 +291,7 @@ public synchronized void copyHistory(IResource sourceResource, IResource destina
 
 	@Override
 	public boolean exists(IFileState target) {
-		return blobStore.fileFor(((FileState) target).getUUID()).fetchInfo().exists();
+		return blobStore.fileFor(((FileState) target).getUUID()).exists();
 	}
 
 	@Override

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/localstore/RefreshLocalAliasVisitor.java

@@ -56,7 +56,7 @@ protected void deleteResource(UnifiedTreeNode node, Resource target) throws Core
 		IResource[] aliases = workspace.getAliasManager().computeAliases(target, store);
 		if (aliases != null) {
 			boolean wasFilteredOut = false;
-			if (store.fetchInfo() != null && store.fetchInfo().exists()) {
+			if (store.exists()) {
 				wasFilteredOut = target.isFiltered();
 			}
 			for (IResource aliase : aliases) {

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/refresh/PollingMonitor.java

@@ -21,9 +21,15 @@
 import org.eclipse.core.internal.resources.Resource;
 import org.eclipse.core.internal.utils.Messages;
 import org.eclipse.core.internal.utils.Policy;
-import org.eclipse.core.resources.*;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.resources.refresh.IRefreshMonitor;
-import org.eclipse.core.runtime.*;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.osgi.framework.Bundle;
 
@@ -192,7 +198,7 @@ private void poll(IResource resource) {
 			return;
 		}
 		//don't refresh links with no local content
-		if (resource.isLinked() && !((Resource) resource).getStore().fetchInfo().exists()) {
+		if (resource.isLinked() && !((Resource) resource).getStore().exists()) {
 			return;
 		}
 		//submit refresh request

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/resources/AliasManager.java

@@ -467,7 +467,7 @@ private void buildLocationsMap() {
 	 * @exception CoreException
 	 */
 	private boolean checkDeletion(Project project, IFileStore location) throws CoreException {
-		if (project.exists() && !location.fetchInfo().exists()) {
+		if (project.exists() && !location.exists()) {
 			//perform internal deletion of project from workspace tree because
 			// it is already deleted from disk and we can't acquire a different
 			//scheduling rule in this context (none is needed because we are

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/resources/Project.java

@@ -30,7 +30,6 @@
 import java.util.Map;
 import java.util.TreeSet;
 import org.eclipse.core.filesystem.EFS;
-import org.eclipse.core.filesystem.IFileInfo;
 import org.eclipse.core.filesystem.IFileStore;
 import org.eclipse.core.internal.events.LifecycleEvent;
 import org.eclipse.core.internal.preferences.EclipsePreferences;
@@ -100,8 +99,7 @@ protected void assertCreateRequirements(IProjectDescription description) throws
 		//if the project is in the default location, need to check for collision with existing folder of different case
 		if (!Workspace.caseSensitive) {
 			IFileStore store = getStore();
-			IFileInfo localInfo = store.fetchInfo();
-			if (localInfo.exists()) {
+			if (store.exists()) {
 				String name = getLocalManager().getLocalName(store);
 				if (name != null && !store.getName().equals(name)) {
 					String msg = NLS.bind(Messages.resources_existsLocalDifferentCase, IPath.fromOSString(store.toString()).removeLastSegments(1).append(name).toOSString());

resources/bundles/org.eclipse.core.resources/src/org/eclipse/core/internal/resources/ResourceTree.java

@@ -15,14 +15,35 @@
 package org.eclipse.core.internal.resources;
 
 import java.net.URI;
-import org.eclipse.core.filesystem.*;
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.filesystem.IFileInfo;
+import org.eclipse.core.filesystem.IFileStore;
+import org.eclipse.core.filesystem.IFileSystem;
 import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.core.internal.localstore.FileSystemResourceManager;
 import org.eclipse.core.internal.properties.IPropertyManager;
-import org.eclipse.core.internal.utils.*;
-import org.eclipse.core.resources.*;
+import org.eclipse.core.internal.utils.BitMask;
+import org.eclipse.core.internal.utils.Messages;
+import org.eclipse.core.internal.utils.Policy;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IResourceStatus;
+import org.eclipse.core.resources.IResourceVisitor;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.resources.team.IResourceTree;
-import org.eclipse.core.runtime.*;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.MultiStatus;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.core.runtime.jobs.ILock;
 import org.eclipse.osgi.util.NLS;
 
@@ -201,7 +222,7 @@ public void deletedProject(IProject target) {
 	private boolean ensureDestinationEmpty(IProject source, IFileStore destinationStore, IProgressMonitor monitor) throws CoreException {
 		String message;
 		//Make sure the destination location is unoccupied
-		if (!destinationStore.fetchInfo().exists()) {
+		if (!destinationStore.exists()) {
 			return true;
 		}
 		//check for existing children
@@ -289,7 +310,7 @@ private boolean internalDeleteFile(IFile file, int flags, IProgressMonitor monit
 			// If the file doesn't exist on disk then signal to the workspace to delete the
 			// file and return.
 			IFileStore fileStore = localManager.getStore(file);
-			boolean localExists = fileStore.fetchInfo().exists();
+			boolean localExists = fileStore.exists();
 			if (!localExists) {
 				deletedFile(file);
 				// Indicate that the delete was successful.
@@ -363,7 +384,7 @@ private boolean internalDeleteFolder(IFolder folder, int flags, IProgressMonitor
 
 		// If the folder doesn't exist on disk then update the tree and return.
 		IFileStore fileStore = localManager.getStore(folder);
-		if (!fileStore.fetchInfo().exists()) {
+		if (!fileStore.exists()) {
 			deletedFolder(folder);
 			return true;
 		}
@@ -970,7 +991,7 @@ public void standardMoveFile(IFile source, IFile destination, int flags, IProgre
 			} catch (CoreException e) {
 				failed(e.getStatus());
 				// did the fail occur after copying to the destination?
-				failedDeletingSource = destStore != null && destStore.fetchInfo().exists();
+				failedDeletingSource = destStore != null && destStore.exists();
 				// if so, we should proceed
 				if (!failedDeletingSource) {
 					return;
@@ -1039,7 +1060,7 @@ public void standardMoveFolder(IFolder source, IFolder destination, int flags, I
 			} catch (CoreException e) {
 				failed(e.getStatus());
 				// did the fail occur after copying to the destination?
-				failedDeletingSource = destStore != null && destStore.fetchInfo().exists();
+				failedDeletingSource = destStore != null && destStore.exists();
 				// if so, we should proceed
 				if (!failedDeletingSource) {
 					return;

resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF

@@ -3,7 +3,7 @@ Bundle-ManifestVersion: 2
 Automatic-Module-Name: org.eclipse.ui.examples.filesystem
 Bundle-Name: Efs Examples Plug-in
 Bundle-SymbolicName: org.eclipse.ui.examples.filesystem;singleton:=true
-Bundle-Version: 1.2.100.qualifier
+Bundle-Version: 1.2.200.qualifier
 Bundle-Vendor: Eclipse.org
 Require-Bundle: org.eclipse.core.filesystem,
  org.eclipse.core.resources,

resources/examples/org.eclipse.ui.examples.filesystem/src/org/eclipse/ui/examples/filesystem/NestedProjectCreator.java

@@ -185,8 +185,7 @@ private void searchInLink(IResource link) {
 					private void searchInStore(IFileStore store) {
 						try {
 							if (store.getName().equals(IProjectDescription.DESCRIPTION_FILE_NAME)) {
-								IFileInfo info = store.fetchInfo();
-								if (!info.isDirectory()) {
+								if (!store.isDirectory()) {
 									try (InputStream input = store.openInputStream(EFS.NONE, null)) {
 										IProjectDescription description = workspace.loadProjectDescription(input);
 										description.setLocationURI(store.getParent().toURI());