### Eclipse Workspace Patch 1.0
#P org.eclipse.core.filesystem
Index: natives/unix/unixfile.c
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.core.filesystem/natives/unix/unixfile.c,v
retrieving revision 1.2
diff -u -r1.2 unixfile.c
--- natives/unix/unixfile.c	21 Jan 2010 16:12:55 -0000	1.2
+++ natives/unix/unixfile.c	26 May 2010 12:45:00 -0000
@@ -7,6 +7,7 @@
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
+ * Martin Oberhuber (Wind River) - [314448] error on exists() for non-accessible
  *******************************************************************************/
 
 #include <stdlib.h>
@@ -138,6 +139,7 @@
  * Class:     org_eclipse_core_internal_filesystem_local_unix_UnixFileNatives
  * Method:    lstat
  * Signature: ([BLorg/eclipse/core/internal/filesystem/local/unix/StructStat;)I
+ * returns:   0 on success, -1 on error converting to Java, -2 if file does not exist, or errno code on file access error
  */
 JNIEXPORT jint JNICALL Java_org_eclipse_core_internal_filesystem_local_unix_UnixFileNatives_lstat
   (JNIEnv *env, jclass clazz, jbyteArray path, jobject buf)
@@ -151,8 +153,10 @@
 	free(name);
 	if (code != -1)
 		return convertStatToObject(env, info, buf);
+	else if (errno == ENOENT)
+		return -2; /* file does not exist */
 	else
-		return code;
+		return errno;
 }
 
 /*
Index: src/org/eclipse/core/internal/filesystem/local/LocalFile.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.core.filesystem/src/org/eclipse/core/internal/filesystem/local/LocalFile.java,v
retrieving revision 1.33
diff -u -r1.33 LocalFile.java
--- src/org/eclipse/core/internal/filesystem/local/LocalFile.java	20 Jan 2010 15:20:58 -0000	1.33
+++ src/org/eclipse/core/internal/filesystem/local/LocalFile.java	26 May 2010 12:45:00 -0000
@@ -8,6 +8,7 @@
  * Contributors:
  *     IBM Corporation - initial API and implementation
  * Martin Oberhuber (Wind River) - [294429] Avoid substring baggage in FileInfo
+ * Martin Oberhuber (Wind River) - [314448] error on exists() for non-accessible
  *******************************************************************************/
 package org.eclipse.core.internal.filesystem.local;
 
@@ -139,7 +140,7 @@
 		return file.equals(otherFile.file);
 	}
 
-	public IFileInfo fetchInfo(int options, IProgressMonitor monitor) {
+	public IFileInfo fetchInfo(int options, IProgressMonitor monitor) throws CoreException {
 		if (LocalFileNativesManager.isUsingNatives()) {
 			FileInfo info = LocalFileNativesManager.fetchFileInfo(filePath);
 			//natives don't set the file name on all platforms
@@ -212,7 +213,7 @@
 		if (monitor.isCanceled()) {
 			throw new OperationCanceledException();
 		}
-		if (target.delete() || !target.exists())
+		if (target.delete())
 			return true;
 		if (target.isDirectory()) {
 			monitor.subTask(NLS.bind(Messages.deleting, target));
@@ -246,13 +247,20 @@
 				return false;
 			}
 		}
-		//if we got this far, we failed
+		//if we got this far, we failed or the file never existed 
 		String message = null;
-		if (fetchInfo().getAttribute(EFS.ATTRIBUTE_READ_ONLY))
-			message = NLS.bind(Messages.couldnotDeleteReadOnly, target.getAbsolutePath());
-		else
-			message = NLS.bind(Messages.couldnotDelete, target.getAbsolutePath());
-		status.add(new Status(IStatus.ERROR, Policy.PI_FILE_SYSTEM, EFS.ERROR_DELETE, message, null));
+		try {
+			IFileInfo info = fetchInfo(EFS.NONE, monitor);
+			if (!info.exists())
+				return true;
+			else if (info.getAttribute(EFS.ATTRIBUTE_READ_ONLY))
+				message = NLS.bind(Messages.couldnotDeleteReadOnly, target.getAbsolutePath());
+			else
+				message = NLS.bind(Messages.couldnotDelete, target.getAbsolutePath());
+			status.add(new Status(IStatus.ERROR, Policy.PI_FILE_SYSTEM, EFS.ERROR_DELETE, message, null));
+		} catch (CoreException ce) {
+			status.add(ce.getStatus());
+		}
 		return false;
 	}
 
Index: src/org/eclipse/core/internal/filesystem/local/LocalFileNativesManager.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.core.filesystem/src/org/eclipse/core/internal/filesystem/local/LocalFileNativesManager.java,v
retrieving revision 1.2
diff -u -r1.2 LocalFileNativesManager.java
--- src/org/eclipse/core/internal/filesystem/local/LocalFileNativesManager.java	15 Mar 2010 10:15:42 -0000	1.2
+++ src/org/eclipse/core/internal/filesystem/local/LocalFileNativesManager.java	26 May 2010 12:45:01 -0000
@@ -7,12 +7,14 @@
  * 
  * Contributors:
  *     IBM Corporation - initial API and implementation
+ * Martin Oberhuber (Wind River) - [314448] error on exists() for non-accessible
  *******************************************************************************/
 package org.eclipse.core.internal.filesystem.local;
 
 import org.eclipse.core.filesystem.IFileInfo;
 import org.eclipse.core.filesystem.provider.FileInfo;
 import org.eclipse.core.internal.filesystem.local.unix.UnixFileNatives;
+import org.eclipse.core.runtime.CoreException;
 
 /**
  * Dispatches methods backed by native code to the appropriate platform specific 
@@ -26,7 +28,7 @@
 		return LocalFileNatives.attributes();
 	}
 
-	public static FileInfo fetchFileInfo(String fileName) {
+	public static FileInfo fetchFileInfo(String fileName) throws CoreException {
 		if (UnixFileNatives.isUsingNatives())
 			return UnixFileNatives.fetchFileInfo(fileName);
 		return LocalFileNatives.fetchFileInfo(fileName);
Index: src/org/eclipse/core/internal/filesystem/local/unix/UnixFileNatives.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.core.filesystem/src/org/eclipse/core/internal/filesystem/local/unix/UnixFileNatives.java,v
retrieving revision 1.2
diff -u -r1.2 UnixFileNatives.java
--- src/org/eclipse/core/internal/filesystem/local/unix/UnixFileNatives.java	15 Mar 2010 10:15:42 -0000	1.2
+++ src/org/eclipse/core/internal/filesystem/local/unix/UnixFileNatives.java	26 May 2010 12:45:01 -0000
@@ -7,6 +7,7 @@
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
+ * Martin Oberhuber (Wind River) - [314448] error on exists() for non-accessible
  *******************************************************************************/
 package org.eclipse.core.internal.filesystem.local.unix;
 
@@ -17,7 +18,7 @@
 import org.eclipse.core.filesystem.provider.FileInfo;
 import org.eclipse.core.internal.filesystem.*;
 import org.eclipse.core.internal.filesystem.local.Convert;
-import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.*;
 import org.eclipse.osgi.util.NLS;
 
 public abstract class UnixFileNatives {
@@ -66,11 +67,12 @@
 		return ret;
 	}
 
-	public static FileInfo fetchFileInfo(String fileName) {
+	public static FileInfo fetchFileInfo(String fileName) throws CoreException {
 		FileInfo info = null;
 		byte[] name = fileNameToBytes(fileName);
 		StructStat stat = new StructStat();
-		if (lstat(name, stat) == 0) {
+		int errno = lstat(name, stat);
+		if (errno == 0) {
 			if ((stat.st_mode & UnixFileFlags.S_IFMT) == UnixFileFlags.S_IFLNK) {
 				if (stat(name, stat) == 0)
 					info = stat.toFileInfo();
@@ -83,8 +85,12 @@
 					info.setStringAttribute(EFS.ATTRIBUTE_LINK_TARGET, bytesToFileName(target, (int) length));
 			} else
 				info = stat.toFileInfo();
-		} else
+		} else if (errno == -2) {
+			//file does not exist
 			info = new FileInfo();
+		} else {
+			throw new CoreException(new Status(IStatus.ERROR, Policy.PI_FILE_SYSTEM, EFS.ERROR_READ, "errno: " + info, null)); //$NON-NLS-1$
+		}
 		return info;
 	}