+ * Pathname is the pathname of the file or directory granted the specified
+ * actions. A pathname that ends in "/*" (where "/" is
+ * the file separator character, File.separatorChar) indicates
+ * all the files and directories contained in that directory. A pathname
+ * that ends with "/-" indicates (recursively) all files
+ * and subdirectories contained in that directory. Such a pathname is called
+ * a wildcard pathname. Otherwise, it's a simple pathname.
+ *
+ * A pathname consisting of the special token {@literal "<
+ * Note: A pathname consisting of a single "*" indicates all the files
+ * in the current directory, while a pathname consisting of a single "-"
+ * indicates all the files in the current directory and
+ * (recursively) all files and subdirectories contained in the current
+ * directory.
+ *
+ * The actions to be granted are passed to the constructor in a string containing
+ * a list of one or more comma-separated keywords. The possible keywords are
+ * "read", "write", "execute", "delete", and "readlink". Their meaning is
+ * defined as follows:
+ *
+ *
+ * The actions string is converted to lowercase before processing.
+ *
+ * Be careful when granting FilePermissions. Think about the implications
+ * of granting read and especially write access to various files and
+ * directories. The {@literal "<
+ * Please note: Code can always read a file from the same
+ * directory it's in (or a subdirectory of that directory); it does not
+ * need explicit permission to do so.
+ *
+ * @see java.security.Permission
+ * @see java.security.Permissions
+ * @see java.security.PermissionCollection
+ *
+ *
+ * @author Marianne Mueller
+ * @author Roland Schemers
+ * @since 1.2
+ *
+ * @serial exclude
+ */
+
+public final class FilePermission extends Permission implements Serializable {
+
+ /**
+ * Execute action.
+ */
+ private static final int EXECUTE = 0x1;
+ /**
+ * Write action.
+ */
+ private static final int WRITE = 0x2;
+ /**
+ * Read action.
+ */
+ private static final int READ = 0x4;
+ /**
+ * Delete action.
+ */
+ private static final int DELETE = 0x8;
+ /**
+ * Read link action.
+ */
+ private static final int READLINK = 0x10;
+
+ /**
+ * All actions (read,write,execute,delete,readlink)
+ */
+ private static final int ALL = READ|WRITE|EXECUTE|DELETE|READLINK;
+ /**
+ * No actions.
+ */
+ private static final int NONE = 0x0;
+
+ // the actions mask
+ private transient int mask;
+
+ // does path indicate a directory? (wildcard or recursive)
+ private transient boolean directory;
+
+ // is it a recursive directory specification?
+ private transient boolean recursive;
+
+ /**
+ * the actions string.
+ *
+ * @serial
+ */
+ private String actions; // Left null as long as possible, then
+ // created and re-used in the getAction function.
+
+ // canonicalized dir path. used by the "old" behavior (nb == false).
+ // In the case of directories, it is the name "/blah/*" or "/blah/-"
+ // without the last character (the "*" or "-").
+
+ private transient String cpath;
+
+ // Following fields used by the "new" behavior (nb == true), in which
+ // input path is not canonicalized. For compatibility (so that granting
+ // FilePermission on "x" allows reading "`pwd`/x", an alternative path
+ // can be added so that both can be used in an implies() check. Please note
+ // the alternative path only deals with absolute/relative path, and does
+ // not deal with symlink/target.
+
+ private transient Path npath; // normalized dir path.
+ private transient Path npath2; // alternative normalized dir path.
+ private transient boolean allFiles; // whether this is < A pathname that ends in "/*" (where "/" is
+ * the file separator character, A pathname consisting of a single "*" indicates all the files
+ * in the current directory, while a pathname consisting of a single "-"
+ * indicates all the files in the current directory and
+ * (recursively) all files and subdirectories contained in the current
+ * directory.
+ *
+ * A pathname containing an empty string represents an empty path.
+ *
+ * @implNote In this implementation, the
+ * {@code jdk.io.permissionsUseCanonicalPath} system property dictates how
+ * the {@code path} argument is processed and stored.
+ *
+ * If the value of the system property is set to {@code true}, {@code path}
+ * is canonicalized and stored as a String object named {@code cpath}.
+ * This means a relative path is converted to an absolute path, a Windows
+ * DOS-style 8.3 path is expanded to a long path, and a symbolic link is
+ * resolved to its target, etc.
+ *
+ * If the value of the system property is set to {@code false}, {@code path}
+ * is converted to a {@link java.nio.file.Path} object named {@code npath}
+ * after {@link Path#normalize() normalization}. No canonicalization is
+ * performed which means the underlying file system is not accessed.
+ * If an {@link InvalidPathException} is thrown during the conversion,
+ * this {@code FilePermission} will be labeled as invalid.
+ *
+ * In either case, the "*" or "-" character at the end of a wildcard
+ * {@code path} is removed before canonicalization or normalization.
+ * It is stored in a separate wildcard flag field.
+ *
+ * The default value of the {@code jdk.io.permissionsUseCanonicalPath}
+ * system property is {@code false} in this implementation.
+ *
+ * @param path the pathname of the file/directory.
+ * @param actions the action string.
+ *
+ * @throws IllegalArgumentException
+ * If actions is
+ * More specifically, this method returns true if:
+ *
+ * Precisely, a simple pathname implies another simple pathname
+ * if and only if they are equal. A simple pathname never implies
+ * a wildcard pathname. A wildcard pathname implies another wildcard
+ * pathname if and only if all simple pathnames implied by the latter
+ * are implied by the former. A wildcard pathname implies a simple
+ * pathname if and only if
+ *
+ * {@literal "<
+ * If {@code jdk.io.permissionsUseCanonicalPath} is {@code false}, a
+ * simple {@code npath} is inside a wildcard {@code npath} if and only if
+ * {@code simple_npath.relativize(wildcard_npath)} is exactly "..",
+ * a simple {@code npath} is recursively inside a wildcard {@code npath}
+ * if and only if {@code simple_npath.relativize(wildcard_npath)} is a
+ * series of one or more "..". This means "/-" implies "/foo" but not "foo".
+ *
+ * An invalid {@code FilePermission} does not imply any object except for
+ * itself. An invalid {@code FilePermission} is not implied by any object
+ * except for itself or a {@code FilePermission} on
+ * {@literal "<
+ * When {@code jdk.io.permissionsUseCanonicalPath} is {@code false}, an
+ * invalid {@code FilePermission} does not equal to any object except
+ * for itself, even if they are created using the same invalid path.
+ *
+ * @param obj the object we are testing for equality with this object.
+ * @return
+ * FilePermission objects must be stored in a manner that allows them
+ * to be inserted into the collection in any order, but that also enables the
+ * PermissionCollection For example, if you have two FilePermissions:
+ * and you are calling the
+ *
+ * Runtime.exec to
+ * be called. Corresponds to SecurityManager.checkExec.
+ * File.delete to
+ * be called. Corresponds to SecurityManager.checkDelete.
+ * File.separatorChar)
+ * indicates all the files and directories contained in that directory.
+ * A pathname that ends with "/-" indicates (recursively) all files and
+ * subdirectories contained in that directory. The special pathname
+ * {@literal "<null, empty or contains an action
+ * other than the specified possible actions.
+ */
+ public FilePermission(String path, String actions) {
+ super(path);
+ init(getMask(actions));
+ }
+
+ /**
+ * Creates a new FilePermission object using an action mask.
+ * More efficient than the FilePermission(String, String) constructor.
+ * Can be used from within
+ * code that needs to create a FilePermission object to pass into the
+ * implies method.
+ *
+ * @param path the pathname of the file/directory.
+ * @param mask the action mask to use.
+ */
+ // package private for use by the FilePermissionCollection add method
+ FilePermission(String path, int mask) {
+ super(path);
+ init(mask);
+ }
+
+ /**
+ * Checks if this FilePermission object "implies" the specified permission.
+ *
+ *
+ *
+ *
+ * true if the specified permission is not
+ * null and is implied by this object,
+ * false otherwise.
+ */
+ @Override
+ public boolean implies(Permission p) {
+ if (!(p instanceof FilePermission))
+ return false;
+
+ FilePermission that = (FilePermission) p;
+
+ // we get the effective mask. i.e., the "and" of this and that.
+ // They must be equal to that.mask for implies to return true.
+
+ return ((this.mask & that.mask) == that.mask) && impliesIgnoreMask(that);
+ }
+
+ /**
+ * Checks if the Permission's actions are a proper subset of the
+ * this object's actions. Returns the effective mask iff the
+ * this FilePermission's path also implies that FilePermission's path.
+ *
+ * @param that the FilePermission to check against.
+ * @return the effective mask
+ */
+ boolean impliesIgnoreMask(FilePermission that) {
+ if (FilePermCompat.nb) {
+ if (this == that) {
+ return true;
+ }
+ if (allFiles) {
+ return true;
+ }
+ if (this.invalid || that.invalid) {
+ return false;
+ }
+ if (that.allFiles) {
+ return false;
+ }
+ // Left at least same level of wildness as right
+ if ((this.recursive && that.recursive) != that.recursive
+ || (this.directory && that.directory) != that.directory) {
+ return false;
+ }
+ // Same npath is good as long as both or neither are directories
+ if (this.npath.equals(that.npath)
+ && this.directory == that.directory) {
+ return true;
+ }
+ int diff = containsPath(this.npath, that.npath);
+ // Right inside left is good if recursive
+ if (diff >= 1 && recursive) {
+ return true;
+ }
+ // Right right inside left if it is element in set
+ if (diff == 1 && directory && !that.directory) {
+ return true;
+ }
+
+ // Hack: if a npath2 field exists, apply the same checks
+ // on it as a fallback.
+ if (this.npath2 != null) {
+ if (this.npath2.equals(that.npath)
+ && this.directory == that.directory) {
+ return true;
+ }
+ diff = containsPath(this.npath2, that.npath);
+ if (diff >= 1 && recursive) {
+ return true;
+ }
+ if (diff == 1 && directory && !that.directory) {
+ return true;
+ }
+ }
+
+ return false;
+ } else {
+ if (this.directory) {
+ if (this.recursive) {
+ // make sure that.path is longer then path so
+ // something like /foo/- does not imply /foo
+ if (that.directory) {
+ return (that.cpath.length() >= this.cpath.length()) &&
+ that.cpath.startsWith(this.cpath);
+ } else {
+ return ((that.cpath.length() > this.cpath.length()) &&
+ that.cpath.startsWith(this.cpath));
+ }
+ } else {
+ if (that.directory) {
+ // if the permission passed in is a directory
+ // specification, make sure that a non-recursive
+ // permission (i.e., this object) can't imply a recursive
+ // permission.
+ if (that.recursive)
+ return false;
+ else
+ return (this.cpath.equals(that.cpath));
+ } else {
+ int last = that.cpath.lastIndexOf(File.separatorChar);
+ if (last == -1)
+ return false;
+ else {
+ // this.cpath.equals(that.cpath.substring(0, last+1));
+ // Use regionMatches to avoid creating new string
+ return (this.cpath.length() == (last + 1)) &&
+ this.cpath.regionMatches(0, that.cpath, 0, last + 1);
+ }
+ }
+ }
+ } else if (that.directory) {
+ // if this is NOT recursive/wildcarded,
+ // do not let it imply a recursive/wildcarded permission
+ return false;
+ } else {
+ return (this.cpath.equals(that.cpath));
+ }
+ }
+ }
+
+ /**
+ * Returns the depth between an outer path p1 and an inner path p2. -1
+ * is returned if
+ *
+ * - p1 does not contains p2.
+ * - this is not decidable. For example, p1="../x", p2="y".
+ * - the depth is not decidable. For example, p1="/", p2="x".
+ *
+ * This method can return 2 if the depth is greater than 2.
+ *
+ * @param p1 the expected outer path, normalized
+ * @param p2 the expected inner path, normalized
+ * @return the depth in between
+ */
+ private static int containsPath(Path p1, Path p2) {
+
+ // Two paths must have the same root. For example,
+ // there is no contains relation between any two of
+ // "/x", "x", "C:/x", "C:x", and "//host/share/x".
+ if (!Objects.equals(p1.getRoot(), p2.getRoot())) {
+ return -1;
+ }
+
+ // Empty path (i.e. "." or "") is a strange beast,
+ // because its getNameCount()==1 but getName(0) is null.
+ // It's better to deal with it separately.
+ if (p1.equals(EMPTY_PATH)) {
+ if (p2.equals(EMPTY_PATH)) {
+ return 0;
+ } else if (p2.getName(0).equals(DOTDOT_PATH)) {
+ // "." contains p2 iif p2 has no "..". Since a
+ // a normalized path can only have 0 or more
+ // ".." at the beginning. We only need to look
+ // at the head.
+ return -1;
+ } else {
+ // and the distance is p2's name count. i.e.
+ // 3 between "." and "a/b/c".
+ return p2.getNameCount();
+ }
+ } else if (p2.equals(EMPTY_PATH)) {
+ int c1 = p1.getNameCount();
+ if (!p1.getName(c1 - 1).equals(DOTDOT_PATH)) {
+ // "." is inside p1 iif p1 is 1 or more "..".
+ // For the same reason above, we only need to
+ // look at the tail.
+ return -1;
+ }
+ // and the distance is the count of ".."
+ return c1;
+ }
+
+ // Good. No more empty paths.
+
+ // Common heads are removed
+
+ int c1 = p1.getNameCount();
+ int c2 = p2.getNameCount();
+
+ int n = Math.min(c1, c2);
+ int i = 0;
+ while (i < n) {
+ if (!p1.getName(i).equals(p2.getName(i)))
+ break;
+ i++;
+ }
+
+ // for p1 containing p2, p1 must be 0-or-more "..",
+ // and p2 cannot have "..". For the same reason, we only
+ // check tail of p1 and head of p2.
+ if (i < c1 && !p1.getName(c1 - 1).equals(DOTDOT_PATH)) {
+ return -1;
+ }
+
+ if (i < c2 && p2.getName(i).equals(DOTDOT_PATH)) {
+ return -1;
+ }
+
+ // and the distance is the name counts added (after removing
+ // the common heads).
+
+ // For example: p1 = "../../..", p2 = "../a".
+ // After removing the common heads, they become "../.." and "a",
+ // and the distance is (3-1)+(2-1) = 3.
+ return c1 - i + c2 - i;
+ }
+
+ /**
+ * Checks two FilePermission objects for equality. Checks that obj is
+ * a FilePermission, and has the same pathname and actions as this object.
+ *
+ * @implNote More specifically, two pathnames are the same if and only if
+ * they have the same wildcard flag and their {@code cpath}
+ * (if {@code jdk.io.permissionsUseCanonicalPath} is {@code true}) or
+ * {@code npath} (if {@code jdk.io.permissionsUseCanonicalPath}
+ * is {@code false}) are equal. Or they are both {@literal "<true if obj is a FilePermission, and has the same
+ * pathname and actions as this FilePermission object,
+ * false otherwise.
+ */
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this)
+ return true;
+
+ if (! (obj instanceof FilePermission))
+ return false;
+
+ FilePermission that = (FilePermission) obj;
+
+ if (FilePermCompat.nb) {
+ if (this.invalid || that.invalid) {
+ return false;
+ }
+ return (this.mask == that.mask) &&
+ (this.allFiles == that.allFiles) &&
+ this.npath.equals(that.npath) &&
+ Objects.equals(npath2, that.npath2) &&
+ (this.directory == that.directory) &&
+ (this.recursive == that.recursive);
+ } else {
+ return (this.mask == that.mask) &&
+ this.cpath.equals(that.cpath) &&
+ (this.directory == that.directory) &&
+ (this.recursive == that.recursive);
+ }
+ }
+
+ /**
+ * Returns the hash code value for this object.
+ *
+ * @return a hash code value for this object.
+ */
+ @Override
+ public int hashCode() {
+ if (FilePermCompat.nb) {
+ return Objects.hash(
+ mask, allFiles, directory, recursive, npath, npath2, invalid);
+ } else {
+ return 0;
+ }
+ }
+
+ /**
+ * Converts an actions String to an actions mask.
+ *
+ * @param actions the action string.
+ * @return the actions mask.
+ */
+ private static int getMask(String actions) {
+ int mask = NONE;
+
+ // Null action valid?
+ if (actions == null) {
+ return mask;
+ }
+
+ // Use object identity comparison against known-interned strings for
+ // performance benefit (these values are used heavily within the JDK).
+ if (actions == SecurityConstants.FILE_READ_ACTION) {
+ return READ;
+ } else if (actions == SecurityConstants.FILE_WRITE_ACTION) {
+ return WRITE;
+ } else if (actions == SecurityConstants.FILE_EXECUTE_ACTION) {
+ return EXECUTE;
+ } else if (actions == SecurityConstants.FILE_DELETE_ACTION) {
+ return DELETE;
+ } else if (actions == SecurityConstants.FILE_READLINK_ACTION) {
+ return READLINK;
+ }
+
+ char[] a = actions.toCharArray();
+
+ int i = a.length - 1;
+ if (i < 0)
+ return mask;
+
+ while (i != -1) {
+ char c;
+
+ // skip whitespace
+ while ((i!=-1) && ((c = a[i]) == ' ' ||
+ c == '\r' ||
+ c == '\n' ||
+ c == '\f' ||
+ c == '\t'))
+ i--;
+
+ // check for the known strings
+ int matchlen;
+
+ if (i >= 3 && (a[i-3] == 'r' || a[i-3] == 'R') &&
+ (a[i-2] == 'e' || a[i-2] == 'E') &&
+ (a[i-1] == 'a' || a[i-1] == 'A') &&
+ (a[i] == 'd' || a[i] == 'D'))
+ {
+ matchlen = 4;
+ mask |= READ;
+
+ } else if (i >= 4 && (a[i-4] == 'w' || a[i-4] == 'W') &&
+ (a[i-3] == 'r' || a[i-3] == 'R') &&
+ (a[i-2] == 'i' || a[i-2] == 'I') &&
+ (a[i-1] == 't' || a[i-1] == 'T') &&
+ (a[i] == 'e' || a[i] == 'E'))
+ {
+ matchlen = 5;
+ mask |= WRITE;
+
+ } else if (i >= 6 && (a[i-6] == 'e' || a[i-6] == 'E') &&
+ (a[i-5] == 'x' || a[i-5] == 'X') &&
+ (a[i-4] == 'e' || a[i-4] == 'E') &&
+ (a[i-3] == 'c' || a[i-3] == 'C') &&
+ (a[i-2] == 'u' || a[i-2] == 'U') &&
+ (a[i-1] == 't' || a[i-1] == 'T') &&
+ (a[i] == 'e' || a[i] == 'E'))
+ {
+ matchlen = 7;
+ mask |= EXECUTE;
+
+ } else if (i >= 5 && (a[i-5] == 'd' || a[i-5] == 'D') &&
+ (a[i-4] == 'e' || a[i-4] == 'E') &&
+ (a[i-3] == 'l' || a[i-3] == 'L') &&
+ (a[i-2] == 'e' || a[i-2] == 'E') &&
+ (a[i-1] == 't' || a[i-1] == 'T') &&
+ (a[i] == 'e' || a[i] == 'E'))
+ {
+ matchlen = 6;
+ mask |= DELETE;
+
+ } else if (i >= 7 && (a[i-7] == 'r' || a[i-7] == 'R') &&
+ (a[i-6] == 'e' || a[i-6] == 'E') &&
+ (a[i-5] == 'a' || a[i-5] == 'A') &&
+ (a[i-4] == 'd' || a[i-4] == 'D') &&
+ (a[i-3] == 'l' || a[i-3] == 'L') &&
+ (a[i-2] == 'i' || a[i-2] == 'I') &&
+ (a[i-1] == 'n' || a[i-1] == 'N') &&
+ (a[i] == 'k' || a[i] == 'K'))
+ {
+ matchlen = 8;
+ mask |= READLINK;
+
+ } else {
+ // parse error
+ throw new IllegalArgumentException(
+ "invalid permission: " + actions);
+ }
+
+ // make sure we didn't just match the tail of a word
+ // like "ackbarfaccept". Also, skip to the comma.
+ boolean seencomma = false;
+ while (i >= matchlen && !seencomma) {
+ switch(a[i-matchlen]) {
+ case ',':
+ seencomma = true;
+ break;
+ case ' ': case '\r': case '\n':
+ case '\f': case '\t':
+ break;
+ default:
+ throw new IllegalArgumentException(
+ "invalid permission: " + actions);
+ }
+ i--;
+ }
+
+ // point i at the location of the comma minus one (or -1).
+ i -= matchlen;
+ }
+
+ return mask;
+ }
+
+ /**
+ * Return the current action mask. Used by the FilePermissionCollection.
+ *
+ * @return the actions mask.
+ */
+ int getMask() {
+ return mask;
+ }
+
+ /**
+ * Return the canonical string representation of the actions.
+ * Always returns present actions in the following order:
+ * read, write, execute, delete, readlink.
+ *
+ * @return the canonical string representation of the actions.
+ */
+ private static String getActions(int mask) {
+ StringJoiner sj = new StringJoiner(",");
+
+ if ((mask & READ) == READ) {
+ sj.add("read");
+ }
+ if ((mask & WRITE) == WRITE) {
+ sj.add("write");
+ }
+ if ((mask & EXECUTE) == EXECUTE) {
+ sj.add("execute");
+ }
+ if ((mask & DELETE) == DELETE) {
+ sj.add("delete");
+ }
+ if ((mask & READLINK) == READLINK) {
+ sj.add("readlink");
+ }
+
+ return sj.toString();
+ }
+
+ /**
+ * Returns the "canonical string representation" of the actions.
+ * That is, this method always returns present actions in the following order:
+ * read, write, execute, delete, readlink. For example, if this FilePermission
+ * object allows both write and read actions, a call to getActions
+ * will return the string "read,write".
+ *
+ * @return the canonical string representation of the actions.
+ */
+ @Override
+ public String getActions() {
+ if (actions == null)
+ actions = getActions(this.mask);
+
+ return actions;
+ }
+
+ /**
+ * Returns a new PermissionCollection object for storing FilePermission
+ * objects.
+ * implies
+ * method to be implemented in an efficient (and consistent) manner.
+ *
+ *
+ *
+ *
+ * "/tmp/-", "read"
+ * "/tmp/scratch/foo", "write"
+ * implies method with the FilePermission:
+ *
+ *
+ * "/tmp/scratch/foo", "read,write",
+ *
+ *
+ * then the implies function must
+ * take into account both the "/tmp/-" and "/tmp/scratch/foo"
+ * permissions, so the effective permission is "read,write",
+ * and implies returns true. The "implies" semantics for
+ * FilePermissions are handled properly by the PermissionCollection object
+ * returned by this newPermissionCollection method.
+ *
+ * @return a new PermissionCollection object suitable for storing
+ * FilePermissions.
+ */
+ @Override
+ public PermissionCollection newPermissionCollection() {
+ return new FilePermissionCollection();
+ }
+
+ /**
+ * WriteObject is called to save the state of the FilePermission
+ * to a stream. The actions are serialized, and the superclass
+ * takes care of the name.
+ */
+ private void writeObject(ObjectOutputStream s)
+ throws IOException
+ {
+ // Write out the actions. The superclass takes care of the name
+ // call getActions to make sure actions field is initialized
+ if (actions == null)
+ getActions();
+ s.defaultWriteObject();
+ }
+
+ /**
+ * readObject is called to restore the state of the FilePermission from
+ * a stream.
+ */
+ private void readObject(ObjectInputStream s)
+ throws IOException, ClassNotFoundException
+ {
+ // Read in the actions, then restore everything else by calling init.
+ s.defaultReadObject();
+ init(getMask(actions));
+ }
+
+ /**
+ * Create a cloned FilePermission with a different actions.
+ * @param effective the new actions
+ * @return a new object
+ */
+ FilePermission withNewActions(int effective) {
+ return new FilePermission(this.getName(),
+ this,
+ this.npath,
+ this.npath2,
+ effective,
+ null);
+ }
+}
+
+/**
+ * A FilePermissionCollection stores a set of FilePermission permissions.
+ * FilePermission objects
+ * must be stored in a manner that allows them to be inserted in any
+ * order, but enable the implies function to evaluate the implies
+ * method.
+ * For example, if you have two FilePermissions:
+ *
+ *
+ * And you are calling the implies function with the FilePermission:
+ * "/tmp/scratch/foo", "read,write", then the implies function must
+ * take into account both the /tmp/- and /tmp/scratch/foo
+ * permissions, so the effective permission is "read,write".
+ *
+ * @see java.security.Permission
+ * @see java.security.Permissions
+ * @see java.security.PermissionCollection
+ *
+ *
+ * @author Marianne Mueller
+ * @author Roland Schemers
+ *
+ * @serial include
+ *
+ */
+
+final class FilePermissionCollection extends PermissionCollection
+ implements Serializable
+{
+ // Not serialized; see serialization section at end of class
+ private transient ConcurrentHashMap