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8157613: Internal documentation improvements to ZipFile.java

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Reviewed-by: plevart, sherman
This commit is contained in:
Martin Buchholz 2016-05-23 12:44:55 -07:00
parent 7be8e94544
commit d1d3cba9db
1 changed files with 14 additions and 14 deletions
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28
jdk/src/java.base/share/classes/java/util/zip/ZipFile.java
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@ -808,11 +808,10 @@ class ZipFile implements ZipConstants, Closeable {
}
/**
* Returns an array of strings representing the names of all entries
* that begin with "META-INF/" (case ignored). This method is used
* in JarFile, via SharedSecrets, as an optimization when looking up
* manifest and signature file entries. Returns null if no entries
* were found.
* Returns the names of all non-directory entries that begin with
* "META-INF/" (case ignored). This method is used in JarFile, via
* SharedSecrets, as an optimization when looking up manifest and
* signature file entries. Returns null if no entries were found.
*/
private String[] getMetaInfEntryNames() {
synchronized (this) {
@ -1304,18 +1303,19 @@ class ZipFile implements ZipConstants, Closeable {
&& (name[off] ) == '/';
}
/*
* Counts the number of CEN headers in a central directory extending
* from BEG to END. Might return a bogus answer if the zip file is
* corrupt, but will not crash.
/**
* Returns the number of CEN headers in a central directory.
* Will not throw, even if the zip file is corrupt.
*
* @param cen copy of the bytes in a zip file's central directory
* @param size number of bytes in central directory
*/
static int countCENHeaders(byte[] cen, int end) {
private static int countCENHeaders(byte[] cen, int size) {
int count = 0;
int pos = 0;
while (pos + CENHDR <= end) {
for (int p = 0;
p + CENHDR <= size;
p += CENHDR + CENNAM(cen, p) + CENEXT(cen, p) + CENCOM(cen, p))
count++;
pos += (CENHDR + CENNAM(cen, pos) + CENEXT(cen, pos) + CENCOM(cen, pos));
}
return count;
}
}