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8253952: Refine ZipOutputStream.putNextEntry() to recalculate ZipEntry's compressed size

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Reviewed-by: lancea, alanb
This commit is contained in:
Volker Simonis 2020-10-15 09:18:26 +00:00
parent 9359ff03ae
commit 60159cff40
4 changed files with 231 additions and 8 deletions
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11
src/java.base/share/classes/java/util/jar/JarOutputStream.java
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@ -76,8 +76,15 @@ public class JarOutputStream extends ZipOutputStream {
/**
* Begins writing a new JAR file entry and positions the stream
* to the start of the entry data. This method will also close
* any previous entry. The default compression method will be
* used if no compression method was specified for the entry.
* any previous entry.
* <p>
* The default compression method will be used if no compression
* method was specified for the entry. When writing a compressed
* (DEFLATED) entry, and the compressed size has not been explicitly
* set with the {@link ZipEntry#setCompressedSize(long)} method,
* then the compressed size will be set to the actual compressed
* size after deflation.
* <p>
* The current time will be used if the entry has no set modification
* time.
*