[COMPRESS-568] NullPointerException in X5455_ExtendedTimestamp.getLocalFileDataData

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.20
• Fix Version/s: 1.21
• Assignee: Unassigned
• Reporter: Fabian Meumertzheim
• Created: 25/Feb/21 08:57
• Updated: 26/Feb/21 00:50
• Resolved: 26/Feb/21 00:50

Description

The following snippet of code throws an undeclared NullPointerException:

byte[] bytes = base64.getDecoder().decode("UEsDBAoACQAAAGu0ukYdiHewEwAAAAcAAAADABwAYWFhVVQDAAn5ygAAUEsFBgAAAAAC/////////0IAAAAABQAAUEsBAh4DCgAJAP8ABbS6RgAAAAAAIAAHAAAAAAAAAAAAAAABAABQSwUGAAAAAP///wU="); 
SeekableInMemoryByteChannel input = new SeekableInMemoryByteChannel(bytes); 
try { ZipFile file = new ZipFile(input); } catch (IOException ignored) {}

The stack trace is:

java.lang.NullPointerException: Cannot invoke "org.apache.commons.compress.archivers.zip.ZipLong.getBytes()" because "this.modifyTime" is null
	at org.apache.commons.compress.archivers.zip.X5455_ExtendedTimestamp.getLocalFileDataData(X5455_ExtendedTimestamp.java:180)
	at org.apache.commons.compress.archivers.zip.ExtraFieldUtils.mergeLocalFileDataData(ExtraFieldUtils.java:250)
	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.setExtra(ZipArchiveEntry.java:691)
	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.addExtraField(ZipArchiveEntry.java:573)
	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.mergeExtraFields(ZipArchiveEntry.java:903)
	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.setExtra(ZipArchiveEntry.java:676)
	at org.apache.commons.compress.archivers.zip.ZipFile.resolveLocalFileHeaderData(ZipFile.java:1237)
	at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:373)
	at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:318)
	at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:274)

I also attached the input as a ZIP file.