APAR status
Closed as program error.
Error description
Error Message: Multiple threads reading a zip file using the ZipFile API can cause a JVM crash. . Stack Trace: Native stack: ZIP_Read () (libzip.so) Java_java_util_zip_ZipFile_read () (libzip.so) Java stack: java/util/zip/ZipFile.read(Native Method) java/util/zip/ZipFile.access$1200(ZipFile.java:47(Compiled Code)) java/util/zip/ZipFile$ZipFileInputStream.read(ZipFile.java:501() java/util/zip/ZipFile$1.fill(ZipFile.java:269(Compiled Code)) java/util/zip/InflaterInputStream.read(InflaterInputStream.java: 152()java/util/zip/InflaterInputStream.read(InflaterInputStream. java:116() . This error may be intermittent in nature.
Local fix
Problem summary
In a multi-threaded environment, accessing the same Zipfile by multiple threads can result in a crash if one thread tries to read a stream which is just closed by another thread. The streams in Zipfile is not thread safe and it is application responsibility to ensure the thread safety. However, it is better to avoid a crash.
Problem conclusion
This defect will be fixed in: 6.0.0 SR16 6.0.1 SR8 7.0.0 SR7 7.1.0 SR1 . The JDK has been updated to introduce a validation to check whether the stream is already closed before reading the stream.
Temporary fix
Comments
APAR Information
APAR number
IV53349
Reported component name
JAVA CLASS LIBS
Reported component ID
620700130
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-12-16
Closed date
2014-02-27
Last modified date
2014-04-30
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
JAVA CLASS LIBS
Fixed component ID
620700130
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
Document Information
Modified date:
14 December 2020