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  1. JDK
  2. JDK-4705373

new java.util.zip.ZipFile causes OutOfMemoryError for large zip files

    Details

      Description

      Name: nt126004 Date: 06/20/2002


      FULL PRODUCT VERSION :
      >java -version
      java version "1.4.0"
      Java(TM) 2 Runtime Environment, Standard Edition(build 1.4.0-b92)
      Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

      vm params:
      -
      server -Xmaxf.35 -Xminf.15 -Xmx600m

      FULL OPERATING SYSTEM VERSION :
      os: linux
      Distribution:
      redhat
      >uname -a
      Linux XXXX 2.4.18 #1 SMP Wed Apr 24 13:41:20 CEST 2002
      i686 unknown
      >rpm --query glibc
      glibc-2.1.2-11

      ADDITIONAL
      OPERATING SYSTEMS :



      A DESCRIPTION OF THE PROBLEM :
      Opening a large zip file (larger than specified -Xmx size) with

         new
      java.util.zip.ZipFile("large.zip")

      causes an
      OutOfMemoryError.

      It appears that the jvm is trying to mmap the entire file.

      Here is additional info from "strace -f java ...":

      The memory allocations fails in Sun 1.4 at

      open("test3.zip", O_RDONLY|O_LARGEFILE) = 5
      fstat64(5, {st_mode=S_IFREG|0644, st_size=2037717101, ...}) = 0
      _llseek(5, 0, [2037717101], SEEK_END) = 0
      old_mmap(NULL, 2037717101, PROT_READ, MAP_SHARED, 5, 0) = -1 ENOMEM (Cannot allocate memory)
      close(5) = 0
      write(2, "java.lang.OutOfMemoryError", 26

      The bytecount there is the size of my zipfile and I have no idea, why
      the Java-VM calls mmap(size_of_zipfile) there, which means it can only
      handle zipfiles which fit into system-memory.

      This was tested with different Java-VMs and a ZIP-file of 1.9 GB size.
      The results:

      Sun 1.3: works
      Sun 1.3.1 (release 2): fails, but works with -classic Option
      Sun 1.4.0: fails (no -classic option available)

      i.b.m.'s jre 1.3: works

      Blackdown 1.3: works
      Blackdown 1.3.1: fails, but works with -classic

      The call used was without any options: java LargeZipFile test.zip

      System:
      Pentium III
      Mem: 256 M
      Swap: 512 M

      Debian Linux (woody)
      Kernel 2.4.18
      libc-2.2.5
      libpthread-0.9




      REGRESSION. Last worked in version 1.3.1

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1. create a large zip file
      2. start test program


      EXPECTED VERSUS ACTUAL BEHAVIOR :
      expected:
          instantiation of a new ZipFile object
      actual result:
          
      OutOfMemoryError

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      >java -server -Xmaxf.35 -Xminf.15 -Xmx600m LargeZipFile large.zip
      totoal memory:
      2031616
      free memory: 1769520
      large.zip, size is 1412020128
      bytes
      java.lang.OutOfMemoryError
              at java.util.zip.ZipFile.open(Native Method)
              at
      java.util.zip.ZipFile.<init>(ZipFile.java:112)
              at
      java.util.zip.ZipFile.<init>(ZipFile.java:72)
              at
      LargeZipFile.main(LargeZipFile.java:7)

      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      public class LargeZipFile {
      public static void main(String[] args) {
      try {
      System.out.println("totoal memory: " +
      Runtime.getRuntime().totalMemory());
      System.out.println("free memory: " + Runtime.getRuntime().freeMemory());
      System.out.println(args[0] + ", size is " + new
      java.io.File(args[0]).length() + " bytes");
      new java.util.zip.ZipFile(args[0]);
      System.out.println("success");
      } catch (Throwable t) {
      t.printStackTrace();
      }
      }
      }
      ---------- END SOURCE ----------

      CUSTOMER WORKAROUND :
      No workaround possible.
      (Review ID: 145979)
      ======================================================================

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              • Assignee:
                bristor Dave Bristor
                Reporter:
                nthompsosunw Nathanael Thompson (Inactive)
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                  Updated:
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