[Bug 3166] New: invalid zip timestamp handling leads to error building bootstrap-javac

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=3166

            Bug ID: 3166
           Summary: invalid zip timestamp handling leads to error building
                    bootstrap-javac
           Product: IcedTea
           Version: 7-hg
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: IcedTea
          Assignee: gnu.andrew at redhat.com
          Reporter: ricardo.ribalda at gmail.com
                CC: unassigned at icedtea.classpath.org

Created attachment 1558
  --> http://icedtea.classpath.org/bugzilla/attachment.cgi?id=1558&action=edit
Patch that fixes the error

Under some circumstances, the bootstrap error fails with the following
error:


    build-bootstrap-javac:
            [javac] Compiling 1 source file to
/fast/build/ostro/x86/tmp-glibc/work/x86_64-linux/icedtea7-native/2.1.3-r1.0/icedtea-2.1.3/build/openjdk.build-boot/langtools/build/bootstrap/classes
            [javac] ----------
            [javac] 1. ERROR in
/fast/build/ostro/x86/tmp-glibc/work/x86_64-linux/icedtea7-native/2.1.3-r1.0/icedtea-2.1.3/build/openjdk-boot/langtools/src/share/classes/com/sun/tools/javac/file/ZipFileIndex.java
(at line 1169)
            [javac]     super(message, cause);
            [javac]     ^^^^^^^^^^^^^^^^^^^^^^
            [javac] The constructor IOException(String, Throwable) is undefined
            [javac] ----------
            [javac] 1 problem (1 error)

        BUILD FAILED
       
/fast/build/ostro/x86/tmp-glibc/work/x86_64-linux/icedtea7-native/2.1.3-r1.0/icedtea-2.1.3/build/openjdk-boot/langtools/make/build.xml:446:
The following error occurred while executing this line:
       
/fast/build/ostro/x86/tmp-glibc/work/x86_64-linux/icedtea7-native/2.1.3-r1.0/icedtea-2.1.3/build/openjdk-boot/langtools/make/build.xml:789:
Compile failed; see the compiler error output for details.

        Total time: 2 seconds
        Makefile:201: recipe for target 'build' failed


The reason for that error is that rt.jar does not contain the openjdk
classes but the ones from classpath 0.99.

The error eventually goes away after a couple of hours :S.

After some tedious debug, I figured out that the problem was the
timestamp handling of zip/unzip.

The Makefile launches zip with the following options:

$(ZIP) -qur

which only updates the content of the classes that have a timestamp
older than the new ones.

According to zip manpage:
"""
Note that under many operating systems, the TZ (timezone) environment
variable must be set correctly in order for -f and -u to work properly
"""
On this patch, I remove the -u option from zip, always replacing the
classes inside rt.jar with the classes from openjdk. I cannot think of
an scenario where this may fail.


This error has also been spotted by other users:

https://www.mail-archive.com/openembedded-devel@lists.openembedded.org/msg48464.html

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