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Posted to dev@poi.apache.org by bu...@apache.org on 2018/03/02 05:55:09 UTC
[Bug 62151] New: Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Bug ID: 62151
Summary: Illegal reflective access by
org.apache.poi.util.DocumentHelper and
org.apache.poi.util is accessible from more than one
module
Product: POI
Version: 3.17-FINAL
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: XWPF
Assignee: dev@poi.apache.org
Reporter: bvdhel@orangewater.nl
Target Milestone: ---
Dear,
Got two problems working with Apache Poi 3.17 first is in the jar-files
The package org.apache.poi.util is accessible from more than one module: poi,
poi.ooxml
And this next one, during running the application making the reports
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.poi.util.DocumentHelper
(file:/C:/Java/poi/poi-bin-3.17-20170915/poi-3.17/poi-ooxml-3.17.jar) to method
com.sun.org.apache.xerces.internal.util.SecurityManager.setEntityExpansionLimit(int)
WARNING: Please consider reporting this to the maintainers of
org.apache.poi.util.DocumentHelper
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
Regards,
Bart E.
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEEDINFO |RESOLVED
--- Comment #11 from Dominik Stadler <do...@gmx.at> ---
In r1854630 we now try to avoid this illegal reflective access via an approach
taken from Apache Hadoop, it should now work for Java <=8 and Java >=9 via two
different approaches.
As this bug is mostly about the illegal reflective access, I think it can be
closed. Having conflicting packages was already solved in a different issue.
Providing full modules will need to be handled elsewhere.
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #8 from Dominik Stadler <do...@gmx.at> ---
From duplicated bug:
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by
org.apache.poi.poifs.nio.FileBackedDataSource$1 (file:/name_of_Jar_file) to
method java.nio.DirectByteBuffer.cleaner()
WARNING: Please consider reporting this to the maintainers of
org.apache.poi.poifs.nio.FileBackedDataSource$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Bug 62151 depends on bug 62355, which changed state.
Bug 62355 Summary: Unsplit packages to conform Jigsaw (Java 9) module standard
https://bz.apache.org/bugzilla/show_bug.cgi?id=62355
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #9 from Andreas Beeker <ki...@apache.org> ---
For 4.x I'm quite sure that we don't go for full Jigsaw compatibility - but
automatic modules aren't that bad in my point of view.
Regarding the first issue of the original op, this will be covered in #62355
and see also my sketchy plan for Jigsaw compatibility there.
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #4 from Axel Howind <ax...@dua3.com> ---
@Dominic: It would be nice if 4.0 would not have automatic module names but
instead "real" modules (aka with a real module-info.java). Is there any chance
this could be achieved? I think I could easily do it in Gradle, but I am no
expert in Maven or Ant. If there's a chance to get this into 4.0, I'd try to
find some time to look into it anyway.
I am aware of Stephen Colebourne's blog post concerning JPMS
(http://blog.joda.org/2018/03/jpms-negative-benefits.html), but I think it
could be done in a way that solves most if not all of the issues he mentions
(i.e. compatibility with Java 8 and Android).
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #3 from James Pether Sörling <pe...@hack23.com> ---
(In reply to Nick Burch from comment #1)
> The former we're unlikely to fix - Apache POI has multiple jars which make
> up the project and allow you to exclude the parts of the project you don't
> want. Because of design decisions taken by the Java 9 jigsaw team, our only
> fix is to provide a single uber-jar with everything in. We're discussing
> that now, but you could easily build your own if you wanted in the mean time
Also have the same issue "The package org.apache.poi.X is accessible from more
than one module: poi, poi.ooxml"
Maybe it is time with the 4.0.0 release to make sure each jar do not contain
any overlapping packages. Understand it is bad to break compatibility for
existing 3.x releases.
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Nick Burch <ap...@gagravarr.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
OS| |All
--- Comment #1 from Nick Burch <ap...@gagravarr.org> ---
The former we're unlikely to fix - Apache POI has multiple jars which make up
the project and allow you to exclude the parts of the project you don't want.
Because of design decisions taken by the Java 9 jigsaw team, our only fix is to
provide a single uber-jar with everything in. We're discussing that now, but
you could easily build your own if you wanted in the mean time
The latter I don't know how we can fix. For security reasons, we need to tell
the built-in Java XML parser to turn on non-default settings to increase the
parsing security. I don't believe that there's a public API for doing that,
only the private ones.
Are you able to find any Java 9 advice on how to turn on the XML security
features with the built-in xml parser using only public calls in Java 9?
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #2 from Dominik Stadler <do...@gmx.at> ---
I think a first step will be Automatic-Module-Name in the MANIFEST.MF of the
jar-files, see
http://branchandbound.net/blog/java/2017/12/automatic-module-name/, need to
read up some more on this before starting on adding this, though.
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #5 from Dominik Stadler <do...@gmx.at> ---
It will require large code-refactorings to move everything into a separate
package and none of the third-party libs that Apache POI uses is currently
available as module, so as far as I see (don't know too much about Java 9 to be
honest) we cannot release a full Java 9 module until these are available as
modules, or?
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #6 from Alan Bateman <Al...@oracle.com> ---
The JAXP tutorial has a page on the processing limits that might be useful:
https://docs.oracle.com/javase/tutorial/jaxp/limits/limits.html
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Andreas Beeker <ki...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Hardware|PC |All
Component|XWPF |POI Overall
Depends on| |62355
Referenced Bugs:
https://bz.apache.org/bugzilla/show_bug.cgi?id=62355
[Bug 62355] Unsplit packages to conform Jigsaw (Java 9) module standard
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
--- Comment #10 from Dominik Stadler <do...@gmx.at> ---
FYI, jaxb in current versions also causes some warnings about reflective
access, we cannot fix those until jaxb >= 2.4.0 is available, see
https://stackoverflow.com/a/50251510/411846 for details, you can set a system
property "com.sun.xml.bind.v2.bytecode.ClassTailor.noOptimize" to avoid this
warning
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[Bug 62151] Illegal reflective access by
org.apache.poi.util.DocumentHelper and org.apache.poi.util is accessible
from more than one module
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62151
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kalakrishnan@gmail.com
--- Comment #7 from Dominik Stadler <do...@gmx.at> ---
*** Bug 62406 has been marked as a duplicate of this bug. ***
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