git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1918175 13f79535-47bb-0310-9956-ffa450edef68

This avoids "breaking" a few documents which could be opened before.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1918118 13f79535-47bb-0310-9956-ffa450edef68

Use NullOutputStream.INSTANCE
Rework one test slightly

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1918116 13f79535-47bb-0310-9956-ffa450edef68

- don't use foreign class in Logger initialization
- update log statements to use MessageFormat syntax

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915930 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915701 13f79535-47bb-0310-9956-ffa450edef68

Prevent a few NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65450 and
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63907 and
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63727

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915480 13f79535-47bb-0310-9956-ffa450edef68

Prevent NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64943

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915004 13f79535-47bb-0310-9956-ffa450edef68

Prevent StackOverflow via endless nesting

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65303

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914989 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914785 13f79535-47bb-0310-9956-ffa450edef68

Change an assertion which can be triggered via an
input-document.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63309

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914403 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1913795 13f79535-47bb-0310-9956-ffa450edef68

Fix one expected exception-text which is different
on newer Java versions

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63143

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1913384 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1913004 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastExceptions,
but it was possible to trigger one here with a specially
crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62795

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912796 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62626

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912792 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, ClassCastExceptions 
and StackOverflowException, but it was possible to trigger them

Also improve some exception messages

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62698
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62606
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62685

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912707 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912638 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, ClassCastExceptions and StackOverflowException, but it was possible
to trigger them

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62548 and https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62564

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912464 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912438 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, ClassCastExceptions and StackOverflowException, but it was possible
to trigger them

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62530 and https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62491

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912433 13f79535-47bb-0310-9956-ffa450edef68

Otherwise this still triggered StackOverflow on some version of JDK

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912403 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, ClassCastExceptions and StackOverflowException, but it was possible
to trigger them

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61562
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62068

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912383 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912367 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException and ClassCastExceptions, but it was possible
to trigger them

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62414
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62442
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62450

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912365 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62216

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912250 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62128

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912199 13f79535-47bb-0310-9956-ffa450edef68

Without Isolation, one test did change static settings 
and thus could cause flaky tests

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911891 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61578

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911860 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61400

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911618 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61372

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911603 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61330

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911586 13f79535-47bb-0310-9956-ffa450edef68

Handle some data that can be missing properly.

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61332

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911585 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid causing StackOverflow, but it was possible
to trigger one here with a specially crafted input-file.

This puts a limit on the number of nested children in place
and logs a warning when the Stream is not fully parsed.

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61256

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911577 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61306

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911573 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61317

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911565 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid causing StackOverflow, but it was possible
to trigger one here with a specially crafted input-file.

This puts a limit on the number of nested properties in place
and logs a warning when the StyleSheet is not fully parsed.

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61252

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911563 13f79535-47bb-0310-9956-ffa450edef68

We try to generally avoid overly large allocations in places
where arrays are allocated. 

We add one more such check for pictures in HSLF.

We might need to increase the used value of 10MB if users report 
larger files being used frequently. 

Overriding this check via IOUtils is possible.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911525 13f79535-47bb-0310-9956-ffa450edef68

Fix previous changes

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911522 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61259

Also fix handling of NullPointerException

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911517 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing AssertionError to be triggered by input data, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61251

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911514 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61243

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911507 13f79535-47bb-0310-9956-ffa450edef68

Add exception details and fix expected exceptions to make tests run again

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911503 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException, but it was possible
to trigger one here with a specially crafted input-file

Also rework test a bit to use try-with-resources and proper formatting

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61221

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911494 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ClassCastException but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61162

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911459 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1910659 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1910627 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1910300 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1908529 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1908515 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1908483 13f79535-47bb-0310-9956-ffa450edef68