Use correct default date-format, add some tests

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66381

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1917070 13f79535-47bb-0310-9956-ffa450edef68

Prevent a NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66386

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1917069 13f79535-47bb-0310-9956-ffa450edef68

Prevent a few NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66400

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1917068 13f79535-47bb-0310-9956-ffa450edef68

Prevent NullPointerException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64212

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915006 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 ClassCastException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63736

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1915003 13f79535-47bb-0310-9956-ffa450edef68

Prevent ClassCastException

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63504

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914991 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

Newer JDKs add a more useful exception message, so we need to be a bit more
lenient for these in integration tests

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914708 13f79535-47bb-0310-9956-ffa450edef68

Avoid a ClassCastException and trigger some more
code in integration-testing.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63358

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914404 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

Add an xsb file to ooxml-lite which seems to be
missing in some cases

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63652

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914402 13f79535-47bb-0310-9956-ffa450edef68

Capture and report integer overflow as normal
parsing/format exceptions

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63628

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1914401 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=63142

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1913385 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

Enable running "extract" also for OPCFileHandler
Add additional expected failures in stress.xls

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912933 13f79535-47bb-0310-9956-ffa450edef68

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

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912804 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912800 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing ConcurrentModificationException,
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=62861

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912797 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 NullPointerExceptions or endless allocations,
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=62745

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912795 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerExceptions or endless allocations,
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=62706

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912794 13f79535-47bb-0310-9956-ffa450edef68

We try to avoid throwing NullPointerExceptions or endless allocations,
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=62697

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912793 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

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

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

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912406 13f79535-47bb-0310-9956-ffa450edef68

It was processing fine on some JVM versions, but failed with an error on others.
Seems there is a difference in XmlParsers across versions of the JVM.

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912404 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

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

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912281 13f79535-47bb-0310-9956-ffa450edef68

Ignore results of one file because the Exception is different in Java 8 and Java 11

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912254 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=62170

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912252 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=62208

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912251 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

The actual message depends on the version of Java

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912200 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

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=62151

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912198 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 add SXSSFWorkbook.write() to integrationtests

Fixes https://oss-fuzz.com/testcase-detail/5185049589579776

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912162 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

Fixes https://oss-fuzz.com/testcase-detail/4959857092198400

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912157 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

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912139 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

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912138 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=62059

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912127 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=62074

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1912125 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=61441

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911890 13f79535-47bb-0310-9956-ffa450edef68

ArrayIndexOutOfBoundsException has different message depending on JDK

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911864 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=61520

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911863 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=61390

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911615 13f79535-47bb-0310-9956-ffa450edef68