Bug#850233: mavibot: FTBFS randomly (sbuild hangs)

[Santiago Vila]

Package: src:mavibot
Version: 1.0.0~M1-2
Severity: important

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
(which is what the "Arch: all" autobuilder would do to build it)
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep
   dh_testdir -i
   dh_update_autotools_config -i
   dh_autoreconf -i
   dh_auto_configure -i
find: '/usr/share/maven-repo/org/codehaus/plexus/plexus-compiler/*/*.jar': No such file or directory
find: '/usr/share/maven-repo/org/codehaus/plexus/plexus-compilers/*/*.jar': No such file or directory
find: '/usr/share/maven-repo/org/codehaus/plexus/plexus-containers/*/*.jar': No such file or directory
	mh_patchpoms -plibmavibot-java --debian-build --keep-pom-version --maven-repo=/<<BUILDDIR>>/mavibot-1.0.0\~M1/debian/maven-repo
   dh_auto_build -i
	/usr/lib/jvm/default-java/bin/java -noverify -cp /usr/share/maven/boot/plexus-classworlds-2.x.jar:/usr/lib/jvm/default-java/lib/tools.jar -Dmaven.home=/usr/share/maven -Dmaven.multiModuleProjectDirectory=/<<BUILDDIR>>/mavibot-1.0.0\~M1 -Dclassworlds.conf=/etc/maven/m2-debian.conf -Dproperties.file.manual=/<<BUILDDIR>>/mavibot-1.0.0\~M1/debian/maven.properties org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/<<BUILDDIR>>/mavibot-1.0.0\~M1/debian -Dmaven.repo.local=/<<BUILDDIR>>/mavibot-1.0.0\~M1/debian/maven-repo package -DskipTests -Dnotimestamp=true -Dlocale=en_US
[INFO] Scanning for projects...

[... snipped ...]

Written 60000 elements in : 1018ms
Written 70000 elements in : 1057ms
Written 80000 elements in : 1068ms
Written 90000 elements in : 1111ms
Delta : 11530, nbError = 0, Nb insertion per second : 8000
6MB
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 11.88 sec - in org.apache.directory.mavibot.btree.RecordManagerFreePageTest
Running org.apache.directory.mavibot.btree.BTreeConfigurationTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.048 sec - in org.apache.directory.mavibot.btree.BTreeConfigurationTest
Running org.apache.directory.mavibot.btree.comparator.ByteArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec - in org.apache.directory.mavibot.btree.comparator.ByteArrayComparatorTest
Running org.apache.directory.mavibot.btree.comparator.ShortArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.01 sec - in org.apache.directory.mavibot.btree.comparator.ShortArrayComparatorTest
Running org.apache.directory.mavibot.btree.comparator.BooleanComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec - in org.apache.directory.mavibot.btree.comparator.BooleanComparatorTest
Running org.apache.directory.mavibot.btree.comparator.CharArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.012 sec - in org.apache.directory.mavibot.btree.comparator.CharArrayComparatorTest
Running org.apache.directory.mavibot.btree.comparator.ShortComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec - in org.apache.directory.mavibot.btree.comparator.ShortComparatorTest
Running org.apache.directory.mavibot.btree.comparator.LongComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec - in org.apache.directory.mavibot.btree.comparator.LongComparatorTest
Running org.apache.directory.mavibot.btree.comparator.BooleanArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec - in org.apache.directory.mavibot.btree.comparator.BooleanArrayComparatorTest
Running org.apache.directory.mavibot.btree.comparator.ByteComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 sec - in org.apache.directory.mavibot.btree.comparator.ByteComparatorTest
Running org.apache.directory.mavibot.btree.comparator.RevisionNameComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec - in org.apache.directory.mavibot.btree.comparator.RevisionNameComparatorTest
Running org.apache.directory.mavibot.btree.comparator.LongArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.01 sec - in org.apache.directory.mavibot.btree.comparator.LongArrayComparatorTest
Running org.apache.directory.mavibot.btree.comparator.StringComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec - in org.apache.directory.mavibot.btree.comparator.StringComparatorTest
Running org.apache.directory.mavibot.btree.comparator.CharComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in org.apache.directory.mavibot.btree.comparator.CharComparatorTest
Running org.apache.directory.mavibot.btree.comparator.IntComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in org.apache.directory.mavibot.btree.comparator.IntComparatorTest
Running org.apache.directory.mavibot.btree.comparator.IntArrayComparatorTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in org.apache.directory.mavibot.btree.comparator.IntArrayComparatorTest
Running org.apache.directory.mavibot.btree.MultiThreadedBtreeTest
 Time to create 1M entries : 4 seconds
Written 0 elements
Written 100000 elements
Written 200000 elements
Written 300000 elements
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Thread-102"
E: Build killed with signal TERM after 60 minutes of inactivity
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This is just how the build ends, not necessarily the relevant part.

I've put several build logs here:

https://people.debian.org/~sanvila/build-logs/mavibot/

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the page for this package.

I don't know how to reproduce this, sorry, but it happened at least twice to me.
If you try to reproduce it, please try many times.

Thanks.