Debug java tests

(00.062248) Handling VMA with the following smaps entry: 7fc5dda00000-7fc5ddc00000 rw-s 00000000 00:32 11413275                   /criu/test/javaTests/omrvmem_000000626_Mlm48x (deleted)
(00.062297) Found regular file mapping, OK
(00.062353) Dumping path for -3 fd via self 12 [/criu/test/javaTests/omrvmem_000000626_Mlm48x (deleted)]
(00.062358) Strip ' (deleted)' tag from './criu/test/javaTests/omrvmem_000000626_Mlm48x (deleted)'
(00.062360) Dumping ghost file for fd 12 id 0x2
(00.062363) Error (criu/files-reg.c:1031): Can't dump ghost file /criu/test/javaTests/omrvmem_000000626_Mlm48x of 2097152 size, increase limit
(00.062374) Error (criu/cr-dump.c:1570): Collect mappings (pid: 626) failed with -1

scripts/build/Dockerfile.openj9-ubuntu

@@ -24,9 +24,10 @@ RUN apt-install protobuf-c-compiler \
 	gcc \
 	maven
 
+RUN mkdir -p /etc/criu && echo 'ghost-limit 16777216' > /etc/criu/default.conf
 COPY . /criu
 WORKDIR /criu
 
 RUN make mrproper && make -j $(nproc) CC="$CC"
 
-ENTRYPOINT mvn -q -f test/javaTests/pom.xml test
+ENTRYPOINT mvn -f test/javaTests/pom.xml test

scripts/ci/java-test.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -x
+
 cd ../.. || exit 1
 
 failures=""