I am running the gatk collect allelic counts function, but there is an error that I don't know how to fix. Interval list is downloaded from gatk resource bundle: https://storage.cloud.google.com/genomics-public-data/resources/broad/hg38/v0/wgs_calling_regions.hg38.interval_list and then I use gatk processinterval function to create it.

my script is below:

WD="/home/Desktop/CNV"
REF="${WD}/ref/hg38.fasta"
INT="${WD}/ref/wgs.hg38.interval_list"
DICT="${WD}/ref/hg38.fasta.dict"

time gatk --java-options "-Xmx16g -Djava.io.tmpdir=${TMPFILE}" CollectAllelicCounts \
--intervals ${INT} \
--input ${NAME}.addRG.mkdup.recal.bam \
--reference ${REF} \
--tmp-dir ${TMPFILE} \
--sequence-dictionary ${DICT} \ 
--output ${NAME}.allelic_counts.tsv

and the error is below:

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Arrays.java:3181) at java.util.ArrayList.grow(ArrayList.java:265) at java.util.ArrayList.ensureExplicitCapacity(ArrayList.java:239) at java.util.ArrayList.ensureCapacityInternal(ArrayList.java:231) at java.util.ArrayList.add(ArrayList.java:462) at org.broadinstitute.hellbender.tools.copynumber.datacollection.AllelicCountCollector.collectAtLocus(AllelicCountCollector.java:72) at org.broadinstitute.hellbender.tools.copynumber.CollectAllelicCounts.apply(CollectAllelicCounts.java:152) at org.broadinstitute.hellbender.engine.LocusWalker.lambda$traverse$0(LocusWalker.java:176) at org.broadinstitute.hellbender.engine.LocusWalker$$Lambda$91/1519482659.accept(Unknown Source) at java.util.Iterator.forEachRemaining(Iterator.java:116) at org.broadinstitute.hellbender.engine.LocusWalker.traverse(LocusWalker.java:174) at org.broadinstitute.hellbender.engine.GATKTool.doWork(GATKTool.java:966) at org.broadinstitute.hellbender.cmdline.CommandLineProgram.runTool(CommandLineProgram.java:139) at org.broadinstitute.hellbender.cmdline.CommandLineProgram.instanceMainPostParseArgs(CommandLineProgram.java:192) at org.broadinstitute.hellbender.cmdline.CommandLineProgram.instanceMain(CommandLineProgram.java:211) at org.broadinstitute.hellbender.Main.runCommandLineProgram(Main.java:160) at org.broadinstitute.hellbender.Main.mainEntry(Main.java:203) at org.broadinstitute.hellbender.Main.main(Main.java:289)

I tried to increase the memory but it didn't work as well.