POI Version:5.1.0

When opening the docx compressed package, the log will print a lot of warn's exception stack informations for each directory encountered:


20:36:25.440 [http-nio-8077-exec-1] WARN  o.a.poi.openxml4j.opc.ZipPackage - Entry word/ is not valid, so this part won't be add to the package.
org.apache.poi.openxml4j.exceptions.InvalidFormatException: A part name shall not have a forward slash as the last character [M1.5]: /word/
	at org.apache.poi.openxml4j.opc.PackagePartName.throwExceptionIfPartNameEndsWithForwardSlashChar(PackagePartName.java:383)
	at org.apache.poi.openxml4j.opc.PackagePartName.throwExceptionIfInvalidPartUri(PackagePartName.java:182)
	at org.apache.poi.openxml4j.opc.PackagePartName.<init>(PackagePartName.java:82)
	at org.apache.poi.openxml4j.opc.PackagingURIHelper.createPartName(PackagingURIHelper.java:481)
	at org.apache.poi.openxml4j.opc.PackagingURIHelper.createPartName(PackagingURIHelper.java:502)
	at org.apache.poi.openxml4j.opc.ZipPackage$EntryTriple.<init>(ZipPackage.java:337)
	at org.apache.poi.openxml4j.opc.ZipPackage.lambda$getPartsImpl$0(ZipPackage.java:311)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
	at org.apache.poi.openxml4j.opc.ZipPackage.getPartsImpl(ZipPackage.java:314)
	at org.apache.poi.openxml4j.opc.OPCPackage.getParts(OPCPackage.java:740)
	at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:315)
	at org.apache.poi.ooxml.util.PackageHelper.open(PackageHelper.java:47)
	at org.apache.poi.xwpf.usermodel.XWPFDocument.<init>(XWPFDocument.java:141)

20:36:25.441 [http-nio-8077-exec-1] WARN  o.a.poi.openxml4j.opc.ZipPackage - Entry _rels/ is not valid, so this part won't be add to the package.
org.apache.poi.openxml4j.exceptions.InvalidFormatException: A part name shall not have a forward slash as the last character [M1.5]: /_rels/
	at org.apache.poi.openxml4j.opc.PackagePartName.throwExceptionIfPartNameEndsWithForwardSlashChar(PackagePartName.java:383)
	at org.apache.poi.openxml4j.opc.PackagePartName.throwExceptionIfInvalidPartUri(PackagePartName.java:182)
	at org.apache.poi.openxml4j.opc.PackagePartName.<init>(PackagePartName.java:82)
	at org.apache.poi.openxml4j.opc.PackagingURIHelper.createPartName(PackagingURIHelper.java:481)
	at org.apache.poi.openxml4j.opc.PackagingURIHelper.createPartName(PackagingURIHelper.java:502)
	...