Hi, This particular exception is being thrown by the call to unlinkat [1] which calls native unlinkat. Man page for unlinkat describes EISDIR error [2] as: "EISDIR pathname refers to a directory, and AT_REMOVEDIR was not specified in flags."
Assuming unlinkat is telling the truth and this is indeed a directory, it can be seen from the stacktrace that deleteRecursivelySecure is calling deleteFile [3] instead of deleteDir (deleteDir does set AT_REMOVERDIR). This seems to indicate that the isDirectory call [4] is getting wrong file attributes. Following the trail, those file attributes come from a fstatat call [5] which ultimately come from the native stack in UnixNativeDispatcher.c [6]. The actual way that fstatat is called depends on the build flags and defines from the arch, so somebody with better knowledge might want to take a look at UnixNativeDispatcher.c [6] and tell if OpenJDK is picking the right function to call for mips64el. References: [1] unlinkat call https://sources.debian.org/src/openjdk-11/11.0.10+9-1/src/java.base/unix/classes/sun/nio/fs/UnixSecureDirectoryStream.java/#L200 [2] EISDIR in OpenJDK: https://sources.debian.org/src/openjdk-11/11.0.10+9-1/src/hotspot/share/runtime/os.cpp/#L1504 [3] https://salsa.debian.org/java-team/guava-libraries/-/blob/master/guava/src/com/google/common/io/MoreFiles.java#L630 [4] https://salsa.debian.org/java-team/guava-libraries/-/blob/master/guava/src/com/google/common/io/MoreFiles.java#L335 [5] https://sources.debian.org/src/openjdk-11/11.0.10+9-1/src/java.base/unix/classes/sun/nio/fs/UnixFileAttributes.java/#L90 cheers, -- Tiago Stürmer Daitx Software Engineer tiago.da...@canonical.com PGP Key: 4096R/F5B213BE (hkp://keyserver.ubuntu.com) Fingerprint = 45D0 FE5A 8109 1E91 866E 8CA4 1931 8D5E F5B2 13BE