Saxon » SaxonC

Moving this memory leak discussion to a bug issue reported by user in the forum post: https://saxonica.plan.io/boards/4/topics/9871

Valgrind reports 14 bytes lost by the Xslt30Processor during the compile phase:

xslt = xsltProcessor->compileFromString(styleSheet);

Valgrind shows:

==4403== 14 bytes in 1 blocks are definitely lost in loss record 1 of 6
==4403==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==4403==    by 0xAB8D58E: strdup (strdup.c:42)
==4403==    by 0x6A7A057: ??? (in /home/ond1/work/repository/saxondev-12/build/releases/libsaxon-EEC-linux-amd64-v12.5.0/libs/nix/libsaxon-eec-12.5.0.so)
==4403==    by 0x6A7A0E5: findJavaTZ_md (in /home/ond1/work/repository/saxondev-12/build/releases/libsaxon-EEC-linux-amd64-v12.5.0/libs/nix/libsaxon-eec-12.5.0.so)
==4403==    by 0x4E217A4: ??? (LibCHelper.java:0)
==4403==    by 0x590C209: ??? (TimeZoneSubstitutions.java:96)
==4403==    by 0x590CAB1: ??? (TimeZone.java:671)
==4403==    by 0x590BCE2: ??? (TimeZone.java:653)
==4403==    by 0x590BC54: ??? (TimeZone.java:642)
==4403==    by 0x5815C94: ??? (ZoneId.java:272)
==4403==    by 0x58098F4: ??? (Clock.java:184)
==4403==    by 0x5819224: ??? (ZonedDateTime.java:199)
==4403==    by 0x64EAD54: ??? (DateTimeValue.java:156)
==4403==    by 0x62C36CF: ??? (UseWhenFilter.java:66)
==4403==    by 0x62B5CBD: ??? (StylesheetModule.java:206)
==4403==    by 0x626ED28: ??? (Compilation.java:115)
==4403==    by 0x61F5DD2: ??? (XsltCompiler.java:971)
==4403==    by 0x60E622D: ??? (Xslt30Processor.java:550)
==4403==    by 0x4E60FB3: j_compileFromString (IsolateEnterStub.java:1)
==4403==    by 0x11E661: Xslt30Processor::compileFromString(char const*, char const*) (Xslt30Processor.cpp:330)

This is a bug against Graalvm version 22.3.1. In the Saxon Java code we make the following call:

    public static ZonedDateTime now() {
        return now(Clock.systemDefaultZone());
    }

I found a bug issue against Graalvm in the same area which seems possibly relate: https://github.com/AdoptOpenJDK/openjdk-jdk11/commit/d6cf8d14aa823b9b5958ba000bc3ceaf988e026e