jdk-15+32 can't be built using OpenJDK 14

[Jan Lahoda]

Hi Matthias,

Do you have more information about what exactly is the boot JDK? E.g. 
what was the source revision, etc.? Switch expressions have been made 
final in JDK 14, see:
https://openjdk.java.net/jeps/361
https://hg.openjdk.java.net/jdk/jdk/rev/cfc7bb9a5a92

Thanks,
     Jan

On 17. 07. 20 18:47, Matthias Klose wrote:
> Seen with jdk-15+32 on platforms with just the zero VM.  The build fails with
> 
> Executing: [/usr/lib/jvm/java-14-openjdk-x32/bin/java -XX:+UseSerialGC -Xms32M
> -Xmx512M -XX:TieredStopAtLevel=1 -Duser.language=en -Duser.country=US -cp
> /<<PKGBUILDDIR>>/build/hotspot/variant-zero/tools/jvmti jvmtiGen -IN
> /<<PKGBUILDDIR>>/src/hotspot/share/prims/jvmti.xml -XSL
> /<<PKGBUILDDIR>>/src/hotspot/share/prims/jvmtiH.xsl -OUT
> /<<PKGBUILDDIR>>/build/hotspot/variant-zero/gensrc/jvmtifiles/jvmti.h -PARAM
> majorversion 15]
> /<<PKGBUILDDIR>>/src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java:4252:
> error: switch expressions are a preview feature and are disabled by default.
>              switch (next.kind) {
>              ^
>    (use --enable-preview to enable switch expressions)
> /<<PKGBUILDDIR>>/src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java:4253:
> error: multiple case labels are a preview feature and are disabled by default.
>                  case MONKEYS_AT, ABSTRACT, FINAL, STRICTFP, CLASS, INTERFACE,
> ENUM -> true;
>                                 ^
>    (use --enable-preview to enable multiple case labels)
> /<<PKGBUILDDIR>>/src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java:4253:
> error: switch rules are a preview feature and are disabled by default.
>                  case MONKEYS_AT, ABSTRACT, FINAL, STRICTFP, CLASS, INTERFACE,
> ENUM -> true;
>                                                                                     ^
>    (use --enable-preview to enable switch rules)
> 
> 
> This is the first build in a bootcycle configuration.
> 
> Matthias
>