java/openjdk8: fix build with clang 19
Clang 19 is now more strict about undefined integral expressions used as
constants in enum, which results in errors compiling java/openjdk8,
similar to:
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/share/vm/oops/cpCache.hpp:195:34: error: expression is not an integral constant expression
195 | option_bits_mask = ~(((-1) << tos_state_shift) | (field_index_mask | parameter_size_mask))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/share/vm/oops/cpCache.hpp:195:42: note: left shift of negative value -1
195 | option_bits_mask = ~(((-1) << tos_state_shift) | (field_index_mask | parameter_size_mask))
| ^
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/share/vm/code/dependencies.hpp:173:27: error: expression is not an integral constant expression
173 | all_types = ((1 << TYPE_LIMIT) - 1) & ((-1) << FIRST_TYPE),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/hotspot/src/share/vm/code/dependencies.hpp:173:59: note: left shift of negative value -1
173 | all_types = ((1 << TYPE_LIMIT) - 1) & ((-1) << FIRST_TYPE),
| ^
In file included from /wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/jdk/src/share/native/com/sun/java/util/jar/pack/bands.cpp:43:
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/jdk/src/share/native/com/sun/java/util/jar/pack/constants.h:226:33: error: expression is not an integral constant expression
226 | AO_UNUSED_MBZ = (-1)<<13, // options bits reserved for future use.
| ^~~~~~~~
/wrkdirs/usr/ports/java/openjdk8/work/jdk8u-jdk8u422-b05.1/jdk/src/share/native/com/sun/java/util/jar/pack/constants.h:226:37: note: left shift of negative value -1
226 | AO_UNUSED_MBZ = (-1)<<13, // options bits reserved for future use.
| ^In openjdk11 and later, the (-1) constants have been replaced by the
unsigned variant (~0u), which fixes these errors.
PR: 280559
Approved by: glewis (maintainer)
MFH: 2024Q3
(cherry picked from commit 55925767376bb8d4ffe1a0304555988464c25599)