[GR-51623] Use Locale.ROOT instead of Locale.ENGLISH.

compiler/src/jdk.graal.compiler.test/src/jdk/graal/compiler/core/test/VerifyStringCaseUsage.java

@@ -54,7 +54,7 @@ protected void verify(StructuredGraph graph, CoreProviders context) {
                 }
                 String calleeName = callee.getName();
                 if (calleeName.equals(TO_LOWER_CASE_METHOD_NAME) || calleeName.equals(TO_UPPER_CASE_METHOD_NAME)) {
-                    throw new VerificationError(t, "call to parameterless %s is prohibited to avoid localization issues. Please pass a locale such as 'Locale.ENGLISH' explicitly.",
+                    throw new VerificationError(t, "call to parameterless %s is prohibited to avoid localization issues. Please pass a locale such as 'Locale.ROOT' explicitly.",
                                     callee.format("%H.%n(%p)"));
                 }
             }

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/code/HexCodeFileDisassemblerProvider.java

@@ -154,7 +154,7 @@ static class HexCodeFileDisTool {
                     arch = "amd64";
                 }
                 int wordWidth = arch.endsWith("64") ? 64 : Integer.parseInt(Services.getSavedProperty("sun.arch.data.model", "64"));
-                String hcf = new HexCodeFile(code, 0L, arch.toLowerCase(Locale.ENGLISH), wordWidth).toEmbeddedString();
+                String hcf = new HexCodeFile(code, 0L, arch.toLowerCase(Locale.ROOT), wordWidth).toEmbeddedString();
                 try {
                     toolMethod.invokeExact(hcf);
                 } catch (Throwable e) {

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/core/phases/fuzzing/FullFuzzedTierPlan.java

@@ -211,7 +211,7 @@ public int getPhaseSkipOdds() {
     @Override
     public String toString() {
         return String.format("%s%n%s%nProbability of inserting a phase: 1/%s (-Dtest.graal.skip.phase.insertion.odds.%s=%s)%n",
-                        super.toString(), ignoredPhasesToString(), phaseSkipOdds, String.join(".", getTierName().toLowerCase(Locale.ENGLISH).split(" ")), phaseSkipOdds);
+                        super.toString(), ignoredPhasesToString(), phaseSkipOdds, String.join(".", getTierName().toLowerCase(Locale.ROOT).split(" ")), phaseSkipOdds);
     }
 
     @Override

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/core/phases/fuzzing/MinimalFuzzedTierPlan.java

@@ -304,7 +304,7 @@ protected String ignoredPhasesToString() {
             return "Every phase that was given is in the resulting tier plan.";
         }
         Formatter formatter = new Formatter();
-        formatter.format("Phase%s in %s ignored by the fuzzer:%n", getIgnoredPhases().size() > 1 ? "s" : "", getTierName().toLowerCase(Locale.ENGLISH));
+        formatter.format("Phase%s in %s ignored by the fuzzer:%n", getIgnoredPhases().size() > 1 ? "s" : "", getTierName().toLowerCase(Locale.ROOT));
         for (BasePhase<? super C> phase : getIgnoredPhases()) {
             if (phase instanceof PhaseSuite) {
                 formatter.format("%s", PrintingUtils.indent(phase.toString()));

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/debug/DebugContext.java

@@ -1896,7 +1896,7 @@ public static String applyFormattingFlagsAndWidth(String s, int flags, int width
 
         String res = sb.toString();
         if ((flags & UPPERCASE) == UPPERCASE) {
-            res = res.toUpperCase(Locale.ENGLISH);
+            res = res.toUpperCase(Locale.ROOT);
         }
         return res;
     }

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/lir/LIRInstructionClass.java

@@ -323,7 +323,7 @@ String toString(LIRInstruction obj) {
         StringBuilder result = new StringBuilder();
 
         appendValues(result, obj, "", " = ", "(", ")", new String[]{""}, defs);
-        result.append(String.valueOf(getOpcode(obj)).toUpperCase(Locale.ENGLISH));
+        result.append(String.valueOf(getOpcode(obj)).toUpperCase(Locale.ROOT));
         appendValues(result, obj, " ", "", "(", ")", new String[]{"", "~"}, uses, alives);
         appendValues(result, obj, " ", "", "{", "}", new String[]{""}, temps);
 

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/nodes/GraphState.java

@@ -774,7 +774,7 @@ public enum MandatoryStages {
          *         is found, returns {@link #COMMUNITY}.
          */
         public static MandatoryStages getFromName(String name) {
-            switch (name.toLowerCase(Locale.ENGLISH)) {
+            switch (name.toLowerCase(Locale.ROOT)) {
                 case "economy":
                     return ECONOMY;
                 case "community":

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/options/OptionsParser.java

@@ -212,7 +212,7 @@ public static Object parseOptionValue(OptionDescriptor desc, Object uncheckedVal
     }
 
     private static long parseLong(String v) {
-        String valueString = v.toLowerCase(Locale.ENGLISH);
+        String valueString = v.toLowerCase(Locale.ROOT);
         long scale = 1;
         if (valueString.endsWith("k")) {
             scale = 1024L;

espresso/src/com.oracle.truffle.espresso.processor/src/com/oracle/truffle/espresso/processor/NativeEnvProcessor.java

@@ -155,7 +155,7 @@ private void initClosure(IntrinsificationTarget target) {
         this.envPackage = target.envPackage;
         this.envClassName = target.envClassName;
 
-        this.envName = envClassName.toLowerCase(Locale.ENGLISH);
+        this.envName = envClassName.toLowerCase(Locale.ROOT);
         this.imports = envPackage + "." + envClassName + ";\n";
     }
 

espresso/src/com.oracle.truffle.espresso/src/com/oracle/truffle/espresso/EspressoOptions.java

@@ -263,7 +263,7 @@ public enum SpecComplianceMode {
         @Override
         public SpecComplianceMode apply(String s) {
             try {
-                return SpecComplianceMode.valueOf(s.toUpperCase(Locale.ENGLISH));
+                return SpecComplianceMode.valueOf(s.toUpperCase(Locale.ROOT));
             } catch (IllegalArgumentException e) {
                 throw new IllegalArgumentException("--java.SpecCompliance: Mode can be 'strict' or 'hotspot'.");
             }
@@ -286,7 +286,7 @@ public enum VerifyMode {
         @Override
         public VerifyMode apply(String s) {
             try {
-                return VerifyMode.valueOf(s.toUpperCase(Locale.ENGLISH));
+                return VerifyMode.valueOf(s.toUpperCase(Locale.ROOT));
             } catch (IllegalArgumentException e) {
                 throw new IllegalArgumentException("-Xverify: Mode can be 'none', 'remote' or 'all'.");
             }
@@ -342,7 +342,7 @@ public LivenessAnalysisMode apply(String s) {
                 return LivenessAnalysisMode.NONE;
             }
             try {
-                return LivenessAnalysisMode.valueOf(s.toUpperCase(Locale.ENGLISH));
+                return LivenessAnalysisMode.valueOf(s.toUpperCase(Locale.ROOT));
             } catch (IllegalArgumentException e) {
                 throw new IllegalArgumentException("--java.LivenessAnalysis can only be 'none'|'false', 'auto' or 'all'|'true'.");
             }
@@ -639,7 +639,7 @@ public enum JImageMode {
                         @Override
                         public JImageMode apply(String s) {
                             try {
-                                return JImageMode.valueOf(s.toUpperCase(Locale.ENGLISH));
+                                return JImageMode.valueOf(s.toUpperCase(Locale.ROOT));
                             } catch (IllegalArgumentException e) {
                                 throw new IllegalArgumentException("JImage: Mode can be 'native', 'java'.");
                             }

sdk/src/org.graalvm.maven.downloader/src/org/graalvm/maven/downloader/Main.java

@@ -62,7 +62,7 @@ public class Main {
     static {
         String logLevel = System.getenv(LOGGING_PROP);
         if (logLevel != null) {
-            Level level = Level.parse(logLevel.toUpperCase(Locale.ENGLISH));
+            Level level = Level.parse(logLevel.toUpperCase(Locale.ROOT));
             LOGGER.setLevel(level);
             Handler[] handlers = Logger.getLogger("").getHandlers();
             for (Handler h : handlers) {

sdk/src/org.graalvm.nativebridge.processor/src/org/graalvm/nativebridge/processor/AbstractBridgeGenerator.java

@@ -1080,7 +1080,7 @@ private static DeclaredType getComponentType(TypeMirror arrayType, Types types)
         }
 
         private static String cacheEntryName(CharSequence name) {
-            return name.toString().replace('.', '_').toUpperCase(Locale.ENGLISH) + "_BINARY_NAME";
+            return name.toString().replace('.', '_').toUpperCase(Locale.ROOT) + "_BINARY_NAME";
         }
     }
 }

substratevm/src/com.oracle.graal.pointsto/src/com/oracle/graal/pointsto/api/PointstoOptions.java

@@ -170,7 +170,7 @@ protected void onValueUpdate(EconomicMap<OptionKey<?>, Object> values, Boolean o
     public static final OptionKey<String> AnalysisContextSensitivity = new OptionKey<>("insens") {
         @Override
         protected void onValueUpdate(EconomicMap<OptionKey<?>, Object> values, String oldValue, String newValue) {
-            switch (newValue.toLowerCase(Locale.ENGLISH)) {
+            switch (newValue.toLowerCase(Locale.ROOT)) {
                 case "insens":
                     AllocationSiteSensitiveHeap.update(values, false);
                     MinHeapContextDepth.update(values, 0);

substratevm/src/com.oracle.objectfile/src/com/oracle/objectfile/SectionName.java

@@ -126,7 +126,7 @@ public String getSegmentName(ObjectFile.Format f) {
         // default implementation
         switch (f) {
             case MACH_O:
-                return getFormatDependentName(f).toUpperCase(Locale.ENGLISH);
+                return getFormatDependentName(f).toUpperCase(Locale.ROOT);
             default:
             case ELF:
                 return null;

substratevm/src/com.oracle.objectfile/src/com/oracle/objectfile/elf/ELFMachine.java

@@ -87,7 +87,7 @@ int flags() {
     abstract int flags();
 
     public static ELFMachine from(String s) {
-        switch (s.toLowerCase(Locale.ENGLISH)) {
+        switch (s.toLowerCase(Locale.ROOT)) {
             case "amd64":
             case "x86_64":
                 return X86_64;

substratevm/src/com.oracle.svm.core.windows/src/com/oracle/svm/core/windows/Target_jdk_internal_misc_Signal.java

@@ -118,7 +118,7 @@ static void ensureInitialized() {
         if (signalDispatcherThread.getState() == Thread.State.NEW) {
             if (!jdkMiscSignalInit()) {
                 VMError.shouldNotReachHere("Native state initialization for jdk.internal.misc.Signal failed with error code: 0x" +
-                                Integer.toUnsignedString(WinBase.GetLastError(), 16).toUpperCase(Locale.ENGLISH));
+                                Integer.toUnsignedString(WinBase.GetLastError(), 16).toUpperCase(Locale.ROOT));
             }
             RuntimeSupport.getRuntimeSupport().addTearDownHook(isFirstIsolate -> osTerminateSignalThread());
             signalDispatcherThread.start();

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/OS.java

@@ -50,7 +50,7 @@ public enum OS {
      * Returns a string that can be used in a package name.
      */
     public String asPackageName() {
-        return name().toLowerCase(Locale.ENGLISH);
+        return name().toLowerCase(Locale.ROOT);
     }
 
     public boolean isCurrent() {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/SystemPropertiesSupport.java

@@ -119,7 +119,7 @@ protected SystemPropertiesSupport() {
         initializeProperty("java.vendor", vm.vendor);
         initializeProperty("java.vendor.url", vm.vendorUrl);
         initializeProperty("java.vendor.version", vm.vendorVersion);
-        assert vm.info.equals(vm.info.toLowerCase(Locale.ENGLISH)) : "java.vm.info should not contain uppercase characters";
+        assert vm.info.equals(vm.info.toLowerCase(Locale.ROOT)) : "java.vm.info should not contain uppercase characters";
         initializeProperty("java.vm.info", vm.info);
         initializeProperty("java.vm.name", "Substrate VM");
         initializeProperty("java.vm.vendor", vm.vendor);

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/localization/substitutions/Target_java_nio_charset_Charset.java

@@ -78,7 +78,7 @@ private static Charset lookup2(String charsetName) {
         }
 
         Map<String, Charset> charsets = ImageSingletons.lookup(LocalizationSupport.class).charsets;
-        Charset cs = charsets.get(charsetName.toLowerCase(Locale.ENGLISH));
+        Charset cs = charsets.get(charsetName.toLowerCase(Locale.ROOT));
         if (cs != null) {
             cache(charsetName, cs);
             return cs;

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/logging/JfrLogConfiguration.java

@@ -93,7 +93,7 @@ private static void verifySelections(JfrLogSelection[] selections) {
         for (JfrLogSelection selection : selections) {
             if (!selection.matchesATagSet) {
                 throw new IllegalArgumentException("No tag set matches tag combination " +
-                                selection.tags.toString().toLowerCase(Locale.ENGLISH) + (selection.wildcard ? "*" : "") + " for FlightRecorderLogging");
+                                selection.tags.toString().toLowerCase(Locale.ROOT) + (selection.wildcard ? "*" : "") + " for FlightRecorderLogging");
             }
         }
     }
@@ -136,7 +136,7 @@ private static JfrLogSelection parse(String str) {
             if ((equalsIndex = str.indexOf('=')) > 0) {
                 String value = str.substring(equalsIndex + 1);
                 try {
-                    level = JfrLogLevel.valueOf(value.toUpperCase(Locale.ENGLISH));
+                    level = JfrLogLevel.valueOf(value.toUpperCase(Locale.ROOT));
                 } catch (IllegalArgumentException | NullPointerException e) {
                     throw new IllegalArgumentException("Invalid log level '" + value + "' for FlightRecorderLogging.", e);
                 }
@@ -156,7 +156,7 @@ private static JfrLogSelection parse(String str) {
 
             for (String s : tagsStr.split("\\+")) {
                 try {
-                    tags.add(JfrLogTag.valueOf(s.toUpperCase(Locale.ENGLISH)));
+                    tags.add(JfrLogTag.valueOf(s.toUpperCase(Locale.ROOT)));
                 } catch (IllegalArgumentException | NullPointerException e) {
                     throw new IllegalArgumentException("Invalid log tag '" + s + "' for FlightRecorderLogging.", e);
                 }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/logging/JfrLogging.java

@@ -115,7 +115,7 @@ private static String[] createLogLevels() {
         LogLevel[] values = LogLevel.values();
         String[] result = new String[getMaxLogLevel(values) + 1];
         for (LogLevel logLevel : values) {
-            result[getLevel(logLevel)] = logLevel.toString().toLowerCase(Locale.ENGLISH);
+            result[getLevel(logLevel)] = logLevel.toString().toLowerCase(Locale.ROOT);
         }
         return result;
     }
@@ -141,7 +141,7 @@ private static String[] createLogTagSets() {
                     if (builder.length() > 0) {
                         builder.append(",");
                     }
-                    builder.append(logTag.toString().toLowerCase(Locale.ENGLISH));
+                    builder.append(logTag.toString().toLowerCase(Locale.ROOT));
                 }
                 result[getId(logTagSet)] = builder.toString();
             }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/option/LocatableMultiOptionValue.java

@@ -116,7 +116,7 @@ public Stream<Pair<T, OptionOrigin>> getValuesWithOrigins() {
 
     @Override
     public String toString() {
-        return "<" + ClassUtil.getUnqualifiedName(valueType).toLowerCase(Locale.ENGLISH) + ">*";
+        return "<" + ClassUtil.getUnqualifiedName(valueType).toLowerCase(Locale.ROOT) + ">*";
     }
 
     public static final class Strings extends LocatableMultiOptionValue<String> {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/option/OptionUtils.java

@@ -111,7 +111,7 @@ public String getDescriptionPrefix(boolean commandLineStyle) {
 
         @Override
         public String toString() {
-            return name().toLowerCase(Locale.ENGLISH);
+            return name().toLowerCase(Locale.ROOT);
         }
     }
 

substratevm/src/com.oracle.svm.driver/src/com/oracle/svm/driver/APIOptionHandler.java

@@ -295,7 +295,7 @@ private static <T extends Annotation> List<T> getAnnotationsByType(OptionDescrip
     }
 
     private static String startLowerCase(String str) {
-        return str.substring(0, 1).toLowerCase(Locale.ENGLISH) + str.substring(1);
+        return str.substring(0, 1).toLowerCase(Locale.ROOT) + str.substring(1);
     }
 
     @Override

substratevm/src/com.oracle.svm.driver/src/com/oracle/svm/driver/NativeImage.java

@@ -120,7 +120,7 @@ public class NativeImage {
     static final String platform = getPlatform();
 
     private static String getPlatform() {
-        return (OS.getCurrent().className + "-" + SubstrateUtil.getArchitectureName()).toLowerCase(Locale.ENGLISH);
+        return (OS.getCurrent().className + "-" + SubstrateUtil.getArchitectureName()).toLowerCase(Locale.ROOT);
     }
 
     static final String graalvmVendor = VM.getVendor();
@@ -1211,10 +1211,10 @@ private int completeImageBuild() {
                     if (getHostedOptionArgumentValue(imageBuilderArgs, oHName) == null) {
                         /* Also no explicit image name given as customImageBuilderArgs */
                         if (explicitMainClass) {
-                            imageBuilderArgs.add(oH(SubstrateOptions.Name, "main-class lower case as image name") + mainClass.toLowerCase(Locale.ENGLISH));
+                            imageBuilderArgs.add(oH(SubstrateOptions.Name, "main-class lower case as image name") + mainClass.toLowerCase(Locale.ROOT));
                         } else if (getHostedOptionArgumentValue(imageBuilderArgs, oHName) == null) {
                             if (hasMainClassModule) {
-                                imageBuilderArgs.add(oH(SubstrateOptions.Name, "image-name from module-name") + mainClassModule.toLowerCase(Locale.ENGLISH));
+                                imageBuilderArgs.add(oH(SubstrateOptions.Name, "image-name from module-name") + mainClassModule.toLowerCase(Locale.ROOT));
                             } else if (!listModules) {
                                 /* Although very unlikely, report missing image-name if needed. */
                                 throw showError("Missing image-name. Use -o <imagename> to provide one.");
@@ -1447,7 +1447,7 @@ private void addTargetArguments() {
         if (targetPlatform == null) {
             return;
         }
-        targetPlatform = targetPlatform.toLowerCase(Locale.ENGLISH);
+        targetPlatform = targetPlatform.toLowerCase(Locale.ROOT);
 
         String[] parts = targetPlatform.split("-");
         if (parts.length != 2) {
@@ -1782,7 +1782,7 @@ private static void sanitizeJVMEnvironment(Map<String, String> environment, Map<
         Function<String, String> keyMapper;
         if (OS.WINDOWS.isCurrent()) {
             requiredKeys.addAll(List.of("TEMP", "INCLUDE", "LIB"));
-            keyMapper = s -> s.toUpperCase(Locale.ENGLISH);
+            keyMapper = s -> s.toUpperCase(Locale.ROOT);
         } else {
             keyMapper = Function.identity();
         }
@@ -2114,7 +2114,7 @@ public static List<Path> expandAsteriskClassPathElement(String cp) {
     }
 
     private static boolean hasJarFileSuffix(Path p) {
-        return p.getFileName().toString().toLowerCase(Locale.ENGLISH).endsWith(".jar");
+        return p.getFileName().toString().toLowerCase(Locale.ROOT).endsWith(".jar");
     }
 
     /**

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/NativeImageGenerator.java

@@ -419,7 +419,7 @@ public static Platform getTargetPlatform(ClassLoader classLoader) {
 
         String os = System.getProperty("svm.targetPlatformOS");
         if (os == null) {
-            os = OS.getCurrent().className.toLowerCase(Locale.ENGLISH);
+            os = OS.getCurrent().className.toLowerCase(Locale.ROOT);
         }
 
         String arch = System.getProperty("svm.targetPlatformArch");
@@ -1714,7 +1714,7 @@ public static void checkName(String name, AnalysisMethod method, BigBang bb) {
     }
 
     public static String checkName(String name) {
-        String lname = name.toLowerCase(Locale.ENGLISH);
+        String lname = name.toLowerCase(Locale.ROOT);
         String message = null;
         if (lname.contains("hosted")) {
             message = "Hosted element used at run time: " + name;