Cleanups.

Author: christianhaeubl

substratevm/CHANGELOG.md

@@ -9,7 +9,7 @@ At runtime, premain runtime options are set along with main class' arguments in
   The warning is planned to be replaced by an error in GraalVM for JDK 25.
 * (GR-48384) Added a GDB Python script (`gdb-debughelpers.py`) to improve the Native Image debugging experience.
 * (GR-49517) Add support for emitting Windows x64 unwind info. This enables stack walking in native tooling such as debuggers and profilers.
-* (GR-56601) Together with Red Hat, we added experimental support for `jcmd` on Linux and macOS.
+* (GR-56601) Together with Red Hat, we added experimental support for `jcmd` on Linux and macOS. Add `--enable-monitoring=jcmd` to your build arguments to try it out.
 * (GR-57384) Preserve the origin of a resource included in a native image. The information is included in the report produced by -H:+GenerateEmbeddedResourcesFile.
 * (GR-58000) Support for `GetStringUTFLengthAsLong` added in JNI_VERSION_24 ([JDK-8328877](https://bugs.openjdk.org/browse/JDK-8328877))
 * (GR-58383) The length of the printed stack trace when using `-XX:MissingRegistrationReportingMode=Warn` can now be set with `-XX:MissingRegistrationWarnContextLines=` and its default length is now 8.

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/dcmd/AbstractDCmd.java

@@ -98,15 +98,15 @@ private DCmdArguments parse(String input) {
 
         /* Check that all mandatory arguments have been set. */
         for (DCmdOption<?> arg : arguments) {
-            if (arg.isRequired() && !result.hasBeenSet(arg)) {
-                throw new IllegalArgumentException("The argument '" + arg.getName() + "' is mandatory.");
+            if (arg.required() && !result.hasBeenSet(arg)) {
+                throw new IllegalArgumentException("The argument '" + arg.name() + "' is mandatory.");
             }
         }
 
         /* Check that all mandatory options have been set. */
         for (DCmdOption<?> option : options) {
-            if (option.isRequired() && !result.hasBeenSet(option)) {
-                throw new IllegalArgumentException("The option '" + option.getName() + "' is mandatory.");
+            if (option.required() && !result.hasBeenSet(option)) {
+                throw new IllegalArgumentException("The option '" + option.name() + "' is mandatory.");
             }
         }
 
@@ -139,7 +139,7 @@ private void parseOption(String left, String right, DCmdArguments result) {
 
     private DCmdOption<?> findOption(String optionName) {
         for (DCmdOption<?> option : options) {
-            if (option.getName().equals(optionName)) {
+            if (option.name().equals(optionName)) {
                 return option;
             }
         }
@@ -148,14 +148,14 @@ private DCmdOption<?> findOption(String optionName) {
 
     @BasedOnJDKFile("https://github.com/openjdk/jdk/blob/jdk-24+18/src/hotspot/share/services/diagnosticArgument.cpp#L140-L166")
     private static Object parseValue(DCmdOption<?> option, String valueString) {
-        Class<?> type = option.getType();
+        Class<?> type = option.type();
         if (type == Boolean.class) {
             if (valueString == null || valueString.isEmpty() || "true".equals(valueString)) {
                 return Boolean.TRUE;
             } else if ("false".equals(valueString)) {
                 return Boolean.FALSE;
             } else {
-                throw new IllegalArgumentException("Boolean parsing error in command argument '" + option.getName() + "'. Could not parse: " + valueString + ".");
+                throw new IllegalArgumentException("Boolean parsing error in command argument '" + option.name() + "'. Could not parse: " + valueString + ".");
             }
         } else if (type == String.class) {
             return valueString;
@@ -194,11 +194,11 @@ protected String getSyntaxAndExamples() {
 
         for (DCmdOption<?> option : arguments) {
             sb.append(" ");
-            if (!option.isRequired()) {
+            if (!option.required()) {
                 sb.append("[");
             }
-            sb.append("<").append(option.getName()).append(">");
-            if (!option.isRequired()) {
+            sb.append("<").append(option.name()).append(">");
+            if (!option.required()) {
                 sb.append("]");
             }
         }
@@ -234,22 +234,22 @@ protected String getSyntaxAndExamples() {
     }
 
     private static void appendOption(StringBuilder sb, DCmdOption<?> option) {
-        sb.append("\t").append(option.getName()).append(" : ");
-        if (!option.isRequired()) {
+        sb.append("\t").append(option.name()).append(" : ");
+        if (!option.required()) {
             sb.append("[optional] ");
         }
-        sb.append(option.getDescription());
+        sb.append(option.description());
         sb.append(" (").append(typeToString(option)).append(", ");
-        if (option.getDefaultValue() != null) {
-            sb.append(option.getDefaultValue());
+        if (option.defaultValue() != null) {
+            sb.append(option.defaultValue());
         } else {
             sb.append("no default value");
         }
         sb.append(")");
     }
 
     private static String typeToString(DCmdOption<?> option) {
-        Class<?> type = option.getType();
+        Class<?> type = option.type();
         if (type == Boolean.class) {
             return "BOOLEAN";
         } else if (type == String.class) {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/dcmd/DCmdArguments.java

@@ -46,15 +46,15 @@ public void set(DCmdOption<?> option, Object value) {
             throw new IllegalArgumentException("Duplicates in diagnostic command arguments");
         }
 
-        assert value == null || option.getType().isAssignableFrom(value.getClass());
+        assert value == null || option.type().isAssignableFrom(value.getClass());
         values.put(option, value);
     }
 
     @SuppressWarnings("unchecked")
     public <T> T get(DCmdOption<T> option) {
         Object value = values.get(option);
         if (value == null) {
-            return option.getDefaultValue();
+            return option.defaultValue();
         }
         return (T) value;
     }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/dcmd/DCmdOption.java

@@ -26,38 +26,5 @@
 
 package com.oracle.svm.core.dcmd;
 
-public class DCmdOption<T> {
-    private final Class<T> type;
-    private final String name;
-    private final String description;
-    private final boolean required;
-    private final T defaultValue;
-
-    public DCmdOption(Class<T> type, String name, String description, boolean required, T defaultValue) {
-        this.type = type;
-        this.name = name;
-        this.description = description;
-        this.required = required;
-        this.defaultValue = defaultValue;
-    }
-
-    public Class<?> getType() {
-        return type;
-    }
-
-    String getName() {
-        return name;
-    }
-
-    String getDescription() {
-        return description;
-    }
-
-    boolean isRequired() {
-        return required;
-    }
-
-    T getDefaultValue() {
-        return defaultValue;
-    }
+public record DCmdOption<T>(Class<T> type, String name, String description, boolean required, T defaultValue) {
 }