[GR-64703] Clear caches after analysis phase.

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/code/RuntimeMetadataEncoderImpl.java

@@ -159,25 +159,25 @@ public RuntimeMetadataEncoder create(SnippetReflectionProvider snippetReflection
     private final CodeInfoEncoder.Encoders encoders;
     private final ReflectionDataAccessors accessors;
     private final ReflectionDataBuilder dataBuilder;
-    private final TreeSet<HostedType> sortedTypes = new TreeSet<>(Comparator.comparingLong(t -> t.getHub().getTypeID()));
-    private final Map<HostedType, ClassMetadata> classData = new HashMap<>();
-    private final Map<HostedType, Map<Object, FieldMetadata>> fieldData = new HashMap<>();
-    private final Map<HostedType, Map<Object, MethodMetadata>> methodData = new HashMap<>();
-    private final Map<HostedType, Map<Object, ConstructorMetadata>> constructorData = new HashMap<>();
-
-    private final Map<HostedType, Throwable> classLookupErrors = new HashMap<>();
-    private final Map<HostedType, Throwable> fieldLookupErrors = new HashMap<>();
-    private final Map<HostedType, Throwable> methodLookupErrors = new HashMap<>();
-    private final Map<HostedType, Throwable> constructorLookupErrors = new HashMap<>();
-    private final Map<HostedType, Throwable> recordComponentLookupErrors = new HashMap<>();
-
-    private final Set<AccessibleObjectMetadata> heapData = new HashSet<>();
-
-    private final Map<AccessibleObject, byte[]> annotationsEncodings = new HashMap<>();
-    private final Map<Executable, byte[]> parameterAnnotationsEncodings = new HashMap<>();
-    private final Map<Method, byte[]> annotationDefaultEncodings = new HashMap<>();
-    private final Map<AccessibleObject, byte[]> typeAnnotationsEncodings = new HashMap<>();
-    private final Map<Executable, byte[]> reflectParametersEncodings = new HashMap<>();
+    private TreeSet<HostedType> sortedTypes = new TreeSet<>(Comparator.comparingLong(t -> t.getHub().getTypeID()));
+    private Map<HostedType, ClassMetadata> classData = new HashMap<>();
+    private Map<HostedType, Map<Object, FieldMetadata>> fieldData = new HashMap<>();
+    private Map<HostedType, Map<Object, MethodMetadata>> methodData = new HashMap<>();
+    private Map<HostedType, Map<Object, ConstructorMetadata>> constructorData = new HashMap<>();
+
+    private Map<HostedType, Throwable> classLookupErrors = new HashMap<>();
+    private Map<HostedType, Throwable> fieldLookupErrors = new HashMap<>();
+    private Map<HostedType, Throwable> methodLookupErrors = new HashMap<>();
+    private Map<HostedType, Throwable> constructorLookupErrors = new HashMap<>();
+    private Map<HostedType, Throwable> recordComponentLookupErrors = new HashMap<>();
+
+    private Set<AccessibleObjectMetadata> heapData = new HashSet<>();
+
+    private Map<AccessibleObject, byte[]> annotationsEncodings = new HashMap<>();
+    private Map<Executable, byte[]> parameterAnnotationsEncodings = new HashMap<>();
+    private Map<Method, byte[]> annotationDefaultEncodings = new HashMap<>();
+    private Map<AccessibleObject, byte[]> typeAnnotationsEncodings = new HashMap<>();
+    private Map<Executable, byte[]> reflectParametersEncodings = new HashMap<>();
 
     public RuntimeMetadataEncoderImpl(SnippetReflectionProvider snippetReflection, CodeInfoEncoder.Encoders encoders) {
         this.snippetReflection = snippetReflection;
@@ -853,7 +853,35 @@ public void encodeAllAndInstall() {
         }
         install(buf);
         /* Enable field recomputers in reflection objects to see the computed values */
-        ImageSingletons.add(EncodedRuntimeMetadataSupplier.class, this);
+        EncodedRuntimeMetadataSupplierImpl supplierImpl = new EncodedRuntimeMetadataSupplierImpl(annotationsEncodings, parameterAnnotationsEncodings, annotationDefaultEncodings,
+                        typeAnnotationsEncodings, reflectParametersEncodings);
+        clearDataAfterEncoding();
+        ImageSingletons.add(EncodedRuntimeMetadataSupplier.class, supplierImpl);
+    }
+
+    /**
+     * After the buffer has been created and installed, all other data can be cleaned.
+     */
+    private void clearDataAfterEncoding() {
+        this.annotationsEncodings = null;
+        this.parameterAnnotationsEncodings = null;
+        this.annotationDefaultEncodings = null;
+        this.typeAnnotationsEncodings = null;
+        this.reflectParametersEncodings = null;
+
+        this.sortedTypes = null;
+        this.classData = null;
+        this.fieldData = null;
+        this.methodData = null;
+        this.constructorData = null;
+
+        this.classLookupErrors = null;
+        this.fieldLookupErrors = null;
+        this.methodLookupErrors = null;
+        this.constructorLookupErrors = null;
+        this.recordComponentLookupErrors = null;
+
+        this.heapData = null;
     }
 
     private int encodeErrorIndex(Throwable error) {
@@ -1271,4 +1299,40 @@ public static Object createFromLoader(ImageSingletonLoader loader) {
             return new LayeredRuntimeMetadataSingleton(registeredMethods, registeredFields);
         }
     }
+
+    /**
+     * Container for data required in later phases. Cleaner separation, rest of
+     * RuntimeMetadataEncoderImpl can be cleaned after encoding.
+     */
+    public record EncodedRuntimeMetadataSupplierImpl(Map<AccessibleObject, byte[]> annotationsEncodings,
+                    Map<Executable, byte[]> parameterAnnotationsEncodings,
+                    Map<Method, byte[]> annotationDefaultEncodings,
+                    Map<AccessibleObject, byte[]> typeAnnotationsEncodings,
+                    Map<Executable, byte[]> reflectParametersEncodings) implements EncodedRuntimeMetadataSupplier {
+
+        @Override
+        public byte[] getAnnotationsEncoding(AccessibleObject object) {
+            return annotationsEncodings.get(object);
+        }
+
+        @Override
+        public byte[] getParameterAnnotationsEncoding(Executable object) {
+            return parameterAnnotationsEncodings.get(object);
+        }
+
+        @Override
+        public byte[] getAnnotationDefaultEncoding(Method object) {
+            return annotationDefaultEncodings.get(object);
+        }
+
+        @Override
+        public byte[] getTypeAnnotationsEncoding(AccessibleObject object) {
+            return typeAnnotationsEncodings.get(object);
+        }
+
+        @Override
+        public byte[] getReflectParametersEncoding(Executable object) {
+            return reflectParametersEncodings.get(object);
+        }
+    }
 }

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/phases/EnumSwitchPlugin.java

@@ -95,8 +95,8 @@ public boolean handleInvoke(GraphBuilderContext b, ResolvedJavaMethod m, ValueNo
          * that end up in the same class or in the JDK.
          */
         EnumSwitchFeature feature = ImageSingletons.lookup(EnumSwitchFeature.class);
-        method.ensureGraphParsed(feature.bb);
-        Boolean methodSafeForExecution = feature.methodsSafeForExecution.get(method);
+        method.ensureGraphParsed(feature.getBigBang());
+        Boolean methodSafeForExecution = feature.isMethodsSafeForExecution(method);
         assert methodSafeForExecution != null : "after-parsing hook not executed for method " + method.format("%H.%n(%p)");
         if (!methodSafeForExecution.booleanValue()) {
             return false;
@@ -121,9 +121,9 @@ public boolean handleInvoke(GraphBuilderContext b, ResolvedJavaMethod m, ValueNo
 @AutomaticallyRegisteredFeature
 final class EnumSwitchFeature implements InternalFeature {
 
-    BigBang bb;
+    private BigBang bb;
 
-    final ConcurrentMap<AnalysisMethod, Boolean> methodsSafeForExecution = new ConcurrentHashMap<>();
+    private ConcurrentMap<AnalysisMethod, Boolean> methodsSafeForExecution = new ConcurrentHashMap<>();
 
     @Override
     public void duringSetup(DuringSetupAccess a) {
@@ -142,10 +142,19 @@ private void onMethodParsed(AnalysisMethod method, StructuredGraph graph) {
     @Override
     public void afterAnalysis(AfterAnalysisAccess access) {
         bb = null;
+        methodsSafeForExecution = null;
     }
 
     @Override
     public void registerGraphBuilderPlugins(Providers providers, Plugins plugins, ParsingReason reason) {
         plugins.appendNodePlugin(new EnumSwitchPlugin(reason));
     }
+
+    Boolean isMethodsSafeForExecution(AnalysisMethod method) {
+        return methodsSafeForExecution.get(method);
+    }
+
+    public BigBang getBigBang() {
+        return bb;
+    }
 }

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/reflect/ReflectionDataBuilder.java

@@ -145,8 +145,8 @@ public class ReflectionDataBuilder extends ConditionalConfigurationRegistry impl
     private final Map<Class<?>, Throwable> recordComponentsLookupExceptions = new ConcurrentHashMap<>();
 
     // Intermediate bookkeeping
-    private final Map<Type, Set<Integer>> processedTypes = new ConcurrentHashMap<>();
-    private final Map<Class<?>, Set<Method>> pendingRecordClasses;
+    private Map<Type, Set<Integer>> processedTypes = new ConcurrentHashMap<>();
+    private Map<Class<?>, Set<Method>> pendingRecordClasses;
 
     record ConditionalTask(ConfigurationCondition condition, Consumer<ConfigurationCondition> task) {
     }
@@ -1133,9 +1133,9 @@ private static void reportLinkingErrors(Class<?> clazz, List<Throwable> errors)
 
     protected void afterAnalysis() {
         sealed = true;
-        processedTypes.clear();
+        processedTypes = null;
         if (!throwMissingRegistrationErrors()) {
-            pendingRecordClasses.clear();
+            pendingRecordClasses = null;
         }
     }