Do not allow jdk.internal.jimage.NativeImageBuffer at image-runtime

Author: olpaw

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

@@ -28,6 +28,7 @@
 import java.io.IOException;
 import java.net.URL;
 import java.net.URLConnection;
+import java.nio.ByteBuffer;
 import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -178,3 +179,20 @@ final class Target_jdk_internal_jrtfs_JrtFileSystemProvider_JRTDisabled {
 }
 
 // endregion Disable jimage/jrtfs
+
+@TargetClass(className = "jdk.internal.jimage.BasicImageReader")
+final class Target_jdk_internal_jimage_BasicImageReader {
+    /* Ensure NativeImageBuffer never gets used as part of using BasicImageReader */
+    @Alias //
+    @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.FromAlias, isFinal = true) //
+    static boolean USE_JVM_MAP = false;
+}
+
+@TargetClass(className = "jdk.internal.jimage.NativeImageBuffer")
+@Substitute
+final class Target_jdk_internal_jimage_NativeImageBuffer {
+    @Substitute
+    static ByteBuffer getNativeMap(String imagePath) {
+        throw VMError.unsupportedFeature("Using jdk.internal.jimage.NativeImageBuffer is not supported");
+    }
+}