param array size check

src/jdk.compiler/share/classes/com/sun/tools/javac/code/TypeAnnotations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -54,6 +54,7 @@
 import com.sun.tools.javac.comp.Attr;
 import com.sun.tools.javac.comp.AttrContext;
 import com.sun.tools.javac.comp.Env;
+import com.sun.tools.javac.resources.CompilerProperties;
 import com.sun.tools.javac.resources.CompilerProperties.Errors;
 import com.sun.tools.javac.resources.CompilerProperties.Fragments;
 import com.sun.tools.javac.tree.JCTree;
@@ -1401,6 +1402,7 @@ public void visitNewArray(JCNewArray tree) {
                 }
             }
             scan(tree.elems);
+            checkArraySize(tree.elems);
         }
 
         private void findPosition(JCTree tree, JCTree frame, List<JCAnnotation> annotations) {
@@ -1423,6 +1425,12 @@ private void setTypeAnnotationPos(List<JCAnnotation> annotations, TypeAnnotation
             }
         }
 
+        private void checkArraySize(List<JCExpression> tree) {
+            //check if attribute length exceeds maximum unsigned 16-bit value
+            if (tree != null && !sigOnly && (tree.size() >>> 16) > 0) {
+                    log.warning(tree.getFirst().pos(), CompilerProperties.Warnings.ProcAnnotationArrayTooLarge);
+                }
+        }
 
         @Override
         public String toString() {

src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties

@@ -2235,6 +2235,9 @@ compiler.warn.proc.duplicate.option.name=\
 compiler.warn.proc.duplicate.supported.annotation=\
     Duplicate supported annotation interface ''{0}'' returned by annotation processor ''{1}''
 
+compiler.warn.proc.annotation.array.too.large=\
+    Annotation array element too large, length exceeds limit of 65535
+
 # 0: string
 compiler.warn.proc.redundant.types.with.wildcard=\
     Annotation processor ''{0}'' redundantly supports both ''*'' and other annotation interfaces

test/langtools/tools/javac/annotations/ParameterArraySizeLimit.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test ParameterArraySizeLimit
+ * @library /tools/lib
+ * @run main ParameterArraySizeLimit
+ */
+
+import com.sun.source.util.JavacTask;
+
+import javax.tools.*;
+import java.io.IOException;
+import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Collections;
+import java.util.List;
+
+public class ParameterArraySizeLimit {
+
+    public static void main(String[] args) throws IOException {
+        JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
+        DiagnosticListener<? super JavaFileObject> noErrors = d -> {
+//            if (d.getCode().equals("compiler.err.class.public.should.be.in.file")) {
+            System.err.println("aight");
+//            }
+        };
+        JavacTask task = (JavacTask) javaCompiler.getTask(
+                null,
+                null,
+                noErrors,
+                null,
+                null,
+                Collections.singletonList(
+                        SimpleJavaFileObject.forSource(
+                                URI.create("myfo:/MyClass_65536.java"),
+                                Files.readString(Paths.get("/Users/nizarbenalla/Work/jdk-repos/mainline/open/test/langtools/tools/javac/annotations/ParameterArraySizeLimit.txt")))));
+        task.analyze();
+    }
+}