8314552: Fix javadoc tests to work with jtreg 7

Reviewed-by: phh
Backport-of: e83046409d81d074cd68dc823e794a852ed93cee

test/langtools/jdk/javadoc/doclet/testSerialVersionUID/TestSerialVersionUID.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2023, 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
@@ -42,7 +42,8 @@ public static void main(String... args) throws Exception {
 
     @Test
     void test() {
-        javadoc("-d", "out",
+        javadoc("-encoding", "UTF-8",
+                "-d", "out",
                 testSrc("C.java"));
         checkExit(Exit.OK);
 

test/langtools/jdk/javadoc/doclet/testTagMisuse/TestTagMisuse.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2023, 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
@@ -45,7 +45,8 @@ public static void main(String... args) throws Exception {
 
     @Test
     void test() {
-        javadoc("-Xdoclint:none",
+        javadoc("-encoding", "UTF-8",
+                "-Xdoclint:none",
                 "-d", "out",
                 testSrc("TestTagMisuse.java"));
         checkExit(Exit.OK);

test/langtools/jdk/javadoc/doclet/testThrowsHead/TestThrowsHead.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2023, 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
@@ -43,7 +43,8 @@ public static void main(String... args) throws Exception {
 
     @Test
     void test() {
-        javadoc("-d", "out",
+        javadoc("-encoding", "UTF-8",
+                "-d", "out",
                 testSrc("C.java"));
         checkExit(Exit.OK);
 

test/langtools/jdk/javadoc/doclet/testUnnamedPackage/TestUnnamedPackage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2023, 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
@@ -42,7 +42,8 @@ public static void main(String... args) throws Exception {
 
     @Test
     void test() {
-        javadoc("-d", "out",
+        javadoc("-encoding", "UTF-8",
+                "-d", "out",
                 "-sourcepath", testSrc,
                 testSrc("C.java"));
         checkExit(Exit.OK);

test/langtools/jdk/javadoc/tool/nonConstExprs/Test.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2023, 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
@@ -34,6 +34,7 @@ public class Test {
     public static void main(String... args) throws Exception {
         File testSrc = new File(System.getProperty("test.src"));
         String[] jdoc_args = {
+            "-encoding", "UTF-8",
             "-d", "out",
             new File(testSrc, Test.class.getSimpleName() + ".java").getPath()
         };