8274714: Incorrect verifier protected access error message

Reviewed-by: dholmes, coleenp

Author: Harold Seigel

src/hotspot/share/classfile/verifier.cpp

@@ -1805,7 +1805,7 @@ void ClassVerifier::verify_method(const methodHandle& m, TRAPS) {
           no_control_flow = true; break;
         default:
           // We only need to check the valid bytecodes in class file.
-          // And jsr and ret are not in the new class file format in JDK1.5.
+          // And jsr and ret are not in the new class file format in JDK1.6.
           verify_error(ErrorContext::bad_code(bci),
               "Bad instruction: %02x", opcode);
           no_control_flow = false;
@@ -2424,7 +2424,8 @@ void ClassVerifier::verify_field_instructions(RawBytecodeStream* bcs,
           verify_error(ErrorContext::bad_type(bci,
               current_frame->stack_top_ctx(),
               TypeOrigin::implicit(current_type())),
-              "Bad access to protected data in getfield");
+              "Bad access to protected data in %s",
+              is_getfield ? "getfield" : "putfield");
           return;
         }
       }

test/hotspot/jtreg/runtime/verifier/PutfieldProtectedTest.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2021, 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
+ * @bug 8274714
+ * @summary Make sure error message for protected putfield error is correct.
+ * @compile putfieldProtected.jasm
+ * @run main/othervm -Xverify:remote PutfieldProtectedTest
+ */
+
+// Test that an int[] is not assignable to byte[].
+public class PutfieldProtectedTest {
+
+    public static void main(String args[]) throws Throwable {
+        try {
+            Class newClass = Class.forName("other.putfieldProtected");
+            throw new RuntimeException("Expected VerifyError exception not thrown");
+        } catch (java.lang.VerifyError e) {
+            if (!e.getMessage().contains("Bad access to protected data in putfield")) {
+                throw new RuntimeException("wrong exception: " + e.getMessage());
+            }
+        }
+    }
+}

test/hotspot/jtreg/runtime/verifier/putfieldProtected.jasm

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2021, 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.
+ */
+
+// This .jasm file is needed for this test to ensure that the illegal protected
+// access is done at runtime.  Otherwise, javac would detect and complain about
+// the illegal access
+super public class another/SuperC version 51:0 {
+    protected Field f:I;
+
+    public Method "<init>":"()V" stack 1 locals 1 {
+        aload_0;
+        invokespecial Method java/lang/Object."<init>":"()V";
+        return;
+    }
+} // end Class another/SuperC
+
+
+super public class other/putfieldProtected extends another/SuperC version 51:0 {
+
+    public Method "<init>":"()V" stack 1 locals 1 {
+        aload_0;
+        invokespecial Method another/SuperC."<init>":"()V";
+        return;
+    }
+
+    public static Method run:"()Z" stack 2 locals 2 {
+        new class another/SuperC;
+        dup;
+        invokespecial Method another/SuperC."<init>":"()V";
+        iconst_1;
+        putfield Field another/SuperC.f:"I";
+        iconst_1;
+        ireturn;
+    }
+
+} // end Class other/putfieldProtected