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8211065: Private method check in linkResolver is incorrect

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Reviewed-by: acorn, lfoltan
This commit is contained in:
David Holmes 2018-10-09 20:19:22 -04:00
parent d3458328a2
commit 8351e4db3e
5 changed files with 386 additions and 28 deletions
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18
src/hotspot/share/interpreter/linkResolver.cpp
View File

@ -793,24 +793,6 @@ methodHandle LinkResolver::resolve_method(const LinkInfo& link_info,
check_method_loader_constraints(link_info, resolved_method, "method", CHECK_NULL); check_method_loader_constraints(link_info, resolved_method, "method", CHECK_NULL);
} }
// For private method invocation we should only find the method in the resolved class.
// If that is not the case then we have a found a supertype method that we have nestmate
// access to.
if (resolved_method->is_private() && resolved_method->method_holder() != resolved_klass) {
ResourceMark rm(THREAD);
DEBUG_ONLY(bool is_nestmate = InstanceKlass::cast(link_info.current_klass())->has_nestmate_access_to(InstanceKlass::cast(resolved_klass), THREAD);)
assert(is_nestmate, "was only expecting nestmates to get here!");
Exceptions::fthrow(
THREAD_AND_LOCATION,
vmSymbols::java_lang_NoSuchMethodError(),
"%s: method %s%s not found",
resolved_klass->external_name(),
resolved_method->name()->as_C_string(),
resolved_method->signature()->as_C_string()
);
return NULL;
}
return resolved_method; return resolved_method;
} }

12
test/hotspot/jtreg/runtime/Nestmates/privateMethods/TestInvokeErrors.java
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -23,7 +23,7 @@
/* /*
* @test * @test
* @bug 8046171 * @bug 8046171 8211065
* @summary Setup nestmate calls to private methods then use * @summary Setup nestmate calls to private methods then use
* modified jcod classes to introduce errors. Test with * modified jcod classes to introduce errors. Test with
* and without verification enabled * and without verification enabled
@ -96,14 +96,10 @@ public class TestInvokeErrors {
System.out.println("Got expected exception:" + nsme); System.out.println("Got expected exception:" + nsme);
} }
try { // This test was revised to expect successful invocation of the
// super class method - see JDK-8211065
MissingMethodWithSuper m = new MissingMethodWithSuper(); MissingMethodWithSuper m = new MissingMethodWithSuper();
m.priv_invoke(); m.priv_invoke();
throw new Error("Unexpected success invoking MissingMethodWithSuper.priv_invoke");
}
catch (NoSuchMethodError nsme) {
System.out.println("Got expected exception:" + nsme);
}
// Verification of Helper will trigger the nestmate access check failure // Verification of Helper will trigger the nestmate access check failure
try { try {

65
test/hotspot/jtreg/runtime/linkResolver/TestDeletedMethod.java Normal file
View File

@ -0,0 +1,65 @@
/*
* Copyright (c) 2018, 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 8211065
* @summary Test that deleting a subclass method implementation results in
* execution of a superclass implementation - if it is accessible.
* @compile TestDeletedMethod.java
* @compile TestDeletedMethod_Sub.jcod TestDeletedMethod_Super.jcod
* @run main/othervm -XX:+RelaxAccessControlCheck TestDeletedMethod
*/
// The access control relaxation was originally done to ensure an assertion
// in the nestmate logic would not trigger unintentionally because it
// assumed only nestmates could be involved. The assertion no longer exists
// but we keep the test as a non-nestmate version of the situation.
/* package */ class TestDeletedMethod_Super {
public static final int ID = 2;
private static int m() {
System.out.println("Super.m");
return ID;
}
}
/* package */ class TestDeletedMethod_Sub extends TestDeletedMethod_Super {
public static final int ID = 1;
// At runtime this implementation is not present
private static int m() {
System.out.println("Sub.m");
return ID;
}
public static int test() {
return TestDeletedMethod_Sub.m();
}
}
public class TestDeletedMethod {
public static void main(String[] args) {
int x = TestDeletedMethod_Sub.test();
if (x != TestDeletedMethod_Super.ID)
throw new RuntimeException("Wrong method invoked: " + x);
}
}

172
test/hotspot/jtreg/runtime/linkResolver/TestDeletedMethod_Sub.jcod Normal file
View File

@ -0,0 +1,172 @@
/*
* Copyright (c) 2018, 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.
*/
// We have deleted the local method m() by renaming it
// We have set the class file version to 49 to allow relaxed access checks
class TestDeletedMethod_Sub {
0xCAFEBABE;
0; // minor version
49; // version
[] { // Constant Pool
; // first element is empty
Method #7 #21; // #1
Field #22 #23; // #2
String #24; // #3
Method #25 #26; // #4
class #27; // #5
Method #5 #28; // #6
class #29; // #7
Utf8 "ID"; // #8
Utf8 "I"; // #9
Utf8 "ConstantValue"; // #10
int 0x00000001; // #11
Utf8 "<init>"; // #12
Utf8 "()V"; // #13
Utf8 "Code"; // #14
Utf8 "LineNumberTable"; // #15
Utf8 "m"; // #16
Utf8 "()I"; // #17
Utf8 "test"; // #18
Utf8 "SourceFile"; // #19
Utf8 "TestDeletedMethod.java"; // #20
NameAndType #12 #13; // #21
class #30; // #22
NameAndType #31 #32; // #23
Utf8 "Sub.m"; // #24
class #33; // #25
NameAndType #34 #35; // #26
Utf8 "TestDeletedMethod_Sub"; // #27
NameAndType #16 #17; // #28
Utf8 "TestDeletedMethod_Super"; // #29
Utf8 "java/lang/System"; // #30
Utf8 "out"; // #31
Utf8 "Ljava/io/PrintStream;"; // #32
Utf8 "java/io/PrintStream"; // #33
Utf8 "println"; // #34
Utf8 "(Ljava/lang/String;)V"; // #35
Utf8 "m_renamed"; // #36 added
} // Constant Pool
0x0020; // access
#5;// this_cpx
#7;// super_cpx
[] { // Interfaces
} // Interfaces
[] { // fields
{ // Member
0x0019; // access
#8; // name_cpx
#9; // sig_cpx
[] { // Attributes
Attr(#10) { // ConstantValue
#11;
} // end ConstantValue
} // Attributes
} // Member
} // fields
[] { // methods
{ // Member
0x0000; // access
#12; // name_cpx
#13; // sig_cpx
[] { // Attributes
Attr(#14) { // Code
1; // max_stack
1; // max_locals
Bytes[]{
0x2AB70001B1;
};
[] { // Traps
} // end Traps
[] { // Attributes
Attr(#15) { // LineNumberTable
[] { // LineNumberTable
0 43;
}
} // end LineNumberTable
} // Attributes
} // end Code
} // Attributes
} // Member
;
{ // Member
0x000A; // access
#36; // name_cpx UPDATED to rename method
#17; // sig_cpx
[] { // Attributes
Attr(#14) { // Code
2; // max_stack
0; // max_locals
Bytes[]{
0xB200021203B60004;
0x04AC;
};
[] { // Traps
} // end Traps
[] { // Attributes
Attr(#15) { // LineNumberTable
[] { // LineNumberTable
0 47;
8 48;
}
} // end LineNumberTable
} // Attributes
} // end Code
} // Attributes
} // Member
;
{ // Member
0x0009; // access
#18; // name_cpx
#17; // sig_cpx
[] { // Attributes
Attr(#14) { // Code
1; // max_stack
0; // max_locals
Bytes[]{
0xB80006AC;
};
[] { // Traps
} // end Traps
[] { // Attributes
Attr(#15) { // LineNumberTable
[] { // LineNumberTable
0 51;
}
} // end LineNumberTable
} // Attributes
} // end Code
} // Attributes
} // Member
} // methods
[] { // Attributes
Attr(#19) { // SourceFile
#20;
} // end SourceFile
} // Attributes
} // end class TestDeletedMethod_Sub

143
test/hotspot/jtreg/runtime/linkResolver/TestDeletedMethod_Super.jcod Normal file
View File

@ -0,0 +1,143 @@
/*
* Copyright (c) 2018, 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.
*/
// We have set the class file version to 49 to allow relaxed access checks
class TestDeletedMethod_Super {
0xCAFEBABE;
0; // minor version
49; // version
[] { // Constant Pool
; // first element is empty
Method #6 #19; // #1
Field #20 #21; // #2
String #22; // #3
Method #23 #24; // #4
class #25; // #5
class #26; // #6
Utf8 "ID"; // #7
Utf8 "I"; // #8
Utf8 "ConstantValue"; // #9
int 0x00000002; // #10
Utf8 "<init>"; // #11
Utf8 "()V"; // #12
Utf8 "Code"; // #13
Utf8 "LineNumberTable"; // #14
Utf8 "m"; // #15
Utf8 "()I"; // #16
Utf8 "SourceFile"; // #17
Utf8 "TestDeletedMethod.java"; // #18
NameAndType #11 #12; // #19
class #27; // #20
NameAndType #28 #29; // #21
Utf8 "Super.m"; // #22
class #30; // #23
NameAndType #31 #32; // #24
Utf8 "TestDeletedMethod_Super"; // #25
Utf8 "java/lang/Object"; // #26
Utf8 "java/lang/System"; // #27
Utf8 "out"; // #28
Utf8 "Ljava/io/PrintStream;"; // #29
Utf8 "java/io/PrintStream"; // #30
Utf8 "println"; // #31
Utf8 "(Ljava/lang/String;)V"; // #32
} // Constant Pool
0x0020; // access
#5;// this_cpx
#6;// super_cpx
[] { // Interfaces
} // Interfaces
[] { // fields
{ // Member
0x0019; // access
#7; // name_cpx
#8; // sig_cpx
[] { // Attributes
Attr(#9) { // ConstantValue
#10;
} // end ConstantValue
} // Attributes
} // Member
} // fields
[] { // methods
{ // Member
0x0000; // access
#11; // name_cpx
#12; // sig_cpx
[] { // Attributes
Attr(#13) { // Code
1; // max_stack
1; // max_locals
Bytes[]{
0x2AB70001B1;
};
[] { // Traps
} // end Traps
[] { // Attributes
Attr(#14) { // LineNumberTable
[] { // LineNumberTable
0 35;
}
} // end LineNumberTable
} // Attributes
} // end Code
} // Attributes
} // Member
;
{ // Member
0x000A; // access
#15; // name_cpx
#16; // sig_cpx
[] { // Attributes
Attr(#13) { // Code
2; // max_stack
0; // max_locals
Bytes[]{
0xB200021203B60004;
0x05AC;
};
[] { // Traps
} // end Traps
[] { // Attributes
Attr(#14) { // LineNumberTable
[] { // LineNumberTable
0 38;
8 39;
}
} // end LineNumberTable
} // Attributes
} // end Code
} // Attributes
} // Member
} // methods
[] { // Attributes
Attr(#17) { // SourceFile
#18;
} // end SourceFile
} // Attributes
} // end class TestDeletedMethod_Super