8217512: Message of LinkageError: use 'class' etc. instead of 'type'

Reviewed-by: dholmes, lfoltan
This commit is contained in:
Goetz Lindenmaier 2019-01-23 08:25:22 +01:00
parent 50e3aa4150
commit 69e185b203
2 changed files with 23 additions and 8 deletions

View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1997, 2019, 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
@ -710,15 +710,16 @@ void LinkResolver::check_field_loader_constraints(Symbol* field, Symbol* sig,
stringStream ss; stringStream ss;
const char* failed_type_name = failed_type_symbol->as_klass_external_name(); const char* failed_type_name = failed_type_symbol->as_klass_external_name();
ss.print("loader constraint violation: when resolving field" ss.print("loader constraint violation: when resolving field \"%s\" of type %s, "
" \"%s\" of type %s, the class loader %s of the current class, " "the class loader %s of the current class, %s, "
"%s, and the class loader %s for the field's defining " "and the class loader %s for the field's defining %s, %s, "
"type, %s, have different Class objects for type %s (%s; %s)", "have different Class objects for type %s (%s; %s)",
field->as_C_string(), field->as_C_string(),
failed_type_name, failed_type_name,
current_klass->class_loader_data()->loader_name_and_id(), current_klass->class_loader_data()->loader_name_and_id(),
current_klass->external_name(), current_klass->external_name(),
sel_klass->class_loader_data()->loader_name_and_id(), sel_klass->class_loader_data()->loader_name_and_id(),
sel_klass->external_kind(),
sel_klass->external_name(), sel_klass->external_name(),
failed_type_name, failed_type_name,
current_klass->class_in_module_of_loader(false, true), current_klass->class_in_module_of_loader(false, true),

View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2019, 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
@ -31,7 +31,7 @@
import java.lang.reflect.Method; import java.lang.reflect.Method;
// Check that LinkageError loader constraint message for fields contains the // Check that the LinkageError loader constraint message for fields contains the
// correct information. // correct information.
// //
// The test creates two class loaders. The first class loader loads classes // The test creates two class loaders. The first class loader loads classes
@ -40,6 +40,20 @@ import java.lang.reflect.Method;
// Class Child tries to load Parent._field1. This should fail because type Foo // Class Child tries to load Parent._field1. This should fail because type Foo
// for Parent._field1 is a different type than Child's Foo. // for Parent._field1 is a different type than Child's Foo.
// //
// Grand (ldr1) has field _field1 of type Foo(ldr1)
// |
// Parent (ldr2) has field _field1 of type Foo(ldr2)
// |
// Child (ldr1)
//
// java.lang.LinkageError: loader constraint violation:
// when resolving field "_field1" of type pkg.Foo,
// the class loader pkg.ClassLoaderForChildGrandFoo @42b2e259 of the current class, pkg.Child,
// and the class loader pkg.ClassLoaderForParentFoo @4b55c90f for the field's defining class, pkg.Parent,
// have different Class objects for type pkg.Foo
// (pkg.Child is in unnamed module of loader pkg.ClassLoaderForChildGrandFoo @42b2e259, parent loader 'app';
// pkg.Parent is in unnamed module of loader pkg.ClassLoaderForParentFoo @4b55c90f, parent loader 'app')
//
public class LdrCnstrFldMsgTest { public class LdrCnstrFldMsgTest {
public static void main(String... args) throws Exception { public static void main(String... args) throws Exception {
ClassLoader l = new pkg.ClassLoaderForChildGrandFoo("pkg.Foo", "pkg.Child", "pkg.Grand"); ClassLoader l = new pkg.ClassLoaderForChildGrandFoo("pkg.Foo", "pkg.Child", "pkg.Grand");
@ -51,7 +65,7 @@ public class LdrCnstrFldMsgTest {
r.run(); r.run();
throw new RuntimeException("Expected LinkageError exception not thrown"); throw new RuntimeException("Expected LinkageError exception not thrown");
} catch (java.lang.LinkageError e) { } catch (java.lang.LinkageError e) {
if (!e.getMessage().contains("for the field's defining type, pkg.Parent,") || if (!e.getMessage().contains("for the field's defining class, pkg.Parent,") ||
!e.getMessage().contains("have different Class objects for type pkg.Foo")) { !e.getMessage().contains("have different Class objects for type pkg.Foo")) {
throw new RuntimeException("Wrong LinkageError exception thrown: " + e.toString()); throw new RuntimeException("Wrong LinkageError exception thrown: " + e.toString());
} }