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8197901: Crash during GC when logging level is debug

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Reviewed-by: dholmes, coleenp
This commit is contained in:
Leonid Mesnik 2018-02-23 13:55:49 -08:00 committed by Leonid Mesnik
parent 03c754baa0
commit 2471caab08
3 changed files with 20 additions and 25 deletions
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24
src/hotspot/share/oops/klass.cpp
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@ -577,21 +577,15 @@ const char* Klass::external_name() const {
if (is_instance_klass()) {
const InstanceKlass* ik = static_cast<const InstanceKlass*>(this);
if (ik->is_anonymous()) {
intptr_t hash = 0;
if (ik->java_mirror() != NULL) {
// java_mirror might not be created yet, return 0 as hash.
hash = ik->java_mirror()->identity_hash();
}
char hash_buf[40];
sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
size_t hash_len = strlen(hash_buf);
size_t result_len = name()->utf8_length();
char* result = NEW_RESOURCE_ARRAY(char, result_len + hash_len + 1);
name()->as_klass_external_name(result, (int) result_len + 1);
assert(strlen(result) == result_len, "");
strcpy(result + result_len, hash_buf);
assert(strlen(result) == result_len + hash_len, "");
char addr_buf[20];
jio_snprintf(addr_buf, 20, "/" INTPTR_FORMAT, p2i(ik));
size_t addr_len = strlen(addr_buf);
size_t name_len = name()->utf8_length();
char* result = NEW_RESOURCE_ARRAY(char, name_len + addr_len + 1);
name()->as_klass_external_name(result, (int) name_len + 1);
assert(strlen(result) == name_len, "");
strcpy(result + name_len, addr_buf);
assert(strlen(result) == name_len + addr_len, "");
return result;
}
}

7
test/hotspot/jtreg/runtime/RedefineTests/RedefineRunningMethods.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 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
@ -23,7 +23,7 @@
/*
* @test
* @bug 8055008
* @bug 8055008 8197901
* @summary Redefine EMCP and non-EMCP methods that are running in an infinite loop
* @library /test/lib
* @modules java.base/jdk.internal.misc
@ -31,8 +31,9 @@
* java.instrument
* jdk.jartool/sun.tools.jar
* @run main RedefineClassHelper
* @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class+iklass+add=trace,redefine+class+iklass+purge=trace RedefineRunningMethods
* @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class+iklass+add=trace,redefine+class+iklass+purge=trace,all=trace:file=all.log RedefineRunningMethods
*/
// Test is executed with full trace logging redirected to a file to ensure there is no crash during logging anonymous classes - see JDK-8197901
public class RedefineRunningMethods {
public static String newB =

14
test/jdk/java/lang/StackWalker/VerifyStackTrace.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 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
@ -36,7 +36,7 @@ import static java.lang.StackWalker.Option.*;
/**
* @test
* @bug 8140450
* @bug 8140450 8197901
* @summary Verify stack trace information obtained with respect to StackWalker
* options, when the stack contains lambdas, method handle invoke
* virtual calls, and reflection.
@ -131,10 +131,10 @@ public class VerifyStackTrace {
// test output in here (don't forget the final \n):
private final String expected =
"1: VerifyStackTrace.lambda$test$1(VerifyStackTrace.java:213)\n" +
"2: VerifyStackTrace$$Lambda$1/662441761.run(Unknown Source)\n" +
"2: VerifyStackTrace$$Lambda$1/0x00000007c0089430.run(Unknown Source)\n" +
"3: VerifyStackTrace$Handle.execute(VerifyStackTrace.java:149)\n" +
"4: java.base/java.lang.invoke.LambdaForm$DMH/2008017533.invokeVirtual_LL_V(LambdaForm$DMH)\n" +
"5: java.base/java.lang.invoke.LambdaForm$MH/1395089624.invoke_MT(LambdaForm$MH)\n" +
"4: java.base/java.lang.invoke.LambdaForm$DMH/0x00000007c008a830.invokeVirtual_LL_V(LambdaForm$DMH)\n" +
"5: java.base/java.lang.invoke.LambdaForm$MH/0x00000007c008a830.invoke_MT(LambdaForm$MH)\n" +
"6: VerifyStackTrace$Handle.run(VerifyStackTrace.java:162)\n" +
"7: VerifyStackTrace.invoke(VerifyStackTrace.java:192)\n" +
"8: java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n" +
@ -201,8 +201,8 @@ public class VerifyStackTrace {
// out before comparing. We also erase the hash-like names of
// synthetic frames introduced by lambdas & method handles
return produced.replaceAll(":[1-9][0-9]*\\)", ":00)")
.replaceAll("/[0-9]+\\.run", "/xxxxxxxx.run")
.replaceAll("/[0-9]+\\.invoke", "/xxxxxxxx.invoke")
.replaceAll("/0x[0-9a-f]+\\.run", "/xxxxxxxx.run")
.replaceAll("/0x[0-9a-f]+\\.invoke", "/xxxxxxxx.invoke")
// LFs may or may not be pre-generated, making frames differ
.replaceAll("DirectMethodHandle\\$Holder", "LambdaForm\\$DMH")
.replaceAll("Invokers\\$Holder", "LambdaForm\\$MH")