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test/hotspot/jtreg/runtime/RedefineTests/RedefineRunningMethodsWithBacktrace.java
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rev 50289 : [mq]: jep181-rev5
*** 1,7 ****
/*
! * Copyright (c) 2015, 2016, 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.
--- 1,7 ----
/*
! * 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 21,31 ****
* questions.
*/
/*
* @test
! * @bug 8087315
* @summary Get old method's stack trace elements after GC
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @modules java.compiler
* java.instrument
--- 21,31 ----
* questions.
*/
/*
* @test
! * @bug 8087315 8010319
* @summary Get old method's stack trace elements after GC
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @modules java.compiler
* java.instrument
*** 34,53 ****
* @run main/othervm -javaagent:redefineagent.jar RedefineRunningMethodsWithBacktrace
*/
import static jdk.test.lib.Asserts.*;
public class RedefineRunningMethodsWithBacktrace {
public static String newB =
! "class RedefineRunningMethodsWithBacktrace$B {" +
" static int count1 = 0;" +
" static int count2 = 0;" +
" public static volatile boolean stop = false;" +
" static void localSleep() { " +
" try{ " +
! " Thread.currentThread().sleep(10);" +
" } catch(InterruptedException ie) { " +
" } " +
" } " +
" public static void infinite() { " +
" System.out.println(\"infinite called\");" +
--- 34,95 ----
* @run main/othervm -javaagent:redefineagent.jar RedefineRunningMethodsWithBacktrace
*/
import static jdk.test.lib.Asserts.*;
+ // package access top-level class to avoid problem with RedefineClassHelper
+ // and nested types.
+
+ class RedefineRunningMethodsWithBacktrace_B {
+ static int count1 = 0;
+ static int count2 = 0;
+ public static volatile boolean stop = false;
+ static void localSleep() {
+ try {
+ Thread.sleep(10);//sleep for 10 ms
+ } catch(InterruptedException ie) {
+ }
+ }
+
+ public static void infinite() {
+ while (!stop) { count1++; localSleep(); }
+ }
+ public static void throwable() {
+ // add some stuff to the original constant pool
+ String s1 = new String ("string1");
+ String s2 = new String ("string2");
+ String s3 = new String ("string3");
+ String s4 = new String ("string4");
+ String s5 = new String ("string5");
+ String s6 = new String ("string6");
+ String s7 = new String ("string7");
+ String s8 = new String ("string8");
+ String s9 = new String ("string9");
+ String s10 = new String ("string10");
+ String s11 = new String ("string11");
+ String s12 = new String ("string12");
+ String s13 = new String ("string13");
+ String s14 = new String ("string14");
+ String s15 = new String ("string15");
+ String s16 = new String ("string16");
+ String s17 = new String ("string17");
+ String s18 = new String ("string18");
+ String s19 = new String ("string19");
+ throw new RuntimeException("throwable called");
+ }
+ }
+
public class RedefineRunningMethodsWithBacktrace {
public static String newB =
! "class RedefineRunningMethodsWithBacktrace_B {" +
" static int count1 = 0;" +
" static int count2 = 0;" +
" public static volatile boolean stop = false;" +
" static void localSleep() { " +
" try{ " +
! " Thread.sleep(10);" +
" } catch(InterruptedException ie) { " +
" } " +
" } " +
" public static void infinite() { " +
" System.out.println(\"infinite called\");" +
*** 56,120 ****
" throw new RuntimeException(\"throwable called\");" +
" }" +
"}";
public static String evenNewerB =
! "class RedefineRunningMethodsWithBacktrace$B {" +
" static int count1 = 0;" +
" static int count2 = 0;" +
" public static volatile boolean stop = false;" +
" static void localSleep() { " +
" try{ " +
! " Thread.currentThread().sleep(1);" +
" } catch(InterruptedException ie) { " +
" } " +
" } " +
" public static void infinite() { }" +
" public static void throwable() { " +
" throw new RuntimeException(\"throwable called\");" +
" }" +
"}";
- static class B {
- static int count1 = 0;
- static int count2 = 0;
- public static volatile boolean stop = false;
- static void localSleep() {
- try {
- Thread.currentThread().sleep(10);//sleep for 10 ms
- } catch(InterruptedException ie) {
- }
- }
-
- public static void infinite() {
- while (!stop) { count1++; localSleep(); }
- }
- public static void throwable() {
- // add some stuff to the original constant pool
- String s1 = new String ("string1");
- String s2 = new String ("string2");
- String s3 = new String ("string3");
- String s4 = new String ("string4");
- String s5 = new String ("string5");
- String s6 = new String ("string6");
- String s7 = new String ("string7");
- String s8 = new String ("string8");
- String s9 = new String ("string9");
- String s10 = new String ("string10");
- String s11 = new String ("string11");
- String s12 = new String ("string12");
- String s13 = new String ("string13");
- String s14 = new String ("string14");
- String s15 = new String ("string15");
- String s16 = new String ("string16");
- String s17 = new String ("string17");
- String s18 = new String ("string18");
- String s19 = new String ("string19");
- throw new RuntimeException("throwable called");
- }
- }
-
private static void touchRedefinedMethodInBacktrace(Throwable throwable) {
System.out.println("touchRedefinedMethodInBacktrace: ");
throwable.printStackTrace(); // this actually crashes with the bug in
// java_lang_StackTraceElement::create()
--- 98,123 ----
" throw new RuntimeException(\"throwable called\");" +
" }" +
"}";
public static String evenNewerB =
! "class RedefineRunningMethodsWithBacktrace_B {" +
" static int count1 = 0;" +
" static int count2 = 0;" +
" public static volatile boolean stop = false;" +
" static void localSleep() { " +
" try{ " +
! " Thread.sleep(1);" +
" } catch(InterruptedException ie) { " +
" } " +
" } " +
" public static void infinite() { }" +
" public static void throwable() { " +
" throw new RuntimeException(\"throwable called\");" +
" }" +
"}";
private static void touchRedefinedMethodInBacktrace(Throwable throwable) {
System.out.println("touchRedefinedMethodInBacktrace: ");
throwable.printStackTrace(); // this actually crashes with the bug in
// java_lang_StackTraceElement::create()
*** 131,141 ****
}
private static Throwable getThrowableInB() {
Throwable t = null;
try {
! B.throwable();
} catch (Exception e) {
t = e;
// Don't print here because Throwable will cache the constructed stacktrace
// e.printStackTrace();
}
--- 134,144 ----
}
private static Throwable getThrowableInB() {
Throwable t = null;
try {
! RedefineRunningMethodsWithBacktrace_B.throwable();
} catch (Exception e) {
t = e;
// Don't print here because Throwable will cache the constructed stacktrace
// e.printStackTrace();
}
*** 145,193 ****
public static void main(String[] args) throws Exception {
new Thread() {
public void run() {
! B.infinite();
}
}.start();
Throwable t1 = getThrowableInB();
! RedefineClassHelper.redefineClass(B.class, newB);
System.gc();
Throwable t2 = getThrowableInB();
! B.infinite();
for (int i = 0; i < 20 ; i++) {
String s = new String("some garbage");
System.gc();
}
! RedefineClassHelper.redefineClass(B.class, evenNewerB);
System.gc();
Throwable t3 = getThrowableInB();
for (int i = 0; i < 20 ; i++) {
! B.infinite();
String s = new String("some garbage");
System.gc();
}
touchRedefinedMethodInBacktrace(t1);
touchRedefinedMethodInBacktrace(t2);
touchRedefinedMethodInBacktrace(t3);
// purge should clean everything up.
! B.stop = true;
for (int i = 0; i < 20 ; i++) {
! B.infinite();
String s = new String("some garbage");
System.gc();
}
}
}
--- 148,196 ----
public static void main(String[] args) throws Exception {
new Thread() {
public void run() {
! RedefineRunningMethodsWithBacktrace_B.infinite();
}
}.start();
Throwable t1 = getThrowableInB();
! RedefineClassHelper.redefineClass(RedefineRunningMethodsWithBacktrace_B.class, newB);
System.gc();
Throwable t2 = getThrowableInB();
! RedefineRunningMethodsWithBacktrace_B.infinite();
for (int i = 0; i < 20 ; i++) {
String s = new String("some garbage");
System.gc();
}
! RedefineClassHelper.redefineClass(RedefineRunningMethodsWithBacktrace_B.class, evenNewerB);
System.gc();
Throwable t3 = getThrowableInB();
for (int i = 0; i < 20 ; i++) {
! RedefineRunningMethodsWithBacktrace_B.infinite();
String s = new String("some garbage");
System.gc();
}
touchRedefinedMethodInBacktrace(t1);
touchRedefinedMethodInBacktrace(t2);
touchRedefinedMethodInBacktrace(t3);
// purge should clean everything up.
! RedefineRunningMethodsWithBacktrace_B.stop = true;
for (int i = 0; i < 20 ; i++) {
! RedefineRunningMethodsWithBacktrace_B.infinite();
String s = new String("some garbage");
System.gc();
}
}
}
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