June 2012 - core-libs-dev

hg: jdk8/tl/corba: Added tag jdk8-b41 for changeset 113f0d5f0a08
by lana.steuck＠oracle.com 06 Jun '12

06 Jun '12

Changeset: 79cc42c9c71b Author: cl Date: 2012-06-01 14:12 -0700 URL: http://hg.openjdk.java.net/jdk8/tl/corba/rev/79cc42c9c71b Added tag jdk8-b41 for changeset 113f0d5f0a08 ! .hgtags

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hg: jdk8/tl: Added tag jdk8-b41 for changeset 1a8c7c530f8a
by lana.steuck＠oracle.com 06 Jun '12

06 Jun '12

Changeset: 1ce5dc164166 Author: cl Date: 2012-06-01 14:11 -0700 URL: http://hg.openjdk.java.net/jdk8/tl/rev/1ce5dc164166 Added tag jdk8-b41 for changeset 1a8c7c530f8a ! .hgtags

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Failing jdk testcase: java/lang/Math/WorstCaseTests.java
by Kelly O'Hair 05 Jun '12

05 Jun '12

I am seeing this testcase fail on Windows 32&64bit and 32bit Linux&Solaris X86 java/lang/Math/WorstCaseTests.java Does anyone know anything about this? -kto -------------------------------------------------- TEST: java/lang/Math/WorstCaseTests.java JDK under test: (/tmp/jprt/P1/020333.khazra/testproduct/linux_i586_2.6-product) java version "1.8.0-internal" Java(TM) SE Runtime Environment (build 1.8.0-internal-201206050203.khazra.jdk-b00) Java HotSpot(TM) Client VM (build 24.0-b12, mixed mode, sharing) ACTION: build -- Passed. All files up to date REASON: User specified action: run build Tests TIME: 0.001 seconds messages: command: build Tests reason: User specified action: run build Tests elapsed time (seconds): 0.001 ACTION: build -- Passed. Build successful REASON: User specified action: run build WorstCaseTests TIME: 0.091 seconds messages: command: build WorstCaseTests reason: User specified action: run build WorstCaseTests elapsed time (seconds): 0.091 ACTION: compile -- Passed. Compilation successful REASON: .class file out of date or does not exist TIME: 0.091 seconds messages: command: compile /tmp/jprt/P1/020333.khazra/s/test/java/lang/Math/WorstCaseTests.java reason: .class file out of date or does not exist elapsed time (seconds): 0.091 ACTION: build -- Passed. All files up to date REASON: Named class compiled on demand TIME: 0.0 seconds messages: command: build WorstCaseTests reason: Named class compiled on demand elapsed time (seconds): 0.0 ACTION: main -- Failed. Execution failed: `main' threw exception: java.lang.RuntimeException REASON: User specified action: run main WorstCaseTests TIME: 0.046 seconds messages: command: main WorstCaseTests reason: User specified action: run main WorstCaseTests elapsed time (seconds): 0.046 STDERR: Failure for Math.exp: For input -15.273162747858944 (-0x1.e8bdbfcd9144ep3) got 2.327821619714312E-7 (0x1.f3e558cf4de5dp-23); outside of range [2.3278216197143096E-7 (0x1.f3e558cf4de54p-23), 2.3278216197143099E-7 (0x1.f3e558cf4de55p-23)] Failure for Math.exp: For input -5.77934084246919 (-0x1.71e0b869b5e79p2) got 0.0030907520294119885 (0x1.951c6dc5d24dfp-9); outside of range [0.0030907520294119898 (0x1.951c6dc5d24e2p-9), 0.00309075202941199 (0x1.951c6dc5d24e3p-9)] Failure for Math.exp: For input -1.797728508222747 (-0x1.cc37ef7de7501p0) got 0.16567479005430436 (0x1.534d4de870712p-3); outside of range [0.16567479005430438 (0x1.534d4de870713p-3), 0.1656747900543044 (0x1.534d4de870714p-3)] Failure for Math.exp: For input 1.8367220480063033 (0x1.d6336a88077aap0) got 6.27593230200363 (0x1.91a8dff540ff6p2); outside of range [6.275932302003631 (0x1.91a8dff540ff7p2), 6.275932302003632 (0x1.91a8dff540ff8p2)] Failure for Math.exp: For input 11.715807839696332 (0x1.76e7e5d7b6eacp3) got 122492.83772374172 (0x1.de7cd6751029cp16); outside of range [122492.83772374169 (0x1.de7cd6751029ap16), 122492.8377237417 (0x1.de7cd6751029bp16)] Failure for Math.exp: For input 13.278663800537615 (0x1.a8ead058bc6b8p3) got 584588.6991355021 (0x1.1d71965f516aap19); outside of range [584588.6991355025 (0x1.1d71965f516adp19), 584588.6991355026 (0x1.1d71965f516aep19)] Failure for Math.exp: For input 17.83500450381271 (0x1.1d5c2daebe367p4) got 5.567292518201272E7 (0x1.a8c02e974c316p25); outside of range [5.567292518201271E7 (0x1.a8c02e974c314p25), 5.5672925182012714E7 (0x1.a8c02e974c315p25)] Failure for Math.exp: For input 28.26876911181362 (0x1.c44ce0d716a1ap4) got 1.8922148019756777E12 (0x1.b890ca8637ad8p40); outside of range [1.89221480197568E12 (0x1.b890ca8637ae1p40), 1.8922148019756802E12 (0x1.b890ca8637ae2p40)] Testing worst cases incurred 8 failures. java.lang.RuntimeException at WorstCaseTests.main(WorstCaseTests.java:77) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:474) at com.sun.javatest.regtest.MainAction$SameVMRunnable.run(MainAction.java:698) at java.lang.Thread.run(Thread.java:722) JavaTest Message: Test threw exception: java.lang.RuntimeException JavaTest Message: shutting down test TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException --------------------------------------------------

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hg: jdk8/tl/jdk: 6183404: Many eudc characters are incorrectly mapped in MS936 and GBK converter
by xueming.shen＠oracle.com 05 Jun '12

05 Jun '12

Changeset: d1f52390275b Author: sherman Date: 2012-06-05 12:11 -0700 URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/d1f52390275b 6183404: Many eudc characters are incorrectly mapped in MS936 and GBK converter Summary: updated MS936 and GBK mappings Reviewed-by: alanb ! make/tools/CharsetMapping/GBK.map ! make/tools/CharsetMapping/MS936.map

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JNI UTF-8 encoding bug with some characters
by Ariel Weisberg 05 Jun '12

05 Jun '12

Hi all, Not sure what list this should go to. I found an issue with JNI's GetStringUTFChars which is supposed to return a Java string in UTF-8 encoding. There is an attached test case. I tested on Ubuntu 12.04 (Linux aweisberg-desktop 2.6.32-41-generic #89-Ubuntu SMP Fri Apr 27 22:18:56 UTC 2012 x86_64 GNU/Linux) and CentOS 5 (Linux volt3b 2.6.18-308.4.1.el5 #1 SMP Tue Apr 17 17:08:00 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux) with JDK 6 update 32 and JDK 7 update 4. For the following string "â🀲x一xxéyyԱ" I find that the first character is encoded correctly, but the second character (http://www.fileformat.info/info/unicode/char/1f032/index.htm) comes out with an invalid code point. The result of String.getBytes("UTF-8") is c3a2f09f80b278e4b8807878c3a97979d4b1 and this matches the output I get from defining the string as a constant in C++. The result of GetStringUTFChars is c3a2eda0bcedb0b278e4b8. See this test case (https://s3.amazonaws.com/com.voltdb.aweisberg/utf8_encoding_bug.tgz) for a reproducer and how I displayed the values. Thanks, Ariel

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hg: jdk8/tl/jdk: 7173515: (se) Selector.open fails with OOME on Solaris when unlimited file descriptors
by alan.bateman＠oracle.com 05 Jun '12

05 Jun '12

Changeset: 5ea56641276c Author: alanb Date: 2012-06-05 12:47 +0100 URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/5ea56641276c 7173515: (se) Selector.open fails with OOME on Solaris when unlimited file descriptors Reviewed-by: coffeys, chegar - src/share/classes/sun/nio/ch/DevPollSelectorProvider.java ! src/solaris/classes/sun/nio/ch/DevPollArrayWrapper.java + src/solaris/classes/sun/nio/ch/DevPollSelectorProvider.java

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hg: jdk8/tl/jdk: 7172701: KDC tests cleanup
by weijun.wang＠oracle.com 05 Jun '12

05 Jun '12

Changeset: 0678af55d3db Author: weijun Date: 2012-06-05 17:11 +0800 URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/0678af55d3db 7172701: KDC tests cleanup Reviewed-by: xuelei ! test/sun/security/krb5/auto/KDC.java ! test/sun/security/krb5/auto/OkAsDelegate.java ! test/sun/security/krb5/auto/OkAsDelegateXRealm.java - test/sun/security/krb5/auto/ok-as-delegate-xrealm.sh - test/sun/security/krb5/auto/ok-as-delegate.sh

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hg: jdk8/tl/jdk: 7173044: MemoryMonitor hangs if getMax method in MemoryUsage object returns -1
by littlee＠linux.vnet.ibm.com 05 Jun '12

05 Jun '12

Changeset: 4573662cb28c Author: zhouyx Date: 2012-06-05 10:16 +0800 URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/4573662cb28c 7173044: MemoryMonitor hangs if getMax method in MemoryUsage object returns -1 Reviewed-by: dholmes, sspitsyn ! src/share/demo/management/MemoryMonitor/MemoryMonitor.java

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Request for Reviews 7173918&7173919: Small follow-ons to alternative hashing
by Mike Duigou 04 Jun '12

04 Jun '12

Two small issues related to the larger alternative string hashing changes (CR#7126277) from last week. One issue is for JDK 7 and the other is for JDK 8. Both are quite small. For the JDK 7 issue, as documented in the review request, the default threshold for the alternative hashing in that patch was set to the minimum to unconditionally enable the feature. This was done to make compatibility testing easier. Developers are strongly encouraged to test their applications with the 7u6b13 build to ensure that their applications do not later encounter problems. For the release version of 7u6 the default threshold will be set to 512. This patch sets that default and marks one field final. http://cr.openjdk.java.net/~mduigou/7173918/0/webrev/ The JDK8 issue is number of small performance enhancements suggested by Ulf Zibis and Remi Forax. These changes are being considered now while this issue remains fresh in the maintainer and reviewer's minds. http://cr.openjdk.java.net/~mduigou/7173919/0/webrev/ Thanks, Mike

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hg: jdk8/tl/jdk: 7126277: Alternative String hashing implementation
by mike.duigou＠oracle.com 04 Jun '12

04 Jun '12

Changeset: 43bd5ee0205e Author: mduigou Date: 2012-05-30 22:18 -0700 URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/43bd5ee0205e 7126277: Alternative String hashing implementation Summary: All of the hashing based Map implementations: HashMap, Hashtable, LinkedHashMap, WeakHashMap and ConcurrentHashMap are modified to use an enhanced hashing algorithm for string keys when the capacity of the hash table has ever grown beyond 512 entries. The enhanced hashing implementation uses the murmur3 hashing algorithm along with random hash seeds and index masks. These enhancements mitigate cases where colliding String hash values could result in a performance bottleneck. Reviewed-by: alanb, forax, dl ! make/java/java/FILES_java.gmk ! src/share/classes/java/lang/String.java ! src/share/classes/java/util/HashMap.java ! src/share/classes/java/util/Hashtable.java ! src/share/classes/java/util/LinkedHashMap.java ! src/share/classes/java/util/WeakHashMap.java ! src/share/classes/java/util/concurrent/ConcurrentHashMap.java + src/share/classes/sun/misc/Hashing.java ! test/java/util/Collection/BiggernYours.java ! test/java/util/Hashtable/HashCode.java ! test/java/util/Hashtable/SimpleSerialization.java + test/java/util/Map/Collisions.java ! test/java/util/Map/Get.java + test/sun/misc/Hashing.java

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