J9

Keytool error importing SSL certificate into J9 keystore

别等时光非礼了梦想. 提交于 2019-12-11 04:19:59
问题 We trying to import main certificate into keystore caserts J9 mobile VM. The exception: keytool error: java.security.NoSuchAlgorithmException: 1.2.840.113549.1.1.11 Certificates algorithm is sha2-256 with 2048 bit key (or 4096 bit in production environment). We can't change private certificate. The only VM we can run Maximo Mobile on Windows Mobile 6.5 is J9. We tried J9 2.2 and J9 2.4. We have 300 expensive Win Mobile devices bought by our client and we stuck. Please help us. More Info Specs

What's the default heap size for IBM's J9VM?

做~自己de王妃 提交于 2019-12-08 00:57:47
问题 I have IBM's J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3) installed. After getting an OOM, the size of the heap dump is 383MB. How much heap does the JVM have? The reason why I ask is that a 400MB heap dump seems a bit much for the default 64MB heap that I expect but I didn't specify any -Xm options. Does J9 use a different default heap size? If so, how can I find out what it is? 回答1: According to the documentation, the default minimum and maximum heap sizes are platform-dependent. On most

Downloading IBM J9 JDK [closed]

有些话、适合烂在心里 提交于 2019-12-06 18:30:02
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . I have the following questions on IBM J9 JDK/JRE. Does any one know the location where I can download the latest J9 JDK? I googed it and couldn't find the location. What is the relation between IBM J9 JDK and Apache Harmony project? Thank you. 回答1: As McDowell suggested in his comment. You can get the J9 JDK from

PLSQL Developer 9.0注册码

和自甴很熟 提交于 2019-12-06 15:37:06
PLSQL Developer 9.0注册码 2014年02月21日 15:16:32 zhengqiqiqinqin 阅读数:3166更多 个人分类: Oracle学习 原文地址: http://blog.sina.com.cn/s/blog_a23e4a8801013mu2.html PLSQL Developer 9.0注册码 Product Code:46jw8l8ymfmp2twwbuur8j9gv978m2q2du serial Number:307254 password:xs374ca 注册之后亲测可以。时间截止到9999-31-12。希望大家也希望能够活到这么多岁哈。- 、- 仅用于学习。不要用做商业用途,否则后果自负。 来源: oschina 链接: https://my.oschina.net/u/3367404/blog/2245985

What's the default heap size for IBM's J9VM?

喜你入骨 提交于 2019-12-06 05:25:31
I have IBM's J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3) installed. After getting an OOM, the size of the heap dump is 383MB. How much heap does the JVM have? The reason why I ask is that a 400MB heap dump seems a bit much for the default 64MB heap that I expect but I didn't specify any -Xm options. Does J9 use a different default heap size? If so, how can I find out what it is? According to the documentation , the default minimum and maximum heap sizes are platform-dependent. On most platforms, default -Xms is 4M. Default -Xmx for Linux is "Half the real memory with a minimum of 16 MB and a

Downloading IBM J9 JDK [closed]

余生颓废 提交于 2019-12-04 23:53:25
Closed. This question is off-topic . It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . I have the following questions on IBM J9 JDK/JRE. Does any one know the location where I can download the latest J9 JDK? I googed it and couldn't find the location. What is the relation between IBM J9 JDK and Apache Harmony project? Thank you. Favonius As McDowell suggested in his comment. You can get the J9 JDK from this link: https://developer.ibm.com/javasdk/downloads/ . Specifically.. Linux - https://www.ibm

Java升级那么快,多个版本如何灵活切换和管理?

丶灬走出姿态 提交于 2019-12-04 19:49:47
前言 近两年,Java 版本升级频繁,感觉刚刚掌握 Java8,写本文时,已听到 java14 的消息,无论是尝鲜新特性( Java12 中 Collectors.teeing 超强功能使用 ),还是由于项目升级/兼容需要,我们可能都要面临管理多个 Java 版本的情 另外 Oracle 自 Java11 开始,更改了用户协议,任何商用都会收费。在写本文时,得到消息「微软宣布加入 OpenJDK」,打不过就选择 OpenJDK。随便 G 一下,当个故事了解就可以 配置单个 Java 环境变量本身没什么技术含量可言,但当需要管理多个 Java 版本,重复配置环境变量显然是非常枯燥的,按照传统的配置方式我们又不能灵活的切换 Java 版本 那要如何轻松管理与使用多个版本 Java? 多版本 Java 管理 显然我们不是第一个有这种困境的人,我所知道的现有方案有三种: Jabba jenv sdkman 本文主要说明如何通过 sdkman 打破我们面临的困境,帮助我们灵活配置与使用 Java sdkman 介绍 SDKMAN 是一个用于在大多数基于 Unix 系统上管理 多个软件开发工具包 (Java, Groovy, Scala, Kotlin and Ceylon. Ant, Gradle 等) 的并行版本的工具 。 它提供了一个方便的命令行接口 (CLI) 和 API,用于 安装

Memory leaking without objects growing in number or size

假装没事ソ 提交于 2019-12-04 16:33:16
问题 On an IBM iSeries system, I have a Java program running - an application server with a web server component, all in-house developed. When running on the 32 bit or 64 bit J9 JVM (IBM Technology for Java) I have symptoms of a memory leak. Note that no problems are seen running this software on the iSeries classic JVM, on multiple Sun/Oracle JVMs and on Linux JVMs. Heck, I routinely leave the identical software running for weeks at a time on my wife's entry-level laptop while I am working on my

360常用小工具分享 独立版 360驱动网卡版

江枫思渺然 提交于 2019-12-04 10:43:21
有些朋友为了修复断网或者修复LSP,都会选择去下载360,用完再删除有些麻烦。所以自己收集了18个实用小工具独立版本方便坛友使用。只做分享,不喜勿喷。 360驱动网卡版:链接: https://pan.baidu.com/s/1NvyJUWVCy5VyX0RXOEEyFA 提取码: tq4s 独立版360常用小工具: 文件名 大小 下载地址 密码 360主页修复 单文件独立版.7z 10.38 M https://www.90pan.com/b1544176 14ly 360文件粉碎机 单文件独立版.7z 3.29 M https://www.90pan.com/b1544175 87v9 360手机助手 v2.5.1.1600 绿色独立版.7z 11.90 M https://www.90pan.com/b1544174 j479 360软件管家 v7.1.0.1125 绿色独立版.7z 12.45 M https://www.90pan.com/b1544173 k0j9 360任务管理器 单文件独立版.7z 8.62 M https://www.90pan.com/b1544172 rjuq 360免费WIFI -5.3.0.3085 -色独立版.7z 13.10 M https://www.90pan.com/b1544171 1v3q 360宽带测速器 单文件独立版.7z

JVM中的OopMap

梦想与她 提交于 2019-12-04 06:45:53
调用栈里的引用类型数据是GC的根集合(root set)的重要组成部分;找出栈上的引用是GC的根枚举(root enumeration)中不可或缺的一环。 JVM选择用什么方式会影响到GC的实现: 如果JVM选择不记录任何这种类型的数据,那么它就无法区分内存里某个位置上的数据到底应该解读为引用类型还是整型还是别的什么。这种条件下,实现出来的GC就会是“保守式GC(conservative GC)”。在进行GC的时候,JVM开始从一些已知位置(例如说JVM栈)开始扫描内存,扫描的时候每看到一个数字就看看它“像不像是一个指向GC堆中的指针”。这里会涉及上下边界检查(GC堆的上下界是已知的)、对齐检查(通常分配空间的时候会有对齐要求,假如说是4字节对齐,那么不能被4整除的数字就肯定不是指针),之类的。然后递归的这么扫描出去。 保守式GC的好处是相对来说实现简单些,而且可以方便的用在对GC没有特别支持的编程语言里提供自动内存管理功能。Boehm-Demers-Weiser GC是保守式GC中的典型代表,可以嵌入到C或C++等语言写的程序中。 小历史故事: 微软的JScript和早期版VBScript也是用保守式GC的;微软的JVM也是。VBScript后来改回用引用计数了。而微软JVM的后代,也就是.NET里的CLR,则改用了完全准确式GC。 为了赶上在一个会议上发布消息