64Bit Java + Minecraft

So i just downloaded Minecrat 1.0.0 and when i was in settings it said it would work better if i had 64bit Java and that currently im running 32bit, i was hoping someone could suggest how i am meant to get 64bit as when i go to the Java site it just suggests that i use to Software Update option under the apple menu but when i do this nothing is showing up.
I know its no nessisery to have 64bit Java but i would have through that with me having a system that can run both 32bit and 64bit i would have had 64bit by default.
Thank you.

Oh my mistake i didn't realize i was posting in10.6.6.....im actually using 10.6.8.
as for the Java Preferences everything is already set that way....in fact i seem to have 2 extra ones as well.

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Java 6 Update 12 64bit Java Webstart documentation

I notice that 64bit 6 Update 12 comes with 64bit version of Java Webstart - I am just wondering whether there are any documentation on how 64bit Java Webstart works? For example:
1) By default it will use the 64bit JRE to launch an application. What if an JNLP embedded some 32bit JNI DLLs that requires the use of 32bit JRE?
2) How can an app specify larger heap if it runs on 64bit host, but less on a 32bit host?
3) Is there any new extensions to JNLP to support 64bit Java?
Thanks.

1.) The initial release of the 64 bit version of javaws will work only with 64 bit JRe's. There is no support yet for mixing.
2.) You can specify different dlls for use with 64 bit and 32 architectures just as you can with operating systems as follows:
<resources>
<java version="1.6+"/>
<jar href="myapp.jar" main="true"/>
<resources os="Windows" arch="i586">
<nativelib href="mydll32.jar"/>
</resources>
<resources os="Windows" arch="amd64">
<nativelib href="mydll64.jar"/>
</resources>
</resources>
3.) There are no new JNLP extensions.
/Andy

How to install 64bit java version

Dear All,
I need config jvm memory greater than 2G because "Account Analyst Report" issue.
If I must need to install JAVA version 64bit, how can I do it?
Platform is: Oracle Solaris on SPARC (64-bit)
Current Java version is:
java -version
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Server VM (build 17.0-b16, mixed mode)
Please Help!!
Thanks,
Jackie

Hey, Guys,
Thanks for your information.
Customer's information:
EBS version: 12.1.3
Platform: Oracle Solaris on SPARC (64-bit)
The instance was fine, after run pre-clone scripts, then OPP service can not start up.
I tried these notes and doesn't work.
At first, customer's error message is:
"Invalid maximum heap size: -Xmx5120m
The specified size exceeds the maximum representable size.
Could not create the Java virtual machine."
Then, I let customer set to 2G, 3G and 4G. Also doesn't help.
I checked customer's context file:
See following information:
<oafm_jvm_start_options oa_var="s_oafm_jvm_start_options">-server -verbose:gc -Xmx256M -Xms64M -XX:MaxPermSize=128M -XX:NewRatio=2 -XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 -Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false -Doracle.security.jazn.config=/AP/crp2/inst/apps/CRP2_m4000/ora/10.1.3/j2ee/oafm/config/jazn.xml</oafm_jvm_start_options>
<oafm_jvm_stop_options oa_var="s_oafm_jvm_stop_options">-server -verbose:gc -Xmx256M -Xms64M -XX:MaxPermSize=128M -XX:NewRatio=2 -XX:+PrintGCTimeStamps -XX:+UseTLAB -XX:+UseParallelGC -XX:ParallelGCThreads=2 -Djava.security.policy=$ORACLE_HOME/j2ee/oacore/config/java2.policy -Djava.awt.headless=true -Dhttp.webdir.enable=false</oafm_jvm_stop_options>
The max is 256M, min is 64M, then I let customer to increase the value, run autoconfig, but also doesn't help.
Another engineer said customer should install 64bit java version on 64bit platform. His comments is:
Please check the java version.
The 32bit Java version can only address 2GB memory which in reality is 1500M for VM Heap Space.
If customer needs more than 1500M VM Heap space, then they need to install the 64bit Java version.
And customer run command:
java -versionoutput is:
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Server VM (build 17.0-b16, mixed mode)
Then engineer provide solution:
update FND_CP_SERVICES
set DEVELOPER_PARAMETERS = 'J:oracle.apps.fnd.cp.gsf.GSMServiceController:-mx1024m'
where SERVICE_ID = (select MANAGER_TYPE from FND_CONCURRENT_QUEUES
where CONCURRENT_QUEUE_NAME = 'FNDCPOPP');
and commit.
But customer need config jvm memory greater than 2G because "Account Analyst Report" issue.
If I must need to install JVM 64bit, how can I do it?
Our EBS version is 12.1.3
That's the whole process.
Please HELP!!!
Thanks,
Jackie

Moving to 64bit Java

Hi,
We are interested in moving to 64 bit java due to memory issues (HUGE data models)
We are in the process of investigating possible OS and hardware platforms.
Our preference is for 64bit Windows Vista and Intel Xeon based workstations from DELL.
Does anyone know if this is a problem with this OS and CPU combination ?
The 64 bit jdk download is specifically named ***amd64****
jdk-6u10-rc-bin-b28-windows-amd64-21_jul_2008.exe
Does this indicate that only the AMD family of 64 bit CPUs is supported and not the Intel Xeon ?
/Geir

It is called AMD64, because AMD was the first to implement a 64bit variant of the x86 platform, and therefor defined the 64 bit instruction set. Since then Intel has 'copied' (under agreement with AMD) this instruction set, and most Intel 64 bit processors use the same instruction set. It is still refered to as AMD64, while it x86-64 would be more correct nowadays. See also [http://en.wikipedia.org/wiki/AMD64]
So with an Intel Xeon you should have no problem running Java-AMD64
Edited by: TheAvalanche on 23-aug-2008 19:11

JDeveloper 11g and 64bit Java

Hi everyone.
I have just installed JDeveloper 11g on my 64bit CentOS machine and everything worked as expected.
Then I tried to use my 64bit JDK version 1.6.0.10 and after a little bit of tampering with the installation directories I was able to do that too.
All it took was to link the $JDEV_HOME/jdk160_05 directory to the location of the actual JDK installation.
To be honest I did not notice any changes in terms of speed.
So my question is whether a 64 bit JDK is officially supported and if the whole 64 bit issue is worth it at all.
Thanassis

Hi,
JDeveloper is on JDK 1.5, How can I configure it to be 1.4??
I had the JDeveloper 10.1.3 also and it went ahead with some updates and now even that shows me that it's version is JDK 1.5
The latest error I get from JDeveloper(From both 11g and 10.1.3) is here,
Invoking loadjava on connection 'HR_CapRock_DEV' with arguments:
-order -resolve -thin
errors : class package1/mypackage/JavaStoredProc
ORA-29521: referenced name java/lang/StringBuilder could not be found
The following operations failed
class package1/mypackage/JavaStoredProc: resolution
oracle.aurora.server.tools.loadjava.ToolsException: Failures occurred during processing
     at oracle.aurora.server.tools.loadjava.LoadJava.process(LoadJava.java:863)
     at oracle.jdeveloper.deploy.tools.OracleLoadjava.deploy(OracleLoadjava.java:116)
     at oracle.jdeveloper.deploy.tools.OracleLoadjava.deploy(OracleLoadjava.java:46)
     at oracle.jdevimpl.deploy.OracleDeployer.deploy(OracleDeployer.java:97)
     at oracle.jdevimpl.deploy.StoredProcHandler.doDeploy(StoredProcHandler.java:473)
     at oracle.jdevimpl.deploy.StoredProcHandler.doDeploy(StoredProcHandler.java:360)
     at oracle.jdevimpl.deploy.StoredProcHandler.doDeploy(StoredProcHandler.java:284)
     at oracle.jdevimpl.deploy.StoredProcProfileDt$Action$1.run(StoredProcProfileDt.java:383)
#### Deployment incomplete. #### Jun 18, 2007 10:17:31 AM
*** Note ***
One possibility for the deployment failure is that the target Database may not support JDK version 1.5. Updating your Project Properties compiler Source & Target to an earlier release could fix this problem.
How can I either downgrade JDK on the compiler(JDeveloper) to be 1.4 or, How can I resolve the error,
ORA-29521: referenced name java/lang/StringBuilder could not be found
Thanks,
Sujith

64bit, java web start, media framework, applets avi mov e.s.o.

Using 64bit, (SuseLinux), nothing works i.e. webbrowsers (firefox),
java web start, media framework, applets, avi, mov, e.s.o.
-How to do to work around this? (I have latest jre+sdk 6)
(note: firefox doing stupid thing when try to download plugin)
Is it possible to write some kind of HTML-code to download an
JAR-file from my (domain) webserver? And then: How to start it? (subject above)

Works just fine for me, too even though the "instructions" do not mention any Mac OS or browser.
Are you really at 10.4.8? Use Software Update to move up to 10.4.11.

Issues with processing on 64bit (java)

Anyone running processing (http://processing.org) on a 64bit machine?
I'm having some issues getting it running, works fine on my 32bit system though.
My error is:
./processing: line 100: /home/action-owl/dev/processing/processing-1.0.9/java/bin/java: No such file or directory
The file does exist, and it's executable, the processing forums have been a bit quiet lately.
Thanks

carlosgottberg wrote:Looking at /usr/bin/processing found out that you have to symlink /usr/bin/java to /usr/share/processing/java/bin/java .
This doesn't seem to work for me, but maybe I'm doing it wrongly... Is this close to what you meant?:
sudo ln -s /usr/bin/java /usr/share/processing/java/bin/java

Problem with installing both 32 and 64bit Java7u45

Hi all.
For some reson we need to install Java7u45 because of an inhouse made application only runs on java7u45 32bit,
Now to my issue, we hava about 200 windows7 x64 machines who need both 32 and 64 bit java7u45.
If i install the 32bit the inhouse appliction works, but then other third party application will not run (SoapUI, Eclipse).
If i install both 64 and 32 bit the inhouse application will not run, i get this error message "NativeSwing[1]: Caused by: java.lang.UnsatisfiedLinkError: Cannot load 32-bit SWT libraries on 64-bit JVM"
In the Java Control Panel only the 64bit java shows up, and if i try to add javaw.exe from C:\program files (x86)\java\bin it will add the correct line, and i looks ok until i close the java control panel and open it, it will still only show the 64bit java.
So is there anyway to change the default 64bit java to 32bit and make it stick?
Thank you.

panosk wrote:
uwinkelvos wrote:This isn't GWT, is it?
Hi, is there anybody using Eclipse and GWT in arch 64?
I use Eclipse Galileo 64 bit and trying to use GWT I get the error "...wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)..."
Should I nstall bin32-jre from AUR and use it to start a 32 bit version of Eclipse? Is there another way using the 64 bit version of eclipse?

Can you tell me if I have a 64 bit operating system which Java update do I download

Please can anyone advise me on what Java update I download for a Windows 7 64 bit operating system. My Firefox is telling me I need to urgently update my Java but when I click through to update all that is there is a page of confusing information about 32 bit and 64 bit systems. It asks which version am I using 64 bit version of Firefox or 32 bit. I didn't know there were two, I thought when referring to 64 bit and 32 bit it meant the operating system of my computer. Can anyone clear this up for me. Thank you.

Of course, if you have a x64 bit system, its better to download a x64 bit Java version. However, i think Firefox won't be able to use it since Firefox isn't x64 bit (yet). So if you need Java in your browser, you'll need Java's 32bit version.
Keep in mind i could be wrong. It's just my guessing because i tried it out some months ago. I installed 64bit Java but Firefox couldn't handle it.
However in my opinion you won't recognize a difference between 32 and 64 bit, unless you play games in Java or do other resource intensive work. 32bit will always work on a 64bit PC, but not the other way around.

64bit weblogic server installation on windows

Hi,
We are trying to install 64bit Oracle weblogic Server 10.3.2 on windows 2007 Server. As per the documentation, The installation requires 64bit java installation and then execute the wl_1032_server.jar file.
We installed weblogic Server successfully and did not find any errors while installing the weblogic server. We created one Managed Server with the default options. We are able to start the Admin Server with out any problems.
But we are unable to start the managed weblogic server and we are getting the following error message while starting the managed webserver.
I have also tried with setting the following memory args also. But I am getting the same error in the managedserver log files.
set MEM_ARGS=-Xms512m -Mmx1024m -MaxPermSize=512m
<Feb 19, 2010 11:57:01 PM EST> <Notice> <WebLogicServer> <BEA-000330> <Started WebLogic Managed Server "new_ManagedServer_1" for domain "base_domain" running in Production Mode>
Exception in thread "[STANDBY] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'" java.lang.OutOfMemoryError: PermGen space
The WebLogic Server encountered a critical failure
Reason: PermGen space
Exception in thread "main" java.lang.OutOfMemoryError: PermGen space
<Feb 19, 2010 11:57:10 PM> <FINEST> <NodeManager> <Waiting for the process to die: 1848>
Can you please help us in configuring the 64bit weblogic server. Do we need to make any special configurations.
Thanks and Regards,
S R Prasad

Thanks,
You are right and I've found a documentation below. Did you checked your Environment Variables or try to use full path of 64 bit Java installation?
How do I select between 32 and 64-bit operation? What's the default? The options -d32 and -d64 have been added to the Java launcher to specify whether the program is to be run in a 32 or 64-bit environment. On Solaris these correspond to the ILP32 and LP64 data models, respectively. Since Solaris has both a 32 and 64-bit J2SE implementation contained within the same installation of Java, you can specify either version. If neither -d32 nor -d64 is specified, the default is to run in a 32-bit environment.
Other Java commands (javac, javadoc, etc.) will rarely need to be executed in a 64-bit environment. However, the -d32/-d64 options may be passed to these commands and then on to the Java launcher using the established -J prefix option (eg: -J-d64).
All other platforms (Windows and Linux) contain separate 32 and 64-bit installation packages. If both packages are installed on a system, you select one or the other by adding the appropriate "bin" directory to your path. For consistency, the Java implementations on Linux accept the -d64 option.
Regards,
Kadir

Java Aplication Maximum Memory size

Hi all,
im developing a fingerprint matching server that would load 10'000 fingerprints each fingerprint has 10KB, but the java application could only load 6500 fingerprints, it means, 64 MB of fingerprints then a java.lang.OutOfMemoryError appears, the machine has 512DDR on windows xp.
My question is,
Has Java any application memory limit?
If is that the case, what should i do?
Thanks for your attention

pass -Xmx256m as an argument to java will allow java to use up to 256 megabytes. You can specify up to around 1600m on Windows 32bit XP. In 64bit OS and 64bit java vm it is much, much higher.
type the following on the command line to see other options
java -X
and/or
java

How to identify the installed Weblogic Server and JDK are 32bit or 64bit?

Hi everyone,
I have a question ~
Both Weblogic Server and JAVA JDK are installed on the server already, but I only know the Weblogic Server is 10.3.4.0 and JAVA JDK version is 1.6.0_25.
I know the 64bit Weblogic Server installation file is a wlsXXXX_generic.jar package and 64bit JAVA JDK needed also.
But, since the Weblogic installed already, there are no such installation files on the Linux Server now.
I have tried the "java -version" for java version and check the Weblogic version from Weblogic console.
How to identify the installed Weblogic Server and JDK are 32bit or 64bit with Linux command? Or is there any way to check it?

What you can try to do is use WLST (or an MBean browser, such as JConsole or JRockit Mission Control) and connect to the adminserver.
For example when using WLST:
# set the environment by using setWLSEnv.sh (located in the ${WL_HOME}/server/bin directory).
# start WLST by using: java weblogic.WLST
# connect to the adminserver
connect('adminusername','adminpassword');
# change to the serverruntime environment
serverRuntime();
# show the attributes
ls();
# Here an attribute is shown called WebLogicVersion that shows the version of WebLogic
-r-- WeblogicVersion WebLogic Server 10.3.5.0 Fri Apr 1 20:20:06 PDT 2011 1398638
# Note that this does not show if is 32 bits or 64 bits to retrieve this information you have obtain the JVM version
# change the directory
cd('JVMRuntime/AdminServer');
# show the attributes
ls();
-r-- Version R28.0.1-21-133393-1.6.0_20-20100512-2126-linux-x86_64
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Force 32 Bit Java

My bank has an application that will allow me to do deposits online by scanning the checks. When I try to use it, it says I have 64 bit Java and they are a 32 bit Java ap and to select 32 bit Java.
So I went to the Java control panel and changed the order to check for 32 bit first then 64 bit.
Both are checked. When I try to de-select the 64 bit Java the 32 bit also de-selects.
How do I specify that I want only 32 bit Java?

Try This, I think it might fix your problem:
Go - > Utilities -> java preferences
Click and Drag the
32bit Java
and Bring it over the 64 Bit Java
That should make it look like:
32bit Java
64bit Java
which should launch 32bit Java first.. then 64bit.
You can also choose to disable 64bit altogether though I find it better to just disable it.
You may have to restart your computer.
Let me know if this helps!

Standby.wrf error Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\STAF\bin\JSTAF.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform

Hi,
I have created a single tile and getting below error in standby0.wrf file.
As mentioned in doc, I made a windows 32 bit for standby VM and installed 32 bit staf followed by staf configurations.I installed all the critical updates for windows.
Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\STAF\bin\JSTAF.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.ibm.staf.STAFHandle.<clinit>(STAFHandle.java:306)
at IdleVMTest.main(IdleVMTest.java:30)
I am attaching my test log.
please let me know how to fix it.
Thanks,
Suresh

Rebecca,
I appreciate your quick response.
I am running the test from Primeclient. I am planning to add more tiles once tile0 runs fine. Client0 runs separately.Forgot to mention this in last update.
I assume prime client generates all wrf files. when other VM's .wrf files are generated fine, will it be still primeclient side error??
Primeclient is windows 2008 sp2 64bit. Initially I installed 32 bit java and ended up problem while starting the VMmark2-STAX.bat. When i installed the 64bit java, problem vanished. I assume java version is correct.
Similary initially i installed a cygwin 64 bit but i got error like "Error VMmarkRMQmgr unable to clear queues". So uninstalled it and installed a cygwin 32 bit and the problem vanished.
I am seeing the standby VM is relocated fine during the test. it is just it is not capturing the data in .wrf file. Standby VM configure section does not talk about java installation. is there anything else i am missing it?
I would like to know whether below error talks about standby VM because standby VM is 32 bit other side primeclient is 64 bit. below error says on a IA 32-bit platform.
Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\STAF\bin\JSTAF.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform
Below image u can see java variables are set. Is there anything wrong??
Thanks,
Suresh

Why Java VisualVm Could not show running applications of remote server

Hi,everyone. I run jstatd in the remote server, and run java visualVM in local ,but the applications running in remote server could not display in the visualVM panel.
this is local viaualVm Info:
===============================================
Version:
1.7.0_02 (Build 1320-110325); platform 110131-9c8b3bfb3a1e
System:
Windows 7 (6.1) Service Pack 1, amd64 64bit
Java:
1.7.0_02; Java HotSpot(TM) 64-Bit Server VM (22.0-b10, mixed mode)
Vendor:
Oracle Corporation, http://java.oracle.com/
Environment:
GBK; zh_CN (visualvm)
Userdir:
C:\Users\Johnny\AppData\Roaming\.visualvm\7
Clusters:
C:\Java\jdk1.7.0_02\lib\visualvm\platform
C:\Java\jdk1.7.0_02\lib\visualvm\visualvm
C:\Java\jdk1.7.0_02\lib\visualvm\profiler
有关详细信息，请访问 http://visualvm.java.net。在 NetBeans 平台上构建。
==============================================================
the OS of remote server is CentOS 6. jvm info:
==============================================================
java version "1.7.0_02"
Java(TM) SE Runtime Environment (build 1.7.0_02-b13)
Java HotSpot(TM) 64-Bit Server VM (build 22.0-b10, mixed mode)
==============================================================
start jstatd command is :
====================================
./jstatd -J-Djava.security.policy=jstatd.all.policy -p 2020
====================================
the content if jstatd.all.policy which in the $JAVA_HOME\bin
=====================================
grant codebase "file:${java.home}/../lib/tools.jar" {
permission java.security.AllPermission;
=====================================
whats wrong happened ?
帖子经 user5950241编辑过

are you running jstatd on the remote server as a user with permission to see the jvm processes you care about?

64Bit Java + Minecraft

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