Java.dll question

Hello,
I am trying to run a product called PDFLib, and it has java bindings that use a pdflib.dll. I am trying to run one of the examples from the sw and I am getting the following error:
C:\>java hello
Error opening registry key 'Software\JavaSoft\Java Runtime Environment'
Error: could not find java.dll
Error: could not find Java 2 Runtime Environment.
I have never had any classpath issues compiling or running normal java files. I have been doing it for years. But this dll stuff is confusing to me. I looked inside my jdk1.3.1 and found a java.dll inside a /jre/bin folder.
What is the purpose of this java.dll and on NT, how do I make it available to the java runtime environment?
Thanks,

1. jvm.dll is the java virtual machine - at least for sun jre. Calling java starts an executable that loads jvmdll into its process space, then uses it to load and execute your program.
2. You MAY be having a problem with more than one java.exe on your computer. The one you want is probably in the jre\bin directory you mentioned.
o Try changing to that directory and running
java hello
o If it works, then change your PATH environment variable so that the jre\]\bin is searched before other directories.

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I've installed Java 2 SDE 1.4.0_01 on Win 98. I'm having no problems compiling and running applets. However when using the Command line Interface (DOS) there is serious problem.
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WLS started as NT service: javai.dll not found

Hi,
I have just installed WLS 5.1 SP8 as NT Service. After trying to start the
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But the WLS seems to work anyway (what I have tested so far).
I do not get this error if I start the WLS from the command line.
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directory and try it again.
"Fleming Frese" <[email protected]> wrote in message
news:3a838fcb$[email protected]..
Michael,
Thanks for this information.
Does this mean, that WLS 5.1 SP9 kann run with JDK1.3, especially as NT
service then?
I interpreted the information in the "WebLogic Platform Support Summary"
website
(http://www.weblogic.com/platforms/index.html#winnt)
as if JDK 1.3 is generally not recommended to use with WLS 5.1.
I just want to sort out if we should wait for SP 9 or if we shut restrict
our development on JDK 1.2.2.
Thanks for any comments and recommendation
Fleming
Michael Girdley <----> wrote in message
news:3a80ff93$[email protected]..
This is a bug to be fixed in SP9.
Bug #: CR031853
Thanks,
Michael
Michael Girdley
BEA Systems
Learning WebLogic? http://learnweblogic.com
"Fleming Frese" <[email protected]> wrote in message
news:3a7ff4f3$[email protected]..
Hi,
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the
service from the console I get the message "The dynamic link library
javai.dll could not be found in the specified path ...".
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I do not get this error if I start the WLS from the command line.
I checked on another machine and found the javai.dll in the jdk 1.1.8bin
directory but I installed the JDK 1.3.0 on the new machine.
Does anybody else experienced this before?
Do I need to install the JDK 1.1.8?
Any feedback is very appreciated.
Thanks in advance,
Fleming Frese

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startup process:
java.exe - Unable To Locate DLL
The dynamic link library javai.dll could not be found int the specified
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Actually it's not OK, but since I had no choice I pressed it. Then I get
the following error with stack trace:
Mon Dec 04 18:59:43 PST 2000:<E> <SocketMuxer> Unable to load native
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Mon Dec 04 18:59:43 PST 2000:<E> <SocketMuxer>
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:\weblogic_romeo\bin\wlntio.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1382)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1306)
at java.lang.Runtime.loadLibrary0(Runtime.java:749)
at java.lang.System.loadLibrary(System.java:820)
at weblogic.socket.NTSocketMuxer.<init>(NTSocketMuxer.java:149)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at
weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:176)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:140)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:257)
I suspect the problem may be that the system checks to see if it is
running jdk1.2, if it is it, trys to load wlntio_jdk12.dll. If it is not
running jdk1.2 (like in my case where it is running jdk1.3), it assumes
that it is running jdk1.1 and loads wlntio.dll which looks for
javai.dll.
Has anyone else had this problem, or has anyone sucessfully used jdk1.3
with 4.5.1?
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Carles

We were given a patch (CR038329) a week ago and it appears to resolve this
for 4.5.1 sp13. They should be noting the need for this patch on the
platform page. Anyone know if there's an equivalent patch for 4.5.2? (and
will the fix be included in sp2?)
"Joe Herbers" <[email protected]> wrote in message
news:[email protected]...
Yes, I've seen exactly this for months. We started trying 1.3 with 4.5
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time, keep in mind that the issue has been marked with the highest priority
possible and we will work hard to get this resolved. I'll keep you updated."
"Carles Pi-Sunyer" <[email protected]> wrote in message
news:[email protected]...
Now that Java 2 JDK1.3.0 with hotspot is supported for 4.5.1
(http://www.weblogic.com/platforms/index.html#winnt), I thought I would
give it a try. I am using Weblogic 4.5.1 with SP13, and NT 4.0.
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startup process:
java.exe - Unable To Locate DLL
The dynamic link library javai.dll could not be found int the specified
path
c:\jdk1.3\bin;.;C:\WINNT\System32;C\WINNT\system
OK
Actually it's not OK, but since I had no choice I pressed it. Then I get
the following error with stack trace:
Mon Dec 04 18:59:43 PST 2000:<E> <SocketMuxer> Unable to load native
socket muxe
r, using Java muxer
Mon Dec 04 18:59:43 PST 2000:<E> <SocketMuxer>
java.lang.UnsatisfiedLinkError: C
:\weblogic_romeo\bin\wlntio.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1382)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1306)
at java.lang.Runtime.loadLibrary0(Runtime.java:749)
at java.lang.System.loadLibrary(System.java:820)
at weblogic.socket.NTSocketMuxer.<init>(NTSocketMuxer.java:149)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at
weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:176)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:140)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:257)
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running jdk1.2, if it is it, trys to load wlntio_jdk12.dll. If it is not
running jdk1.2 (like in my case where it is running jdk1.3), it assumes
that it is running jdk1.1 and loads wlntio.dll which looks for
javai.dll.
Has anyone else had this problem, or has anyone sucessfully used jdk1.3
with 4.5.1?
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Carles

Javai.dll non-fatal error

I installed WebLogic 5.1 (with SP6) on NT 4 and when I try to run it as a
service, I get "javai.dll not found in specified path" error. After I click
OK, it seems to run ok.
I also noticed the message
"Warning: JIT compiler "symcjit" not found. Will use interpreter."
at the top of the scrolling text when I run WebLogic from the menu.
Any ideas?
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Dave Mrozek

Dave
Did anyone ever respond to your inquiry?
During performance/load testing I have been encountering Dr. Watson errors
with WebLogic 5.1 sp6 on Windows NT 4 with JDK 1.2.2. BEA support suggested
that I upgrade to Sunsoft SDK 1.3 to get rid of the Dr. Watson errors that
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server from the DOS command line.
From what I know, javai.dll was included in JDK 1.1.7, but is not packaged
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java.awt.fonts =
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.awt.printerjob = sun.awt.windows.WPrinterJob
java.class.path =
d:\weblogic\lib\weblogic510sp6boot.jar;d:\jdk1.3\jre\lib\rt.jar;d:\jdk1.3\jr
e\lib\i18n.jar;d:\weblogic\classes\boot;d:\weblogic\eval\cloudscape\lib\clou
dscape.jar
java.class.version = 47.0
java.compiler = symcjit
java.ext.dirs = d:\jdk1.3\jre\lib\ext
java.home = d:\jdk1.3\jre
java.io.tmpdir = C:\TEMP\
java.library.path =
java.protocol.handler.pkgs = weblogic.utils|weblogic.utils
java.runtime.name = Java(TM) 2 Runtime Environment, Standard Edition
java.runtime.version = 1.3.0-C
java.security.manager =
java.security.policy = =d:\weblogic\weblogic.policy
java.specification.name = Java Platform API Specification
java.specification.vendor = Sun Microsystems Inc.
java.specification.version = 1.3
java.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
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java.vm.name = Classic VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Sun Microsystems Inc.
java.vm.specification.version = 1.0
java.vm.vendor = Sun Microsystems Inc.
java.vm.version = 1.3.0-C
The message about "symcjit" results from the WebLogic property
java.compiler=symcjit in the wlconfig. I think that this needs to be
changed to java.compiler=javac with JDK 1.3, since BEA indicates that JIT
should be turned off for JDK 1.3.
I'd be curious what you did to get around these errors.
John J. Feigal Voice (651)766-8787 (main)
Sr. Technical Consultant (651)766-7249 (direct)
Ensodex, Inc. Fax (651)766-8792
4105 N. Lexington Ave., Suite 150 email [email protected]
Arden Hills, MN 55126 WebSite http://www.ensodex.com
"Dave Mrozek" <[email protected]> wrote in message
news:[email protected]...
I installed WebLogic 5.1 (with SP6) on NT 4 and when I try to run it as a
service, I get "javai.dll not found in specified path" error. After Iclick
OK, it seems to run ok.
I also noticed the message
"Warning: JIT compiler "symcjit" not found. Will use interpreter."
at the top of the scrolling text when I run WebLogic from the menu.
Any ideas?
Thanks,
Dave Mrozek

JAVAI.DLL error

Hi all,
After install Weblogic 5.1 with SP3, the server starts up fine with no
problem. But when i set:
wlconfig -JAVA_HOME D:\JDK
(D:\JDK is Suns JDK 1.3)
Then everytime I start up Weblogic server or console, it gives me an error
saying Weblogic can't locate "JAVAI.DLL" in my system path.
Does anyone know why this happen? And I also notice, when i start the
server, it complains:
Warning: JIT compiler "symcjit" not found. Will use interpreter.
Thanks,
Tin Doan
PS: please include my email when you respond: [email protected]

You probably do not want to use the J. R. E. that was delivered with net
zero.
Could you try using the start Scripts that are included in the Weblogic
directory? By default, these are often placed in c:\Weblogic. Look for a
setenv.cmd script and run it and then run a startWeblogic.cmd script.
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work.
The following documentation should be of help:
http://www.weblogic.com/docs51/install/startserver.html#1029223
Michael Girdley
Product Manager, WebLogic Server & Express
BEA Systems Inc
"TDoan" <[email protected]> wrote in message
news:[email protected]..
Michael,
The only version of JDK I installed is Suns JDK version 1.3. I believe
Weblogic also installed a default
JRE which probalby is not used in my case. I did the "wlconfig -JAVA_HOME
d:\jdk".
JAVAI.DLL is not in my system path. Although I locate that file under my
Netzero installation. I attemp to use Netzero JAVAI.DLL with Weblogic, but
the app server crashes when I load it.
Thanks,
Tin
"Michael Girdley" <[email protected]> wrote in message
news:397b5617$[email protected]..
Do you have other JDKs installed? Also, is JavaI.DLL located somewhere
in
your system path?
Thanks,
Michael
Michael Girdley
Product Manager, WebLogic Server & Express
BEA Systems Inc
"TDoan" <[email protected]> wrote in message
news:[email protected]..
Hi all,
After install Weblogic 5.1 with SP3, the server starts up fine with no
problem. But when i set:
wlconfig -JAVA_HOME D:\JDK
(D:\JDK is Suns JDK 1.3)
Then everytime I start up Weblogic server or console, it gives me an
error
saying Weblogic can't locate "JAVAI.DLL" in my system path.
Does anyone know why this happen? And I also notice, when i start the
server, it complains:
Warning: JIT compiler "symcjit" not found. Will useinterpreter.
>>>
Thanks,
Tin Doan
PS: please include my email when you respond: [email protected]

Cannot find Java.dll / java2 runtime environment?

Dear Friends,
I am using jdk1.3 and j2sdkee.1.2.1.
While I could successfully compile the java program . While running it give me RunTimeError as
Registry Key 'Sofware\Javsoft\JavaRuntimeEnviroment\CurrentVersion' has 1.1 value , but needs 1.3 is required.
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Could not find Java 2 Runtime Environment.
Can any one put some light on these matters
Thanks and Regards
Abhilash
My classpath settings are as follows:
set java_home=C:\jdk13
set TOMCAT_HOME=C:\tomcat~1
set classpath=%classpath%;C:\ORAWIN95\BIN;c:\jdk13\bin;c:\jdk13\lib\jndi.jar;c:\jdk13\lib\tools.jar;c:\jdk13\lib\dt.jar;c:\tomcat321\lib\servlet.jar;c:\tomcat321\lib\ant.jar;c:\tomcat321\lib\jasper.jar;c:\tomcat321\lib\parser.jar;c:\tomcat321\lib\webserver.jar;c:\tomcat321\lib\jaxp.jar;c:\j2sdkee1.2.1\bin;c:\j2sdkee1.2.1\lib\j2ee.jar;c:\j2sdkee1.2.1\lib\jndi.jar;c:\j2sdkee1.2.1\lib\jhall.jar;c:\j2sdkee1.2.1\lib\ejb10deployment.jar;
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Hi,
You'll need the runtime environment for JDK 1.3 installed.
Check wether the folder "C:\Program Files\JavaSoft\JRE\1.3" exists. If it doesn't exist, go to
http://java.sun.com/j2se/1.3/jre/download-windows.html
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Hope this helps,
Kurt.

Registry key CurrentVersion incorrect and cannot find java.dll

I have been reading the posts in this forum related to similar errors but not quite sure that they address this situation. Here is what I am seeing:
I have j2sdk 1.4.2_05 on WindowsXP and the HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\CurrentVersion has the value 1.4.2_05. The j2sdk install copied the java.exe to C:\j2sdk1.4.2_05\bin, C:\j2sdk1.4.2_05\jre\bin and C:\Program Files\Java\j2re1.4.2_05\bin folders. It also copied the same file to the windows\system32 folder. So far so good.
In my windows PATH env. variable, the windows\system32 path comes first . So when on the DOS prompt, I type "java -version" or even "C:\windows\system32\java -version", I get the following error :
Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'
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Error: could not find java.dll
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C:\j2sdk1.4.2_05\jre\bin\java -version OR
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works and I get the version info for 1.4.2 j2sdk.
Now I know that prefixing j2sdk bin path to the PATH variable, so that it comes before windows\system32 will set it right. But I think I should not have to do that , if the j2sdk installation has already copied the latest java.exe to the windows\system32 folder. If it was just an issue of java.exe in windows\system32 being in sync with the JRE current version in registry, I think even just "java -version" should have worked. Since that is not working, maybe there is something beyond that. At this time, I do not know what that could be.
Any suggestions?

The java.exe file in system32 that's being executed isn't version 1.4.2_05. Either you have multiple copies of java installed, or the install got screwed up.
Check version and (maybe) just copy the correct file into system32?

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to invoke Java classes from other languages using the Java Native Interface (JNI), see
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