StackTrace

Re: Error on OS X

Author: support
Forum: General Discussion
Date: 2008-11-07

Thank you for reporting this problem.
The web start version has been updated. Please try again.
In case you encounter the issue again please report your system's architecture (ppc,ppc64,x86_64,etc.)

Error on OS X

Author: kazoobrewer
Forum: General Discussion
Date: 2008-11-06

Running my application on OS X (through Eclipse), I received the following error on taking a thread dump:

dyld: lazy symbol binding failed: Symbol not found: _close$UNIX2003
Referenced from: /Users/michael/Library/Caches/Java/cache/javaws/http/Dwww.adaptj.com/P80/DMwebstart/DMstacktrace/DMapp/RNmacproc.jar/libdump.jnilib
Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _close$UNIX2003
Referenced from: /Users/michael/Library/Caches/Java/cache/javaws/http/Dwww.adaptj.com/P80/DMwebstart/DMstacktrace/DMapp/RNmacproc.jar/libdump.jnilib
Expected in: /usr/lib/libSystem.B.dylib

That application crashes with the above printed to stderr. StackTrace does show a thread dump in its console.

OS X 10.4.11
Java 1.5.0_16
StackTrace 2.5.10.0

Re: no valid license when running via java web start

Author: fphan
Forum: General Discussion
Date: 2008-11-03

I performed all the suggestions above (clearing cache, deleting application via javaws -viewer, etc.) and am still getting the "no valid license" message.
com.adaptj.expdate says "2008/11/01"

Please help.

Bytecode debugging

Author: admin
Forum: General Discussion
Date: 2008-10-23

The latest version of StackTrace (2.5.10 still in beta) introduces a new command for interpreting method bytecode.
Here is an example:

Code: Select all: bsh % methods(String.class); ... 93: toUpperCase() -> java.lang.String # public 94: trim() -> java.lang.String # public 95: valueOf(boolean) -> java.lang.String # public static ... bsh % m = methods(String.class)[94]; ... bsh % i = interpret(m, " Hello world! "); <com.adaptj.shell.bytecode.MethodScript@8ee016> bsh % i.step();i.status(); <true> bsh % Locals: 0: " Hello world! " Stack: " Hello world! " 0: aload(0) > 1: get_field("java.lang.String", "count", "I") 2: istore(1) 3: iconst_0() ... bsh % i.go(); <Hello world!> bsh %

It allows full access to the stack, the local variables, and the execution flow.
When combined with the existing breakpoint command (not fully integrated yet), it makes it possible to interpret the method in the same context (thread, class loader, etc.) where the actual bytecode is executed.
In summary, for Java 6 one can attach to a running application without any preparation, set a breakpoint, step through the code, modify the stack, the locals, or the flow, and then detach in most cases with no side effects.
Please share any suggestions for improving this functionality.

Here are some useful commands to get you started with using the StackTrace console.
methods(String.class) or methods("string object") - returns an array of all methods for a class or an object.
fields(String.class) or fields("string object") - returns an array of read/write field accessors.
The following code will print 0: { s = "test"; fields(s).count = 0; print(s.length()); }
bytecode(m) - prints the method bytecode where m is a java.lang.reflect.Method instance
help() and list() to explore more commands.

Missing posts

Author: support
Forum: General Discussion
Date: 2008-09-24

There was a problem with the server hosting this site. The file system was corrupted and we had to restore the data from backup. As a result of that we lost the most recent posts in this forum. We apologize for the inconvenience. If you did not get your questions answered please post them again.

Re: no valid license when running via java web start

Author: demcgreg
Forum: General Discussion
Date: 2008-08-06

That's done the trick - I cleared my browser cache as well and that downloaded the correct file.

Thanks!

Re: no valid license when running via java web start

Author: support
Forum: General Discussion
Date: 2008-08-06

Open Tools->Local Console and copy/paste the following command:
location(org.adaptj.shell.Main.class);
Press <Enter>
You will see where is your java web start cache.
You can also run the following command and remove the tool if its is there:
javaws -viewer
Try to save the .jnlp file as text and check the same property. You may have something caching the old version of the file.

Re: no valid license when running via java web start

Author: demcgreg
Forum: General Discussion
Date: 2008-08-06

The com.adaptj.expdate is showing 2008/08/01, so it is not the latest license - How can I get the latest one?

Re: no valid license when running via java web start

Author: support
Forum: General Discussion
Date: 2008-08-06

Open Tools->Java Properties scroll to the top and make sure that you see: com.adaptj.expdate 2008/09/01
Check the system date on your computer too.

Re: no valid license when running via java web start

Author: demcgreg
Forum: General Discussion
Date: 2008-08-06

Thanks for the reply. I cleared the java web start cache and ensured that the application downloads the latest version, however the license error still appears.

Re: no valid license when running via java web start

Author: support
Forum: General Discussion
Date: 2008-08-06

The license expires every month. Sometimes java web start does not detect the changes to the .jnlp file. In this case you should clean your java web start cache and start the tool again.

Re: no valid license when running via java web start

Author: demcgreg
Forum: General Discussion
Date: 2008-08-05

Hi,

There is a "No Valid License" error again.

Thanks,
David

Re: how to analyze the stack Trace

Author: support
Forum: General Discussion
Date: 2008-07-24

Solaris is not a supported platform.
StackTrace's main strength is in acquiring thread dumps and additional information about the state of the VM and the running application.
There are plenty of other tools for browsing and analyzing thread dumps.
https://tda.dev.java.net/
http://sourceforge.net/projects/tdv/
http://www.alphaworks.ibm.com/tech/jca

how to analyze the stack Trace

Author: akshay_sst
Forum: General Discussion
Date: 2008-07-23

Hi,
How to analyze the stack trace created on Solaris machine using this tool with the help of kill -3 <pid> command?

Re: Run StackTrace.exe as a Batch File

Author: support
Forum: General Discussion
Date: 2008-06-30

"Dump All" is the same as "jstack all". This will dump the threads from all the running (compatible) JVMs.

Re: Run StackTrace.exe as a Batch File

Author: compdigt44
Forum: General Discussion
Date: 2008-06-29

Thanks for the reply. There is some more information on what I need to do:
- I need run "Dump All" java process to a text file via the command-line. The problem is when you try to run jstack you need to specify a PID is there someway to have jstacks.exe run from the command and have it dump "ALL" threads".

Please note I'm new to this applicatoin and java so please bare with me.

Re: Run StackTrace.exe as a Batch File

Author: support
Forum: General Discussion
Date: 2008-06-29

If you want to get a thread dump from the command line you have to use jstack.exe or jstack.bat. They are located in the same directory with stacktrace.exe.
For example the following command will print the thread dump of process with id 7865 to the standard output:
jstack 7865

You can use the Windows scheduler to run the jstack command too. In this case you have to make sure that your application and jstack are in the same session.
The following discussion has an example but with the jinfo command:
viewtopic.php?f=2&t=14

You can also run a BeanShell script. Take a look at the following discussion:
viewtopic.php?f=2&t=58
The jstart command can execute scripts from the command line.

Run StackTrace.exe as a Batch File

Author: compdigt44
Forum: General Discussion
Date: 2008-06-28

I just downloaded and installed this application to help troubleshoot one of our custom applications that was built for my company. The vendor that created this application has request. I need to run tread dumps on my server hosting this application three times a day but each time when stacktrace is run it needs to be run 4 times in a row. So here is my question for everyone, since I'm new to stacktrace and not very good at scripting
1) Can stacktrace.exe be run from the commandline?
2) If so how would I make stacktrace run 4 times in a row? I was thinking about creating a batch file with 4 lines that would launch stack trace..

please advise

Re: 64 bit support

Author: support
Forum: General Discussion
Date: 2008-06-25

The latest version of the product (2.5.7) already has the 64-bit support enabled. Unfortunately Sun does not have Java Web Start for 64-bit VMs so the free version won't work.
If you install the standalone version and point the tool to a 64-bit JDK you will be able to try it.
The .exe launchers now allow you to change the JRE. Before, they were searching only the registry.
The search order is as follows:
1. The corresponding .ini file
2. ADAPTJ_JAVA_HOME environment variable
3. The latest Java from the registry.
4. JAVA_HOME

Re: Scripting an installation (including licence key)

Author: support
Forum: General Discussion
Date: 2008-05-01

The latest version (2.5.6) allows you to specify the JRE for the service.
For example the following command will run the installer with its default settings but without starting the GUI.
StackTraceSetup.exe /VERYSILENT /SUPPRESSMSGBOXES /JAVA=C:/Java/1.6.0_05
It will also install the license if it is in the same directory as the installer and has the default name stackTraceLicense.txt
There is also an option to use a different license file name and location: /LICENSE=C:\Temp\myLicense.txt

The .exe launchers now allow you to change the JRE. Before, they were searching only the registry.
The search order is as follows:
1. The corresponding .ini file
2. ADAPTJ_JAVA_HOME environment variable
3. The latest Java from the registry.
4. JAVA_HOME
If you point to a 64-bit Java the tool will work only for 64-bit applications.