[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2014-07-03 Thread rautamiekka
Ubuntu Server 12.04 LTS x64, fully updated as of 2014-07-03, and still
no support for Oracle Java 8 x64 installed through
https://launchpad.net/~webupd8team/+archive/java. We're talking about a
literal shame here on (j)visualvm's part for not supporting its own
owner.

Wake up, ffs, and quit hardcoding !

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2013-01-28 Thread John
So it's just a missing dependency?

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  visualvm fails to launch because it can't find jdk: Cannot find java.
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2013-01-28 Thread John
Aha, it has path to openjdk hardcoded. And it doesn't support oracle jdk

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-10-30 Thread falko
I solved it using 'sudo apt-get install openjdk-6-jdk' in Ubuntu 12.04.1
LTS

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-07-14 Thread Khaled Blah
I had the same problem in u12.04 and the patch in #16 fixed it for me.
Thanks Dmitriy!

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-25 Thread Dmitriy Balakin
The package in the release of Ubuntu 12.04 LTS still has this bug. Check
out my patch.

** Patch added: Patch to /usr/bin/jvisualvm script
   
https://bugs.launchpad.net/ubuntu/+source/visualvm/+bug/657048/+attachment/3163376/+files/jvisualvm.diff

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  visualvm fails to launch because it can't find jdk: Cannot find java.
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-25 Thread Dmitriy Balakin
** Patch removed: Patch to /usr/bin/jvisualvm script
   
https://bugs.launchpad.net/ubuntu/+source/visualvm/+bug/657048/+attachment/3163376/+files/jvisualvm.diff

** Patch added: Patch to /usr/bin/jvisualvm script
   
https://bugs.launchpad.net/ubuntu/+source/visualvm/+bug/657048/+attachment/3163566/+files/jvisualvm.diff

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  visualvm fails to launch because it can't find jdk: Cannot find java.
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-25 Thread Dmitriy Balakin
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-25 Thread Dmitriy Balakin
** Patch added: Patch to /usr/bin/jvisualvm script
   
https://bugs.launchpad.net/ubuntu/+source/visualvm/+bug/657048/+attachment/3163581/+files/jvisualvm.diff

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  visualvm fails to launch because it can't find jdk: Cannot find java.
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-25 Thread Dmitriy Balakin
** Patch removed: Patch to /usr/bin/jvisualvm script
   
https://bugs.launchpad.net/ubuntu/+source/visualvm/+bug/657048/+attachment/3163566/+files/jvisualvm.diff

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-11 Thread Shannon VanWagner
The /usr/bin/jvisualvm startup script (around line 13) is looking for: 
/usr/lib/jvm/java-6-openjdk :
sv@ubu:~$ grep -n /usr/lib/jvm /usr/bin/jvisualvm 
13:for j in /usr/lib/jvm/java-6-openjdk /usr/lib/jvm/java-6-sun; do

And, assuming the openjdk-6-jdk package is already installed (sudo apt-get 
install openjdk-6-jdk), there is no link in /usr/lib/jvm for 
/usr/lib/jvm/java-6-openjdk:
sv@ubu:~$ ls /usr/lib/jvm
java-1.6.0-openjdk-amd64  java-6-openjdk-amd64  java-6-openjdk-common

#Here's what worked for us:
So, to match things up and make the program work, simply create a symlink:
sv@ubu:~$ sudo ln -s /usr/lib/jvm/java-6-openjdk-amd64 
/usr/lib/jvm/java-6-openjdk

Note: I am using Ubuntu 12.04 64-bit version, so you may have to adjust
your symlink accordingly.

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-11 Thread Evan
I had this problem as well with visualvm version 1.3.2-0ubuntu2. As a
workaround I remove the empty directory /usr/lib/jvm/java-6-openjdk and
created a symlink in it's place that points to /usr/lib/jvm/java-6
-openjdk-amd64. It seems strange that the package openjdk-6-jdk would
install an empty directory, maybe they forgot to make it a symlink?

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  visualvm fails to launch because it can't find jdk: Cannot find java.
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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-05-05 Thread Petr Gladkikh
I have installed openjdk-7 and openjdk-6 on Ubuntu 12.04 LTS

And have same problem. specifying --jdkhome doesl not help (it looks
like this switch is ignored):

$ jvisualvm 
No jdkhome found

$ update-java-alternatives -l
java-1.6.0-openjdk-i386 1061 /usr/lib/jvm/java-1.6.0-openjdk-i386
java-1.7.0-openjdk-i386 1051 /usr/lib/jvm/java-1.7.0-openjdk-i386

$ jvisualvm --jdkhome /usr/lib/jvm/java-1.6.0-openjdk-i386
No jdkhome found

$ jvisualvm --jdkhome /usr/lib/jvm/java-1.7.0-openjdk-i386
No jdkhome found

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2012-02-20 Thread no Name
This bug does not seem to be fixed:

Using Ubuntu 11.10 amd64
Installed packages:
• visualvm 1.3.2-0ubuntu1 from oneiric
• openjdk-7-demo 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-doc 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-jdk 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-jre 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-jre-headless 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-jre-lib 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
• openjdk-7-source 7~b147-2.0-0ubuntu0.11.10.1 from oneiric-updates
no java 6 installed, no sun java installed

when starting jvisualvm from terminal I get this:
––
$ jvisualvm
No jdkhome found
––

the reason is that in /usr/bin/jvisualvm , line 13 the paths for
java-6-openjdk and java-6-sun are hard-coded. Without having any java 6
installed jvisualvm can not start.


How about
a) integrating java-7-openjdk
b) using the path of /etc/alternatives/javac instead/additionally

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2011-09-08 Thread Launchpad Bug Tracker
This bug was fixed in the package visualvm - 1.3.2-0ubuntu1

---
visualvm (1.3.2-0ubuntu1) oneiric; urgency=low

  * New upstream version.
  * Drop build dependency on libnb-apisupport2-java. LP: #832764.
  * Fix jdk detection. LP: #657048.
  * Update package description. LP: #813165.
 -- Matthias Klose d...@ubuntu.com   Thu, 08 Sep 2011 13:38:19 +0200

** Changed in: visualvm (Ubuntu)
   Status: Confirmed = Fix Released

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  visualvm fails to launch because it can't find jdk: Cannot find java.
  Please use the --jdkhome switch

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2011-07-28 Thread Daniel T Chen
** Changed in: visualvm (Ubuntu)
   Status: New = Confirmed

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2011-02-10 Thread Stuart Rossiter
The correct fix depends on a full understanding of how jvisualvm
actually works.

The --jdkhome option appears to control only the JVM that VisualVM runs
in, not the JVM which it monitors for Java instances.  I can run the Sun
VisualVM with the Sun JVM as jdkhome, and still see/monitor Java
programs launched using OpenJDK. Equally, I can run the Sun VisualVM
with the OpenJDK JVM as jdkhome, and monitor Java programs launched
using Sun or OpenJDK JVMs.

Is the fact I can monitor both because:

a) OpenJDK, as a 'fork' of the Sun JDK, retains run-time compatibility
in some way?

b) The VisualVM uses standardised JRE/JDK APIs which all JDKs should
support (so I could also view stuff launched using, say, IBM's JVM)?

I assume (b), which would mean that my suggested fix is 'correct',
because there is no reason to ever want to run one JDK-supplier's
VisualVM using another supplier's JVM.

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2011-02-09 Thread Stuart Rossiter
See my comments (and earlier ones from others) in bug #577958.

I suspect that DBooth did an upgrade to Lucid like me. This would mean
you'd have the Sun JDK and the Lucid version of the visualvm package
which won't detect the Sun JDK properly if the OpenJDK JDK is not
installed (due to the script issues discussed earlier here).

There are actually 3 alternatives:

(i) Switch to the OpenJDK fully. Install the OpenJDK JDK (package
default-jdk, which sorts out update-alternatives for you). Then
jvisualvm will work OK (you'll be running the OpenJDK one), but you get
the Fluid errors like in bug #577958.

(ii) As specified in bug #577958, you can switch to the proper Sun
jvisualvm by running /usr/lib/jvm/java-6-sun/bin/jvisualvm explicitly,
or changing the /usr/bin/jvisualvm symlink to permanently point to this.

(iii) Do what DBooth did, which runs the OpenJDK jvisualvm, but with the
Sun JDK backend. With this, you get the *same* Fluid error as #577958
(but, as with my comments there, this doesn't seem to affect the ability
to link to running/launched Java apps.).

One possible fix for *this* bug is therefore to ensure that a Sun JDK
package ensures that an update-alternatives entry for jvisualvm exists
to automatically do (ii) above, so that you're either running the full
Sun suite or the full OpenJDK suite (and built into update-java-
alternatives as well). And then you wouldn't have to worry about all the
checking in the OpenJDK jvisualvm script. Of course, this might not be
considered valid if the devs want to allow the case of running the
OpenJDK jvisualvm frontend with a Sun JDK backend.

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[Bug 657048] Re: visualvm fails to launch because it can't find jdk: Cannot find java. Please use the --jdkhome switch

2010-11-27 Thread DBooth
P.S. I also added the actual error message Cannot find java. Please use
the --jdkhome switch  to the bug title, so that people can find it more
easily when searching.

** Summary changed:

- visualvm fails to launch because it can't find jdk
+ visualvm fails to launch because it can't find jdk: Cannot find java. Please 
use the --jdkhome switch

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