Java and LO 7.0.beta2+ / master

Jean-Baptiste Faure jbfaure at
Fri Jun 19 08:23:47 UTC 2020

Le 19/06/2020 à 08:36, Stephan Bergmann a écrit :
> On 18/06/2020 20:37, Jean-Baptiste Faure wrote:
>> I have a problem with Java in my builds of LO7 and master.
>> My environment: Ubuntu 18.04.4 x86-64 with Gnome.
>> Java : OpenJDK 8 and 11 provided by Ubuntu
>> Default java : java 11
>> I build LO 6.4, 7.0 and master
>> LO 6.4 I is build with option
>> --with-jdk-home=/usr/lib/jvm/java-8-openjdk-amd64/
>> LO7 and master are build with option
>> --with-jdk-home=/usr/lib/jvm/java-11-openjdk-amd64
>> I did tests with form wizard in Base:
>> LO6.4 is able to use both java 8 and java 11.
>> LO7.0 beta2+ and master can find only java 8 and say it is defective.
>> If I try to add java 11 (/usr/lib/jvm/java-11-openjdk-amd64
>> ) it say that there is no Java runtime environment in the folder I 
>> selected.
>> Is there something I missed in the configuration of my builds or is 
>> there a bug ?
> I would start debugging by looking at what JREs are actually listed at 
> "Tools - Options... - LibreOffice - Advanced - Java Options", and 
> running LO with SAL_LOG=+WARN+INFO.jfw to get all the log output from 
> the code responsible for choosing a JRE and starting a JVM (assuming 
> your build is not (implicitly) configured as --disable-sal-log).

Thank you for your help.

OpenJDK 8 is activated in Tools > Options > LibreOffice > Advanced
but LO does not show its location.

I added --enable-sal-log option and rebuilt LO 7.0 beta2+

1/ I unchecked Use Java runtime environment
2/ Closed LO
3/ Started LO and check Use Java runtime environment again and restart LO
4/ Opened a database and launch the wizard to create a form -> I get the 
error box saying that I must restart LO. the JRE is defective.
But, in the terminal I get this error message :
> Error occurred during initialization of VM
> Could not allocate metaspace: 1073741824 bytes
> JavaVM: JNI_CreateJavaVM called os::abort(), caught by abort_handler in javavm.cxx
> [Java framework] sunjavaplugin.soCan not create JavaVirtualMachine, abort handler was called

If I understand correctly this message, JVM launcher want allocate 1 GB. 
It seems a lot, but it should not be a problem, my PC has enough RAM (8 
GB) and I use routinely a Java application with option "-Xmx 1024 MB".

When I try to add the JRE 11, I get only the message box saying that 
there is no JRE in the folder. There is no message in the terminal.

Best regards.

Seuls des formats ouverts peuvent assurer la pérennité de vos documents.

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