GWT-Ext2.0 problems when compiling / running with Netbeans 6 IDE

[Bill]

Relatively new to GWTapps, have been developing 'pure' GWTapps for 2~3
weeks, using GWT UI Widgets and GWT JSON RPC calls. Works fine, no
problem. Lots of DIY code involved.

Using Netbeans6 IDE with GWT plug-in. Works a dream. J2SE jdk1.5.0_10
because we have some legacy code here.

1] Today, tried to use the new GWT-Ext2, using the samples get some
serious problems
Setup:
Netbeans6 IDE
ext-2.0.2.zip
gwtext-2.0.3.zip
gwtextux.zip

2] as a test, get back to basics, i try the ExtJS applications using
Netbeans6 IDE
ext-2.0.2.zip
gwtext.jar
json-lib-2.2.1-jdk15.jar
which works fine, even the Async JSON calls to some arbitrary JSP
file using json-lib JAR.

- I really want to use the 1] solution because we want to use the
GWTCompiler for Java -> Javascript facility.
I have seen many errors today but one keeps coming back.

As follows :-

Compiling permutations
Analyzing permutation #1
[ERROR] Unexpected internal compiler error
java.lang.OutOfMemoryError: Java heap space
[ERROR] Out of memory; to increase the amount of memory, use
the -Xmx flag at startup (java -Xmx128M ...)
[ERROR] Build failed
C:\\java\\gwt1.5\\gwt-windows-0.0.2030\\Acs3\\testExt\\nbproject\
\build-gwt.xml:13: Java returned: 1

As you can imagine I have spent the whole day trying to set java
heap / memory vmargs for my IDE and the application.

. I have tried the ${NETBEANS HOME}\\etc\\netbeans.conf file,
adding -Xms32m -Xmx512m into that.

. Tried the PROJECT - Properties - Build - Compiling Xmx1024m etc.
( obviously this is an error because javac does not have -Xmx, it
is java command )

. Tried to increase the heap size specifically for Netbeans processes
( ie forking )
by manually changing the PROJECT - nbproject - build.gwt file
line where we run the com.google.gwt.dev.GWTCompiler
to include initialMemorySize="64m" maximumMemorySize="1024m"

eg.

<java classpath="${javac.classpath}:${src.dir}" failonerror="true"
initialMemorySize="64m" maximumMemorySize="1024m"
classname="com.google.gwt.dev.GWTCompiler" fork="true">
<arg value="-out"/>
<arg path="${build.web.dir}/"/>
<arg value="-style"/>
<arg value="${gwt.compiler.output.style}"/>
<arg value="-logLevel"/>
<arg value="${gwt.compiler.logLevel}"/>
<arg value="${gwt.module}"/>
</java>

If anyone has seen this problem before or can offer me a step by step
solution it would be most appreciated,
thanks in advance.

Bill.

[Sanjiv Jivan]

Bill,
Can you post GWT-Ext related questions here : http://www.gwt-ext.com/forum

This might help :
http://www.gwt-ext.com/forum/viewtopic.php?f=5&t=755

Sanjiv

[Scooter]

add maxmemory="256m" to the line that through the exception for heap
space problem.

You can also add -Xmx256m to the other lines in the build script that
have -X options. You will need to do this every time you restart
netbeans. This is a netbeans issue where they don't provide a property
file or parameter setting to increase memory.

The netbeans integration does work very well. I even do incremental
updates of code changes that I am debugging which really helps speed
up development because I don't need to restart or reload debug mode.

Thanks

Scooter Willis

[pohl]

For reference, here is the relevant issue in the GWT4NB bug database:

https://gwt4nb.dev.java.net/issues/show_bug.cgi?id=36

[Wiliam_Walas]

Good morning,

I'v read your post i've the same problem, I didn't find any answer.
I'm using gwtext 2.0.3.

if you know what's the source of this problems answer me please I'll
be thankfull.

Thank you by advance.

Oualaa.