4:01 a.m.
I have the same problem. It seems like the drool eclipse plugin can't
recognize third party classes (any jar files besides those within JRE
runtime and Drools runtime). Despite of the error messages, you can execute
the java application correctly.
However, I have asked around in this forum, in jira, and writing personal
email to Kris Verlaenen and Mario Fusco, but no response at all!!
Below are my posts regarding this problem:
http://drools.46999.n3.nabble.com/rules-users-Drools-eclipse-plugin-probl...
https://issues.jboss.org/browse/DROOLS-472
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5:53 a.m.
New subject: Compilation errors in Drools examples
Hi,
I didn't receive any personal email on this issue or at least I cannot find
it at the moment. Anyway sending personal emails complaining for a certain
defect or missing feature isn't of course a good idea.
I'll try to fix this issue asap.
Thanks for having reported it,
Mario
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6:53 a.m.
New subject: Compilation errors in Drools examples
Hi Mario,
Thank you so much for taking care of this problem. I was pretty frustrated
by this problem and I got no answer after asking around. I thought it could
relate to another problem you solved earlier
(http://drools.46999.n3.nabble.com/rules-users-Drool-6-0-0-Final-2-questio...).
So I sent an email to the email address you are using for this mailing list.
I am sorry to bother you with this.
Thanks.
Jinghai
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6:22 p.m.
New subject: Compilation errors in Drools examples
Hi,
I fixed this issue on master with this commit:
https://github.com/droolsjbpm/droolsjbpm-tools/commit/6bc54748e
This fix will be also backported to 6.0.x branch asap.
Mario
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9:27 p.m.
New subject: Compilation errors in Drools examples
Thanks so much for responding!
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6:25 a.m.
New subject: Compilation errors in Drools examples
Hi Mario,
Thanks for fixing the problem. I just installed the plugin, but this time,
it stops doing validation. It doesn't report any error in the .drl file,
even for obvious syntax errors.
Below is the steps I did:
1. git clone https://github.com/droolsjbpm/droolsjbpm-tools.git
2. cd droolsjbpm-tools/
3. mvn clean install -DskipTests (the build is successfully)
4. Add a local update site to eclipse. The path is
droolsjbpm-tools/drools-eclipse/org.drools.updatesite/target/repository/
5. Install the plugins. The version number seen after installation is:
6.1.0.201406031754
6. Create a new example Drools project. I intentionally made some mistakes,
but there is no error message in eclipse editor. However, if I switch to
Rete Tree tab, I get the following message:
"Rete Tree Build Error!
Reason:
java.lang.Exception: Unable to parse rules to show RETE view! 2 build
errors. "
My environment is same as reported in jira.
If you need further information, please let me know.
Thanks.
Jinghai
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2:26 a.m.
New subject: Compilation errors in Drools examples
Hi Jinghai,
I cannot reproduce the last issue you're reporting. Every time I introduce
an error both in the java and in the drl code it is reported correctly.
Can you be a bit more explicit about this or even better attaching to the
jira ticket a simple project reproducing this issue?
Thanks,
Mario
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11:20 a.m.
New subject: Compilation errors in Drools examples
Hi Mario,
I am not familiar with Eclipse plugin development so I don't know how I can
make it easier to reproduce on your side. I just tested with the default
drools sample project and change a "when" to "when1" in Sample.drl.
However, I am almost sure this is caused by the latest commit. I did a git
revert to the previous commit (5b7101f13cf6eb6bb3cea37638b0d9d982a6b10b
"disabled enforce-plugin-version rule"), and this error can be detected
(see attached ScreenShot1.png). However, the plugin built with the latest
commit can't detect it (ScreenShot2.png). I tried to clean/rebuild the
project and re-import, but the result is all the same.
Please let me know if I can provide more information by any means.
Thank you very much.
Jinghai
On Wed, Jun 4, 2014 at 10:26 AM, Mario Fusco <mario.fusco(a)gmail.com> wrote:
Hi Jinghai,
I cannot reproduce the last issue you're reporting. Every time I introduce
an error both in the java and in the drl code it is reported correctly.
Can you be a bit more explicit about this or even better attaching to the
jira ticket a simple project reproducing this issue?
Thanks,
Mario
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11:38 a.m.
New subject: Compilation errors in Drools examples
Hi Mario,
I am not familiar with Eclipse plugin development so I don't know how I can
make it easier to reproduce on your side. I just tested with the default
drools sample project and change a "when" to "when1" in Sample.drl.
However, I am almost sure this is caused by the latest commit. I did a git
revert to the previous commit (5b7101f13cf6eb6bb3cea37638b0d9d982a6b10b
"disabled enforce-plugin-version rule"), and this error can be detected
(see attached ScreenShot1.jpg). However, the plugin built with the latest
commit can't detect it (ScreenShot2.jpg). I tried to clean/rebuild the
project and re-import, but the result is all the same.
Please let me know if I can provide more information by any means.
Thank you very much.
Jinghai
On Wed, Jun 4, 2014 at 10:26 AM, Mario Fusco <mario.fusco(a)gmail.com> wrote:
Hi Jinghai,
I cannot reproduce the last issue you're reporting. Every time I introduce
an error both in the java and in the drl code it is reported correctly.
Can you be a bit more explicit about this or even better attaching to the
jira ticket a simple project reproducing this issue?
Thanks,
Mario
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1:25 p.m.
New subject: Compilation errors in Drools examples
Hi Mario,
I am not familiar with Eclipse plugin development so I don't know how I can
make it easier for you to reproduce on your side. My project is the
simplest drools sample project and I just changed "when" to "when1"
in
Sample.drl.
However, I am almost sure this is caused by the latest commit. I did a git
revert to the previous commit (5b7101f13cf6eb6bb3cea37638b0d9d982a6b10b
"disabled enforce-plugin-version rule"), and this error can be detected
(see attached ScreenShot1.jpg). However, the plugin built with the latest
commit can't detect it (ScreenShot2.jpg). I tried to clean/rebuild the
project and re-import, but the results are all the same.
Please let me know if I can provide more information by any means.
Thank you very much.
Jinghai
On Wed, Jun 4, 2014 at 10:26 AM, Mario Fusco <mario.fusco(a)gmail.com> wrote:
Hi Jinghai,
I cannot reproduce the last issue you're reporting. Every time I introduce
an error both in the java and in the drl code it is reported correctly.
Can you be a bit more explicit about this or even better attaching to the
jira ticket a simple project reproducing this issue?
Thanks,
Mario
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1:58 p.m.
New subject: Compilation errors in Drools examples
Hi Mario,
I found my issue can be solved by deleting the drools runtime from eclipse
and re-add it. Now everything is good.
Thank you very much.
Jinghai
7:50 a.m.
New subject: Compilation errors in Drools examples
Hi Mario,
Although I fixed the no-validation problem by uninstall/reinstall the drools
runtime as my last message said, it is not a stable solution. Sometimes it
stops to do validation again so I have to repeat the steps.
So I look into the code, and find out "oldLoader" is an instance of
ContextFinder, but "newLoader" is an instance of URLClassLoader, both are
subclass of ClassLoader. So I construct a ContextFinder from newLoader and
use it in setContextClassLoader(). This fixes the problem on my side. Now I
have both validation and recognition of third party classes.
As I said earlier, I know nothing of eclipse plugin development. Please let
me know if it makes sense. But anyway, it works with my environment.
Below please find diff of my updates.
Thank you very much.
Jinghai
---
a/drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/builder/DroolsBuilder.java
+++
b/drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/builder/DroolsBuilder.java
@@ -64,6 +64,7 @@ import
org.eclipse.core.resources.IncrementalProjectBuilder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.core.runtime.internal.adaptor.ContextFinder;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
@@ -124,8 +125,9 @@ public class DroolsBuilder extends
IncrementalProjectBuilder {
ClassLoader oldLoader =
Thread.currentThread().getContextClassLoader();
ClassLoader newLoader = ProjectClassLoader.getProjectClassLoader(
project );
+ ContextFinder newContextFinder = new ContextFinder(newLoader);
try {
- Thread.currentThread().setContextClassLoader( newLoader );
+ Thread.currentThread().setContextClassLoader( newContextFinder
);
IClasspathEntry[] classpathEntries = project.getRawClasspath();
for ( int i = 0; i < classpathEntries.length; i++ ) {
if (
NewDroolsProjectWizard.DROOLS_CLASSPATH_CONTAINER_PATH.equals(
classpathEntries[i].getPath().toString() ) ) {
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