[rules-users] Compilation errors in Drools examples

[rjh]

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() ) ) {



--
View this message in context: http://drools.46999.n3.nabble.com/Compilation-errors-in-Drools-examples-tp4027650p4029892.html
Sent from the Drools: User forum mailing list archive at Nabble.com.