I am using latest nightly nb 4.2, and register a pure nb 4.1 as a nb platform.
I create a NetBeans module for it, that tries to rely on org.openide module (the
one from 4.1),
and at build time, I get the following error... So I guess 4.1 is not supported
anymore for a RCP target platform?
If yes, it should not be accepted. If no, then this is a bug.

taskdefs:
common-init:
projectized-common.basic-init:
basic-init:
files-init:
nbm-license-init:
build-init:
Scanning for modules in C:\anetbeans-4.1
Found modules: [org.netbeans.modules.suggestions_framework,
org.netbeans.modules.web.core.syntax, org.netbeans.modules.beans,
org.netbeans.modules.masterfs, org.netbeans.modules.navigator,
org.netbeans.core.execution, org.netbeans.modules.web.debug,
org.netbeans.libs.j2eeeditor, org.netbeans.modules.java,
org.netbeans.modules.xsl, org.netbeans.modules.editor.errorstripe,
org.netbeans.modules.usersguide, org.netbeans.modules.html,
org.netbeans.modules.ant.browsetask, org.netbeans.modules.vcs.profiles.vss,
org.netbeans.modules.clazz, org.netbeans.libs.commons_logging,
org.netbeans.modules.j2ee.ddloaders, org.netbeans.modules.diff,
org.openidex.util, org.netbeans.modules.vcs.advanced,
org.netbeans.modules.refactoring, org.netbeans.modules.tomcat5,
org.netbeans.modules.classfile, org.netbeans.modules.extbrowser,
org.netbeans.spi.viewmodel, org.netbeans.modules.ant.debugger,
org.netbeans.modules.project.libraries, org.netbeans.libs.xerces,
org.openide.execution, org.netbeans.modules.apisupport.ant,
org.netbeans.modules.ant.grammar, org.apache.tools.ant.module,
org.netbeans.modules.favorites, org.netbeans.modules.mdr,
org.netbeans.modules.web.monitor, org.netbeans.jmi.javamodel,
org.netbeans.modules.tasklist.errorstripe, org.netbeans.api.web.dd,
org.netbeans.modules.web.core, org.netbeans.modules.debugger.jpda.ant,
org.netbeans.modules.xml.core, org.netbeans.modules.projectapi,
org.netbeans.api.xml, org.netbeans.modules.vcs.profiles.pvcs,
org.netbeans.bootstrap, org.netbeans.modules.editor.plain,
org.netbeans.modules.applemenu, org.netbeans.modules.editor.fold,
org.netbeans.modules.editor.util, javax.jmi.model,
org.netbeans.modules.xml.catalog, org.netbeans.modules.j2ee.debug,
org.netbeans.modules.j2ee.blueprints, org.netbeans.modules.properties,
org.netbeans.modules.j2ee.sun.ide, org.netbeans.modules.image,
org.netbeans.modules.updatecenters, org.netbeans.modules.editor.plain.lib,
org.netbeans.modules.html.editor, org.netbeans.modules.httpserver,
org.netbeans.modules.apisupport.project, org.netbeans.modules.tasklist.docscan,
org.netbeans.modules.j2ee.ejbjarproject, org.netbeans.modules.java.platform,
org.netbeans.modules.j2eeapis, org.netbeans.spi.debugger.ui,
org.netbeans.core.output2, org.netbeans.api.debugger,
org.netbeans.modules.utilities.project, org.netbeans.api.web.webmodule,
org.netbeans.modules.queries, org.netbeans.core.ide, org.netbeans.core.ui,
org.netbeans.modules.websvc.websvcapi, org.netbeans.modules.debugger.jpda,
org.netbeans.modules.project.ant, org.netbeans.modules.java.errorstripe,
org.netbeans.modules.java.editor, org.netbeans.modules.web.project,
org.netbeans.modules.web.jstl11, org.netbeans.modules.j2ee.sun.dd,
org.netbeans.modules.j2ee.genericserver, org.netbeans.swing.plaf,
org.netbeans.modules.projectui, org.netbeans.modules.web.jspparser,
org.netbeans.modules.dbschema, org.netbeans.modules.servletapi23,
org.netbeans.modules.html.editor.lib, org.netbeans.modules.web.freeform,
org.netbeans.modules.ide.branding, org.netbeans.modules.j2ee.api.ejbmodule,
org.netbeans.modules.java.freeform, org.netbeans.modules.ant.freeform,
org.netbeans.modules.java.j2seplatform, org.netbeans.modules.javanavigation,
org.netbeans.modules.editor, org.netbeans.modules.web.examples,
org.netbeans.modules.autoupdate, org.netbeans.api.debugger.jpda,
org.netbeans.modules.xml.tax, org.netbeans.modules.java.editor.lib,
org.netbeans.modules.vcscore, org.netbeans.modules.css,
org.netbeans.modules.vcscore.javacorebridge, org.netbeans.modules.j2ee.dd,
org.netbeans.modules.websvc.core, org.netbeans.modules.welcome,
org.netbeans.modules.i18n, org.netbeans.modules.servletapi24,
org.netbeans.modules.tomcat5.bundled, org.openide.src, org.netbeans.api.mdr,
com.sun.avk.dynamic, org.netbeans.modules.j2ee.refactoring,
org.netbeans.modules.j2ee.common, org.netbeans.tasklistapi, org.openide.io,
org.netbeans.modules.websvc.registry, org.openide.loaders, org.netbeans.core,
org.netbeans.modules.settings, org.netbeans.api.java,
org.netbeans.modules.j2ee.platform, org.netbeans.modules.db,
org.netbeans.modules.tasklist.core, org.netbeans.core.multiview,
org.netbeans.modules.i18n.form, org.netbeans.modules.java.project,
org.netbeans.modules.j2eeserver, org.netbeans.modules.javadoc,
org.netbeans.modules.websvc.dev, org.netbeans.core.windows,
org.netbeans.modules.java.j2seproject, org.netbeans.modules.projectuiapi,
org.netbeans.upgrader, javax.jmi.reflect, org.netbeans.modules.debugger.jpda.ui,
org.netbeans.modules.vcs.profiles.cvsprofiles,
org.netbeans.modules.j2ee.dd.webservice, org.netbeans.modules.java.examples,
org.netbeans.lib.cvsclient, org.netbeans.modules.j2ee.ejbfreeform,
org.netbeans.modules.schema2beans, org.netbeans.modules.editor.lib,
org.netbeans.modules.xml.text, org.netbeans.modules.xml.tools,
org.netbeans.modules.properties.syntax,
org.netbeans.modules.editor.errorstripe.feature,
org.netbeans.modules.j2ee.earproject, org.netbeans.modules.servletapi,
org.netbeans.modules.javacore, org.netbeans.modules.xml.multiview,
org.netbeans.modules.junit, org.netbeans.modules.editor.errorstripe.annotations,
org.netbeans.modules.xml.schema, org.openide, org.netbeans.modules.j2ee.ant,
org.netbeans.modules.form, org.netbeans.modules.javahelp,
org.netbeans.modules.utilities, org.netbeans.swing.tabcontrol,
org.netbeans.modules.editor.bookmarks, org.netbeans.modules.jmiutils]
Do not depend on org.openide anymore, depend on its libraries. Update
C:\acvs\foobar\bar\nbproject\project.xml
C:\acvs\nb_all\nbbuild\netbeans\harness\build.xml:45: No dependent module
org.openide.util
BUILD FAILED (total time: 0 seconds)