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F2 - self hosting workspace on F2 (note org.eclipse.ui needs org.eclipse.ui.win32 under Windows) - delete org.eclipse.ui.win32 observe: you end up having a lot of red Xs on projects - add org.eclipse.ui.win32 observe: red Xs still present. The only way I found to get rid of them is a full build.
The .classpath file of org.eclipse.ui.win32 is not recreated the same when it is added back. I started with an empty workspace and added all required projects of org.eclipse.ui as binary projects, then added org.eclipse.ui & org.eclipse.ui.win32 as source projects. This was the .classpath file of org.eclipse.ui.win32: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.apache.xerces"/> <classpathentry kind="src" path="/org.eclipse.core.resources"/> <classpathentry kind="src" path="/org.eclipse.update.core"/> <classpathentry kind="src" path="/org.eclipse.help"/> <classpathentry exported="true" kind="src" path="/org.eclipse.swt"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> After deleting org.eclipse.ui.win32 and adding it back, its .classpath file was: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> Moving to PDE...
I also noticed that the behavior is different depending on the plugin directory used. First launch eclipse in eclipse and add the above mentioned plugins from the host workspace directory (ie. default location) org.eclipse.ui .classpath: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbench"/> <classpathentry exported="true" kind="lib" path="/org.eclipse.ui.win32/workbenchwin32.jar" rootpath="" sourcepath="/org.eclipse.ui.win32/workbenchwin32src.zip"/> <classpathentry kind="src" path="/org.apache.xerces"/> <classpathentry kind="src" path="/org.eclipse.core.resources"/> <classpathentry kind="src" path="/org.eclipse.update.core"/> <classpathentry kind="src" path="/org.eclipse.help"/> <classpathentry exported="true" kind="src" path="/org.eclipse.swt"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> ui.win32 .classpath: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.apache.xerces"/> <classpathentry kind="src" path="/org.eclipse.core.resources"/> <classpathentry kind="src" path="/org.eclipse.update.core"/> <classpathentry kind="src" path="/org.eclipse.help"/> <classpathentry exported="true" kind="src" path="/org.eclipse.swt"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> Delete ui.win32, you get errors on ui. Add ui.win32 back and it changes to: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> ================================================================================ Now Launch eclipse in eclipse and add plugins from the original eclipse/plugins directory org.eclipse.ui .classpath: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbench"/> <classpathentry kind="src" path="/org.apache.xerces"/> <classpathentry kind="src" path="/org.eclipse.core.resources"/> <classpathentry kind="src" path="/org.eclipse.update.core"/> <classpathentry kind="src" path="/org.eclipse.help"/> <classpathentry exported="true" kind="src" path="/org.eclipse.swt"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> ui.win32 .classpath: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.apache.xerces"/> <classpathentry kind="src" path="/org.eclipse.core.resources"/> <classpathentry kind="src" path="/org.eclipse.update.core"/> <classpathentry kind="src" path="/org.eclipse.help"/> <classpathentry exported="true" kind="src" path="/org.eclipse.swt"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath> Delete ui.win32, you get NO errors on ui even after a full build. Add ui.win32 back and it has 2 errors which never go away: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src-workbenchwin32"/> <classpathentry kind="src" path="/org.eclipse.ui"/> <classpathentry kind="src" path="/org.eclipse.core.boot"/> <classpathentry kind="src" path="/org.eclipse.core.runtime"/> <classpathentry kind="var" path="JRE_LIB" rootpath="JRE_SRCROOT" sourcepath="JRE_SRC"/> <classpathentry kind="output" path="bin"/> </classpath>
Another similar bug related to fragment classpath computation. If you start running out of time, move it back to me.
This may be permanent limitation in 2.0. Import wizard is designed to import plug-ins and fragments in a batch. In particular, it is designed to result plug- ins referenced by fragments in the list of selected plug-in. When fragments are imported alone, they are not capable of setting the classpath correctly even if the referenced plug-in already exists in the workspace. The workaround for this problem is to delete/add plug-ins and fragments together. For example, remove org.eclipse.ui and org.eclipse.ui.win32 in lock- step. Alternatively, repair the classpath by calling 'Update Classpath' from the pop-up menu.
Moved to fixed by accident - reopening.
*** Bug 17268 has been marked as a duplicate of this bug. ***
Fixed.
