I have installed the xwiki-eclipse-rcp-win32-win32-x86-1.2-rc-1.zip 
simply copiing the content of the ZIP file into a directory and I 
started xEclipse.

I created a new connection to 
http://localhost:8080/xwiki/xmlrpc/confluence with username Admin and 
the password respectively.

After starting it gives a warning:
A conflict occurred for CTRL+P:Binding(CTRL+P,
ParameterizedCommand(Command(org.eclipse.ui.file.print,Print,
Print,
but this seems to be fairly harmless.

When I tried to edit an object and to alter a "select list" value it 
only listed the current value and did not display the possible values. 
When I pressed 'Add' and then 'Cancel' on the pop-up window it gave 
another error:

java.lang.ClassCastException: java.lang.String cannot be cast to 
java.util.List
at 
org.xwiki.eclipse.ui.editors.propertyeditors.ListPropertyEditor$2.widgetSelected(Unknown
 
Source)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.xwiki.eclipse.rcp.Application.start(Unknown Source)
at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

This is harmless, but this also happens when I try to add a value. This 
time it is not that harmless, because it prevents me to add a new value 
to the object. The format of the fields is nice and neat, but it has 
nothing to do with the ordering that I defined in the class the object 
belongs to.

Then I double-click on a page to open it in wiki editing mode. It opens 
fine. Then I double click on the page again and I get the error:

Problems occurred when invoking code from plug-in: "org.eclipse.jface".

com.thoughtworks.xstream.io.StreamException:  : Invalid byte 2 of 3-byte 
UTF-8 sequence.
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:88)
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:70)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:869)
at org.xwiki.eclipse.core.utils.CoreUtils.readDataFromXML(Unknown Source)
at org.xwiki.eclipse.core.storage.LocalXWikiDataStorage.getPage(Unknown 
Source)
at org.xwiki.eclipse.core.DataManager.getPage(Unknown Source)
at org.xwiki.eclipse.ui.actions.OpenXWikiModelObjectAction.run(Unknown 
Source)
at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)
at 
org.eclipse.ui.internal.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:184)
at 
org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:820)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:880)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at 
org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:818)
at 
org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1079)
at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:372)
at 
org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1183)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:263)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:257)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:297)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.xwiki.eclipse.rcp.Application.start(Unknown Source)
at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
Caused by: 
com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException: 
Invalid byte 2 of 3-byte UTF-8 sequence.
at 
com.sun.org.apache.xerces.internal.impl.io.UTF8Reader.invalidByte(UTF8Reader.java:674)
at 
com.sun.org.apache.xerces.internal.impl.io.UTF8Reader.read(UTF8Reader.java:398)
at 
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1742)
at 
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipChar(XMLEntityScanner.java:1416)
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2784)
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at 
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at 
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at 
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at 
com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:225)
at 
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)
at com.thoughtworks.xstream.io.xml.DomDriver.createReader(DomDriver.java:79)
... 44 more

It seems to be harmless, but I can not open the page again even if it 
was closed. I restart xeclipse and still: I can not open the page! This 
renders xeclipse UNUSABLE.

Then I exit xeclipse and I go into the file system on my Windows XP and 
I delete the XEP file that seems to be the local copy of the page. First 
xEclipse tells me that there is some communication problem, and closes 
the connection. I reconnect and now I can open the page.

Next time I try to connect to our external installation. This time the 
url is: https://myserver//xwiki/xmlrpc/confluence

It opens fine and when I click on the '+' in front of the connection it 
shows the spaces. When I try to open a space it gives me an error:

An internal error occurred during: "Fetching children of Main".
org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:3777)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.widgets.Display.error(Display.java:1180)
at org.eclipse.swt.widgets.Display.checkDevice(Display.java:703)
at org.eclipse.swt.widgets.Display.getActiveShell(Display.java:1349)
at 
org.xwiki.eclipse.ui.adapters.XWikiEclipseSpaceSummaryAdapter.getChildren(Unknown
 
Source)
at 
org.xwiki.eclipse.ui.adapters.XWikiEclipseSpaceSummaryAdapter.fetchDeferredChildren(Unknown
 
Source)
at 
org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:234)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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