I am new to optaPlanner and am trying to better learn how to use it by changing around the dinner party example to solve a different type of problem. I added a new score rule called sameSleepingPreference, which uses a new enum I created called sleepingPreference that is a property of the guest. People who have the same sleeping preference are put next to each other.
rule "sameSleepingPreference"
when
$leftDesignation : SeatDesignation($leftGuest : guest)
$rightDesignation : SeatDesignation(isRightOf($leftDesignation), $rightGuest : guest)
eval($leftGuest.sleepingPreference.equals($rightGuest.sleepingPreference))
then
scoreHolder.addConstraintMatch(kcontext, +1);
end
When I try to run optaPlanner using a data sheet of only four people, the example works fine. However, I made a longer list of 144 people by changing around one of the original data sheets from the dinner party example, and it gives me this error:
2015-07-23 10:41:59,414 [AWT-EventQueue-0] INFO Opened: data\dinnerparty\unsolved\hannahWeddingTest.xml
2015-07-23 10:42:01,012 [SwingWorker-pool-4-thread-1] INFO Solving started: time spent (97), best score (uninitialized/-14400), environment mode (REPRODUCIBLE), random (JDK with seed 0).
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Solving failed.
at org.optaplanner.examples.common.swingui.SolverAndPersistenceFrame$SolveWorker.done(SolverAndPersistenceFrame.java:297)
at javax.swing.SwingWorker$5.run(Unknown Source)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source)
at sun.swing.AccumulativeRunnable.run(Unknown Source)
at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source)
at javax.swing.Timer.fireActionPerformed(Unknown Source)
at javax.swing.Timer$DoPostEvent.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$300(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: org.optaplanner.examples.dinnerparty.solver.Rule_sameSleepingPreference1438171934Eval0Invoker#a59a25b3 : java.lang.NullPointerException
at org.drools.core.rule.EvalCondition.isAllowed(EvalCondition.java:123)
at org.drools.core.phreak.PhreakEvalNode.doLeftInserts(PhreakEvalNode.java:55)
at org.drools.core.phreak.PhreakEvalNode.doNode(PhreakEvalNode.java:39)
at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:342)
at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:161)
at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:116)
at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:231)
at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:106)
at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1016)
at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1302)
at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1289)
at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1262)
at org.optaplanner.core.impl.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:87)
at org.optaplanner.examples.dinnerparty.solver.solution.initializer.DinnerPartySolutionInitializer.initializeSeatDesignationList(DinnerPartySolutionInitializer.java:69)
at org.optaplanner.examples.dinnerparty.solver.solution.initializer.DinnerPartySolutionInitializer.changeWorkingSolution(DinnerPartySolutionInitializer.java:41)
at org.optaplanner.core.impl.phase.custom.DefaultCustomPhase.doStep(DefaultCustomPhase.java:78)
at org.optaplanner.core.impl.phase.custom.DefaultCustomPhase.solve(DefaultCustomPhase.java:60)
at org.optaplanner.core.impl.solver.DefaultSolver.runPhases(DefaultSolver.java:213)
at org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:176)
at org.optaplanner.examples.common.business.SolutionBusiness.solve(SolutionBusiness.java:302)
at org.optaplanner.examples.common.swingui.SolverAndPersistenceFrame$SolveWorker.doInBackground(SolverAndPersistenceFrame.java:286)
at org.optaplanner.examples.common.swingui.SolverAndPersistenceFrame$SolveWorker.doInBackground(SolverAndPersistenceFrame.java:1)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at org.optaplanner.examples.dinnerparty.solver.Rule_sameSleepingPreference1438171934.eval0(Rule_sameSleepingPreference1438171934.java:8)
at org.optaplanner.examples.dinnerparty.solver.Rule_sameSleepingPreference1438171934Eval0InvokerGenerated.evaluate(Unknown Source)
at org.optaplanner.examples.dinnerparty.solver.Rule_sameSleepingPreference1438171934Eval0Invoker.evaluate(Unknown Source)
at org.drools.core.rule.EvalCondition.isAllowed(EvalCondition.java:118)
... 27 more
Is my example of 144 people just impossible to solve, or is there a different problem? I have tried making the sleeping preference rule add points and subtract points from the score, (I am using simple score) but both cause the program to fail.
This is the recommended way to write that rule, as "eval" is deprecated and drools =='s turn into equal calls:
rule "sameSleepingPreference"
when
$leftDesignation : SeatDesignation($leftGuest : guest)
$rightDesignation : SeatDesignation(isRightOf($leftDesignation), $leftGuest.sleepingPreference == guest.sleepingPreference)
then
scoreHolder.addConstraintMatch(kcontext, +1);
end
Related
I want to generate Document-Term Matrix for 2000 documents using Weka. It is giving following error due to having more than 30000 features available in the dataset.
org.rosuda.REngine.REngineException: Parse error
org.rosuda.REngine.REngineException: Parse error
org.rosuda.REngine.JRI.JRIEngine.parse(JRIEngine.java:262)
org.rosuda.REngine.REngine.parseAndEval(REngine.java:101)
org.rosuda.REngine.REngine.parseAndEval(REngine.java:108)
weka.core.RSessionImpl.parseAndEval(RSessionImpl.java:699)
weka.core.RSession.parseAndEval(RSession.java:361)
weka.core.RUtils.instancesToDataFrame(RUtils.java:115)
weka.gui.beans.JavaGDConsolePanel.pushInstancesToR(JavaGDConsolePanel.ja
va:771)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
weka.gui.explorer.ExplorerRConsolePanel.setInstances(ExplorerRConsolePan
el.java:133)
weka.gui.explorer.Explorer$1.propertyChange(Explorer.java:261)
java.beans.PropertyChangeSupport.fire(Unknown Source)
java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
weka.gui.explorer.PreprocessPanel$14.run(PreprocessPanel.java:535)
java.awt.event.InvocationEvent.dispatch(Unknown Source)
java.awt.EventQueue.dispatchEventImpl(Unknown Source)
java.awt.EventQueue.access$500(Unknown Source)
java.awt.EventQueue$3.run(Unknown Source)
java.awt.EventQueue$3.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown
Source)
java.awt.EventQueue.dispatchEvent(Unknown Source)
java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
... ...
Selected Use an artificial time index Data too large
to calculate PCA. Defaulting to a random projection.
How to solve it?
Your exception is due to the RPlugin package for WEKA. If you do not require access to R from WEKA, uninstall that package to avoid this exception.
When I'm trying to start my Derby Network Server, I'm getting this exception. This has never happened before and I don't now what's the cause of problem. Any ideas?
Exception in thread "main" java.lang.NoSuchFieldError: completionKey
at sun.nio.fs.WindowsNativeDispatcher.initIDs(Native Method)
at sun.nio.fs.WindowsNativeDispatcher.<clinit>(Unknown Source)
at sun.nio.fs.WindowsLinkSupport.getRealPath(Unknown Source)
at sun.nio.fs.WindowsPath.toRealPath(Unknown Source)
at sun.nio.fs.WindowsPath.toRealPath(Unknown Source)
at sun.util.calendar.ZoneInfoFile$1.run(Unknown Source)
at sun.util.calendar.ZoneInfoFile$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.util.calendar.ZoneInfoFile.<clinit>(Unknown Source)
at sun.util.calendar.ZoneInfo.getTimeZone(Unknown Source)
at java.util.TimeZone.getTimeZone(Unknown Source)
at java.util.TimeZone.setDefaultZone(Unknown Source)
at java.util.TimeZone.getDefaultRef(Unknown Source)
at java.util.TimeZone.getDefault(Unknown Source)
at java.text.SimpleDateFormat.initializeCalendar(Unknown Source)
at java.text.SimpleDateFormat.<init>(Unknown Source)
at java.text.DateFormat.get(Unknown Source)
at java.text.DateFormat.getDateInstance(Unknown Source)
at org.apache.derby.iapi.tools.i18n.LocalizedResource.init(Unknown Source)
at org.apache.derby.iapi.tools.i18n.LocalizedResource.<init>(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl.init(Unknown Source)
at org.apache.derby.impl.drda.NetworkServerControlImpl.<init>(Unknown Source)
at org.apache.derby.drda.NetworkServerControl.main(Unknown Source)
This is an Error (!) that is due to running code that was compiled against a class with a field and executing it with another (compiled) version without that field.
Go back and check installed versions, recompile everything, etc. etc-
I try to test my application with FEST. Like in most other applications I have a System.exit() command in there. When I do nothing and run all tests, the test run is aborted when the System.exit() method is called for the first time.
I searched and found something here. It seemed to be what I was looking for, but it leads to an unexpected behavior. When I call System.exit() I get an infinite loop in System.exit() which every time throws the org.fest.swing.security.ExitException. If I catch the exception the application is not closed and the test never ends.
Does anyone have already used FEST like this?
For additional information here the complete stacktrace:
Exception in thread "AWT-EventQueue-0" org.fest.swing.security.ExitException: Application tried to terminate current JVM with status 0
at org.fest.swing.security.NoExitSecurityManager.checkExit(NoExitSecurityManager.java:84)
at java.lang.Runtime.exit(Unknown Source)
at java.lang.System.exit(Unknown Source)
at org.luciferius.banking.swingUi.internal.SwingUiBuilder$1.windowClosed(SwingUiBuilder.java:81)
at java.awt.AWTEventMulticaster.windowClosed(Unknown Source)
at java.awt.Window.processWindowEvent(Unknown Source)
at javax.swing.JFrame.processWindowEvent(Unknown Source)
at java.awt.Window.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Regards, Yggdrasil
Yes, the NoExitSecurityManager can be used to prevent tests being interrupted because the application under test calls System.exit.
The ExitException is thrown in such case and its stack trace is written to console, but unless you catch the exception, it does not prevent the test from continuing and succeeding because it runs on a different thread.
The catch might be in an uncaught exception handler. If you have something like Thread.setDefaultUncaughtExceptionHandler(...) in your code, you will get the infinite loop. Such exception handler needs to be disabled during the tests.
We've been struggling here at the office with a seemingly unsolvable bug in one of our (massive) applets, this one being a Java simulation of MS Word, for exam purposes. The exception seems to stem from swing itself, and I'm not sure how I would go about solving it. Here's what happens:
The applet loads with a loading screen till 100%. After this, the components are all displayed in a broken way as if some of their paint methods are not being called correctly, hovering the cursor over some buttons etc. does make them flash/display for a while. And an exception is printed to the console every second or so. (See below) This bug does NOT occur within Eclipse, only in the browser.
Summary: Applet components all get built without exceptions, but on every "paint" call of a some component (I assume), it visually bugs out and the following is printed every second:
Exception in thread "AWT-EventQueue-11" java.lang.ClassCastException: javax.swing.JLabel cannot be cast to javax.swing.text.JTextComponent
at javax.swing.text.html.EditableView.paint(Unknown Source)
at javax.swing.text.BoxView.paintChild(Unknown Source)
at javax.swing.text.BoxView.paint(Unknown Source)
at javax.swing.text.BoxView.paintChild(Unknown Source)
at javax.swing.text.BoxView.paint(Unknown Source)
at javax.swing.text.ParagraphView.paint(Unknown Source)
at javax.swing.text.html.ParagraphView.paint(Unknown Source)
at javax.swing.text.BoxView.paintChild(Unknown Source)
at javax.swing.text.BoxView.paint(Unknown Source)
at javax.swing.text.html.BlockView.paint(Unknown Source)
at javax.swing.text.BoxView.paintChild(Unknown Source)
at javax.swing.text.BoxView.paint(Unknown Source)
at javax.swing.text.html.BlockView.paint(Unknown Source)
at javax.swing.plaf.basic.BasicHTML$Renderer.paint(Unknown Source)
at javax.swing.plaf.basic.BasicLabelUI.paint(Unknown Source)
at javax.swing.plaf.ComponentUI.update(Unknown Source)
at javax.swing.JComponent.paintComponent(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JLayeredPane.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.access$1000(Unknown Source)
at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Help would be greatly appreciated, as this is driving me nuts, I can't seem to find what triggers this, as the code is from a previous developer, and an utter mess. I have tried different JDK versions.
Thanx.
java.lang.ClassCastException: javax.swing.JLabel cannot be cast to
javax.swing.text.JTextComponent
see components tree for JTextComponents, there isn't JLabel, JLabel isn't member of JTextComponents
safest could be to test if (Xxx instanceof JTextComponent) before any casting
Found a fix to my problem. The target Java version was wrong. In the build.xml file, there were the following lines:
<property name="target" value="1.5" />
<property name="source" value="1.5" />
Changed those to 1.7, and voila! This seems to have been a Swing bug that has been fixed in the newer versions of Java.
I've noticed that this problem can occur when a JLabel with tags around the content contains nested tags. The solution is to escape the angle brackets on the
I experienced an odd behavior with a java desktop application that uses Toplink essentials as persistence provider.
I have a single directory containing all I need for my application: a jar, a lib folder and a JavaDB database. The whole directory is self-contained (I copied it several times without problems, even between different computers).
Today I wanted to copy once more, but my target folder contained a german Umlaut ü (html: ü).
Starting my application failed, with an exception that made it hard to find the reason why (see below).
Of course I know the old naming conventions, but I thought we already left that behind. So my question is, if there is a way to make it run independent of directory naming. It's important since I want to give the application to clients and have only little influence on install dirs.
System: Windows 7, JavaDB 10.5.3
Thanks in advance for your help!
SCHWERWIEGEND: Application class jlabps.JLabPSApp failed to launch
javax.persistence.PersistenceException: No Persistence provider for EntityManage
r named JLAPS_EMB: The following providers:
oracle.toplink.essentials.PersistenceProvider
oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
Returned null to createEntityManagerFactory.
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.
java:154)
at jlabps.JLabPSView.initComponents(JLabPSView.java:401)
at jlabps.JLabPSView.<init>(JLabPSView.java:47)
at jlabps.JLabPSApp.startup(JLabPSApp.java:71)
at org.jdesktop.application.Application$1.run(Application.java:171)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception in thread "AWT-EventQueue-0" java.lang.Error: Application class jlabps
.JLabPSApp failed to launch
at org.jdesktop.application.Application$1.run(Application.java:177)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: javax.persistence.PersistenceException: No Persistence provider for E
ntityManager named JLAPS_EMB: The following providers:
oracle.toplink.essentials.PersistenceProvider
oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
Returned null to createEntityManagerFactory.
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.
java:154)
at jlabps.JLabPSView.initComponents(JLabPSView.java:401)
at jlabps.JLabPSView.<init>(JLabPSView.java:47)
at jlabps.JLabPSApp.startup(JLabPSApp.java:71)
at org.jdesktop.application.Application$1.run(Application.java:171)
... 14 more
Odd. What JVM are you using?
Ensure you have the latest TopLink Essentials patch, I remember an issue with spaces, but not Umlats.
You could also try upgrading to EclipseLink and see if the same issue occurs, if it does please log a bug.