org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/JavaDebugPreferencePage.java - jdt/eclipse.jdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2016 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.debug.ui;


 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.preferences.DefaultScope;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
 import org.eclipse.core.runtime.preferences.IPreferencesService;
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.debug.internal.ui.SWTFactory;
 import org.eclipse.jdt.debug.core.IJavaBreakpoint;
 import org.eclipse.jdt.debug.core.JDIDebugModel;
 import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
 import org.eclipse.jdt.internal.launching.LaunchingPlugin;
 import org.eclipse.jdt.launching.JavaRuntime;
 import org.eclipse.jface.preference.FieldEditor;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.preference.IntegerFieldEditor;
 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.jface.preference.StringFieldEditor;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.PropertyChangeEvent;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPreferencePage;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.PreferenceLinkArea;
 import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
 import org.osgi.service.prefs.BackingStoreException;

 /**
  * Preference page for debug preferences that apply specifically to
  * Java Debugging.
  */
 public class JavaDebugPreferencePage extends PreferencePage implements IWorkbenchPreferencePage, IPropertyChangeListener {

 	/**
 	 * This class exists to provide visibility to the
 	 * <code>refreshValidState</code> method and to perform more intelligent
 	 * clearing of the error message.
 	 */
 	protected class JavaDebugIntegerFieldEditor extends IntegerFieldEditor {

 		public JavaDebugIntegerFieldEditor(String name, String labelText, Composite parent) {
 			super(name, labelText, parent);
 		}

 		@Override
 		protected void refreshValidState() {
 			super.refreshValidState();
 		}

 		@Override
 		protected void clearErrorMessage() {
 			if (canClearErrorMessage()) {
 				super.clearErrorMessage();
 			}
 		}
 	}

 	// Suspend preference widgets
 	private Button fSuspendButton;
 	private Button fSuspendOnCompilationErrors;
 	private Button fSuspendDuringEvaluations;
 	private Button fOpenInspector;
 	private Button fPromptUnableToInstallBreakpoint;
 	private Button fPromptDeleteConditionalBreakpoint;
 	private Button fFilterUnrelatedBreakpoints;
 	private Button fOnlyIncludeExportedEntries;
 	private Combo fSuspendVMorThread;
 	private Combo fWatchpoint;

 	// Hot code replace preference widgets
 	private Button fEnableHCRButton;
 	private Button fAlertHCRButton;
 	private Button fAlertHCRNotSupportedButton;
 	private Button fAlertObsoleteButton;
 	private Button fPerformHCRWithCompilationErrors;
 	private Button fShowStepResult;
 	private Button fAdvancedSourcelookup;

 	// Timeout preference widgets
 	private JavaDebugIntegerFieldEditor fTimeoutText;
 	private JavaDebugIntegerFieldEditor fConnectionTimeoutText;

 	public JavaDebugPreferencePage() {
 		super();
 		setPreferenceStore(JDIDebugUIPlugin.getDefault().getPreferenceStore());
 		setDescription(DebugUIMessages.JavaDebugPreferencePage_description);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.preference.PreferencePage#createControl(org.eclipse.swt.widgets.Composite)
 	 */
 	@Override
 	public void createControl(Composite parent) {
 		super.createControl(parent);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaDebugHelpContextIds.JAVA_DEBUG_PREFERENCE_PAGE);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
 	 */
 	@Override
 	protected Control createContents(Composite parent) {
 		//The main composite
 		Composite composite = SWTFactory.createComposite(parent, parent.getFont(), 1, 1, 0, 0, GridData.FILL);
 		PreferenceLinkArea link = new PreferenceLinkArea(composite, SWT.NONE,
 				"org.eclipse.debug.ui.DebugPreferencePage", DebugUIMessages.JavaDebugPreferencePage_0, //$NON-NLS-1$
 				(IWorkbenchPreferenceContainer) getContainer(),null);
 		link.getControl().setFont(composite.getFont());
 		Group group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Suspend_Execution_1, 2, 1, GridData.FILL_HORIZONTAL);
 		fSuspendButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend__execution_on_uncaught_exceptions_1, null, false, 2);
 		fSuspendOnCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend_execution_on_co_mpilation_errors_1, null, false, 2);
 		fSuspendDuringEvaluations = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_14, null, false, 2);
 		fOpenInspector = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_20, null, false, 2);

 		SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_21, 1);
 		fSuspendVMorThread = new Combo(group, SWT.BORDER|SWT.READ_ONLY);
 		fSuspendVMorThread.setItems(new String[]{DebugUIMessages.JavaDebugPreferencePage_22, DebugUIMessages.JavaDebugPreferencePage_23});
 		fSuspendVMorThread.setFont(group.getFont());

 		SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_24, 1);
 		fWatchpoint = new Combo(group, SWT.BORDER | SWT.READ_ONLY);
 		fWatchpoint.setItems(new String[] {DebugUIMessages.JavaDebugPreferencePage_25, DebugUIMessages.JavaDebugPreferencePage_26, DebugUIMessages.JavaDebugPreferencePage_27});
 		fWatchpoint.setFont(group.getFont());

 		group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Hot_Code_Replace_2, 1, 1, GridData.FILL_HORIZONTAL);
 		fEnableHCRButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Enable_hot_code_replace_1, null, true, 1);
 		fAlertHCRButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_fails_1, null, false, 1);
 		fAlertHCRNotSupportedButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_is_not_supported_1, null, false, 1);
 		fAlertObsoleteButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_obsolete_methods_remain_1, null, false, 1);
 		fPerformHCRWithCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Replace_classfiles_containing_compilation_errors_1, null, false, 1);

 		group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Communication_1, 1, 1, GridData.FILL_HORIZONTAL);
 		Composite space = SWTFactory.createComposite(group, group.getFont(), 1, 1, GridData.FILL_HORIZONTAL);

 		fTimeoutText = new JavaDebugIntegerFieldEditor(JDIDebugModel.PREF_REQUEST_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage_Debugger__timeout__2, space);
 		fTimeoutText.setPage(this);
 		fTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE);
 		fTimeoutText.setValidRange(JDIDebugModel.DEF_REQUEST_TIMEOUT, Integer.MAX_VALUE);
 		fTimeoutText.setErrorMessage(NLS.bind(DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] {new Integer(JDIDebugModel.DEF_REQUEST_TIMEOUT)}));
 		fTimeoutText.load();
 		fConnectionTimeoutText = new JavaDebugIntegerFieldEditor(JavaRuntime.PREF_CONNECT_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage__Launch_timeout__ms___1, space);
 		fConnectionTimeoutText.setPage(this);
 		fConnectionTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE);
 		fConnectionTimeoutText.setValidRange(JavaRuntime.DEF_CONNECT_TIMEOUT, Integer.MAX_VALUE);
 		fConnectionTimeoutText.setErrorMessage(NLS.bind(DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] {new Integer(JavaRuntime.DEF_CONNECT_TIMEOUT)}));
 		fConnectionTimeoutText.load();

 		SWTFactory.createVerticalSpacer(composite, 1);
 		fPromptUnableToInstallBreakpoint = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_19, null, false, 1);
 		fPromptDeleteConditionalBreakpoint= SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_promptWhenDeletingCondidtionalBreakpoint, null, false, 1);
 		fFilterUnrelatedBreakpoints = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_filterUnrelatedBreakpoints, null, false, 1);

 		SWTFactory.createVerticalSpacer(composite, 1);
 		fOnlyIncludeExportedEntries = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_only_include_exported_entries, null, false, 1);

 		SWTFactory.createVerticalSpacer(composite, 1);
 		fShowStepResult = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_ShowStepResult_1, null, false, 1);

 		SWTFactory.createVerticalSpacer(composite, 1);
 		fAdvancedSourcelookup = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_advancedSourcelookup, null, false, 1);

 		setValues();

 		fTimeoutText.setPropertyChangeListener(this);
 		fConnectionTimeoutText.setPropertyChangeListener(this);
 		return composite;
 	}

 	@Override
 	public void init(IWorkbench workbench) {}

 	@Override
 	public boolean performOk() {
 		IPreferenceStore store = getPreferenceStore();
 		store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED, fAlertHCRButton.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED, fAlertHCRNotSupportedButton.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS, fAlertObsoleteButton.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, fSuspendButton.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, fSuspendOnCompilationErrors.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT, fPromptUnableToInstallBreakpoint.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT, fPromptDeleteConditionalBreakpoint.getSelection());
 		store.setValue(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION, fOpenInspector.getSelection());
 		IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier());
 		if(prefs != null) {
 			prefs.putBoolean(JDIDebugPlugin.PREF_ENABLE_HCR, fEnableHCRButton.getSelection());
 			prefs.putBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, fSuspendDuringEvaluations.getSelection());
 			int selectionIndex = fSuspendVMorThread.getSelectionIndex();
 			int policy = IJavaBreakpoint.SUSPEND_THREAD;
 			if (selectionIndex > 0) {
 				policy = IJavaBreakpoint.SUSPEND_VM;
 			}
 			prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, policy);
 			prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, fWatchpoint.getSelectionIndex());
 			prefs.putBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, fPerformHCRWithCompilationErrors.getSelection());
 			prefs.putBoolean(JDIDebugModel.PREF_SHOW_STEP_RESULT, fShowStepResult.getSelection());
 			prefs.putInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, fTimeoutText.getIntValue());
 			prefs.putBoolean(JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, fFilterUnrelatedBreakpoints.getSelection());
 			prefs.putBoolean(JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, fAdvancedSourcelookup.getSelection());
 			try {
 				prefs.flush();
 			}
 			catch (BackingStoreException e) {
 				JDIDebugUIPlugin.log(e);
 			}
 		}
 		prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
 		if(prefs != null) {
 			prefs.putInt(JavaRuntime.PREF_CONNECT_TIMEOUT, fConnectionTimeoutText.getIntValue());
 			prefs.putBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, fOnlyIncludeExportedEntries.getSelection());
 			try {
 				prefs.flush();
 			}
 			catch (BackingStoreException e) {
 				JDIDebugUIPlugin.log(e);
 			}
 		}
 		return true;
 	}

 	@Override
 	protected void performDefaults() {
 		IPreferenceStore store = getPreferenceStore();
 		fSuspendButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS));
 		fSuspendOnCompilationErrors.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS));
 		fAlertHCRButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED));
 		fAlertHCRNotSupportedButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED));
 		fAlertObsoleteButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS));
 		fPromptUnableToInstallBreakpoint.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT));
 		fPromptDeleteConditionalBreakpoint.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT));
 		fOpenInspector.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION));
 		IEclipsePreferences prefs = DefaultScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier());
 		if(prefs != null) {
 			fEnableHCRButton.setSelection(prefs.getBoolean(JDIDebugPlugin.PREF_ENABLE_HCR, true));
 			fSuspendDuringEvaluations.setSelection(prefs.getBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true));
 			int value = prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD);
 			fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD) ? 0 : 1);
 			fWatchpoint.select(prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0));
 			fPerformHCRWithCompilationErrors.setSelection(prefs.getBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true));
 			fShowStepResult.setSelection(prefs.getBoolean(JDIDebugModel.PREF_SHOW_STEP_RESULT, true));
 			fTimeoutText.setStringValue(new Integer(prefs.getInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT)).toString());
 			fFilterUnrelatedBreakpoints.setSelection(prefs.getBoolean(JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, true));
 			fAdvancedSourcelookup.setSelection(prefs.getBoolean(JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, true));
 		}
 		prefs = DefaultScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
 		if(prefs != null) {
 			fConnectionTimeoutText.setStringValue(new Integer(prefs.getInt(JavaRuntime.PREF_CONNECT_TIMEOUT,JavaRuntime.DEF_CONNECT_TIMEOUT)).toString());
 			fOnlyIncludeExportedEntries.setSelection(prefs.getBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false));
 		}
 		super.performDefaults();
 	}

 	/**
 	 * Set the values of the component widgets based on the
 	 * values in the preference store
 	 */
 	private void setValues() {
 		IPreferenceStore store = getPreferenceStore();
 		fSuspendButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS));
 		fSuspendOnCompilationErrors.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS));
 		fAlertHCRButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED));
 		fAlertHCRNotSupportedButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED));
 		fAlertObsoleteButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS));
 		fPromptUnableToInstallBreakpoint.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT));
 		fPromptDeleteConditionalBreakpoint.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT));
 		fOpenInspector.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION));

 		IPreferencesService prefs = Platform.getPreferencesService();

 		String bundleId = JDIDebugPlugin.getUniqueIdentifier();
 		fEnableHCRButton.setSelection(prefs.getBoolean(bundleId, JDIDebugPlugin.PREF_ENABLE_HCR, true, null));
 		fSuspendDuringEvaluations.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true, null));
 		int value = prefs.getInt(bundleId, JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD, null);
 		fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD ? 0 : 1));
 		fWatchpoint.select(prefs.getInt(bundleId, JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0, null));
 		fPerformHCRWithCompilationErrors.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true, null));
 		fShowStepResult.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_SHOW_STEP_RESULT, true, null));
 		fTimeoutText.setStringValue(new Integer(prefs.getInt(bundleId, JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT, null)).toString());
 		fFilterUnrelatedBreakpoints.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, true, null));
 		fAdvancedSourcelookup.setSelection(prefs.getBoolean(bundleId, JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, true, null));

 		bundleId = LaunchingPlugin.ID_PLUGIN;
 		fConnectionTimeoutText.setStringValue(new Integer(prefs.getInt(bundleId, JavaRuntime.PREF_CONNECT_TIMEOUT, JavaRuntime.DEF_CONNECT_TIMEOUT, null)).toString());
 		fOnlyIncludeExportedEntries.setSelection(prefs.getBoolean(bundleId, JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false, null));
 	}

 	@Override
 	public void propertyChange(PropertyChangeEvent event) {
 		if (event.getProperty().equals(FieldEditor.IS_VALID)) {
 			boolean newValue = ((Boolean) event.getNewValue()).booleanValue();
 			// If the new value is true then we must check all field editors.
 			// If it is false, then the page is invalid in any case.
 			if (newValue) {
 				if (fTimeoutText != null && event.getSource() != fTimeoutText) {
 					fTimeoutText.refreshValidState();
 				}
 				if (fConnectionTimeoutText != null && event.getSource() != fConnectionTimeoutText) {
 					fConnectionTimeoutText.refreshValidState();
 				}
 			}
 			setValid(fTimeoutText.isValid() && fConnectionTimeoutText.isValid());
 			getContainer().updateButtons();
 			updateApplyButton();
 		}
 	}

 	/**
 	 * if the error message can be cleared or not
 	 * @return true if the error message can be cleared, false otherwise
 	 */
 	protected boolean canClearErrorMessage() {
 		if (fTimeoutText.isValid() && fConnectionTimeoutText.isValid()) {
 			return true;
 		}
 		return false;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2016 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.debug.ui;


	import org.eclipse.core.runtime.Platform;
	import org.eclipse.core.runtime.preferences.DefaultScope;
	import org.eclipse.core.runtime.preferences.IEclipsePreferences;
	import org.eclipse.core.runtime.preferences.IPreferencesService;
	import org.eclipse.core.runtime.preferences.InstanceScope;
	import org.eclipse.debug.internal.ui.SWTFactory;
	import org.eclipse.jdt.debug.core.IJavaBreakpoint;
	import org.eclipse.jdt.debug.core.JDIDebugModel;
	import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
	import org.eclipse.jdt.internal.launching.LaunchingPlugin;
	import org.eclipse.jdt.launching.JavaRuntime;
	import org.eclipse.jface.preference.FieldEditor;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.preference.IntegerFieldEditor;
	import org.eclipse.jface.preference.PreferencePage;
	import org.eclipse.jface.preference.StringFieldEditor;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.PropertyChangeEvent;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPreferencePage;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.PreferenceLinkArea;
	import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
	import org.osgi.service.prefs.BackingStoreException;

	/**
	* Preference page for debug preferences that apply specifically to
	* Java Debugging.
	*/
	public class JavaDebugPreferencePage extends PreferencePage implements IWorkbenchPreferencePage, IPropertyChangeListener {

	/**
	* This class exists to provide visibility to the
	* <code>refreshValidState</code> method and to perform more intelligent
	* clearing of the error message.
	*/
	protected class JavaDebugIntegerFieldEditor extends IntegerFieldEditor {

	public JavaDebugIntegerFieldEditor(String name, String labelText, Composite parent) {
	super(name, labelText, parent);
	}

	@Override
	protected void refreshValidState() {
	super.refreshValidState();
	}

	@Override
	protected void clearErrorMessage() {
	if (canClearErrorMessage()) {
	super.clearErrorMessage();
	}
	}
	}

	// Suspend preference widgets
	private Button fSuspendButton;
	private Button fSuspendOnCompilationErrors;
	private Button fSuspendDuringEvaluations;
	private Button fOpenInspector;
	private Button fPromptUnableToInstallBreakpoint;
	private Button fPromptDeleteConditionalBreakpoint;
	private Button fFilterUnrelatedBreakpoints;
	private Button fOnlyIncludeExportedEntries;
	private Combo fSuspendVMorThread;
	private Combo fWatchpoint;

	// Hot code replace preference widgets
	private Button fEnableHCRButton;
	private Button fAlertHCRButton;
	private Button fAlertHCRNotSupportedButton;
	private Button fAlertObsoleteButton;
	private Button fPerformHCRWithCompilationErrors;
	private Button fShowStepResult;
	private Button fAdvancedSourcelookup;

	// Timeout preference widgets
	private JavaDebugIntegerFieldEditor fTimeoutText;
	private JavaDebugIntegerFieldEditor fConnectionTimeoutText;

	public JavaDebugPreferencePage() {
	super();
	setPreferenceStore(JDIDebugUIPlugin.getDefault().getPreferenceStore());
	setDescription(DebugUIMessages.JavaDebugPreferencePage_description);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.preference.PreferencePage#createControl(org.eclipse.swt.widgets.Composite)
	*/
	@Override
	public void createControl(Composite parent) {
	super.createControl(parent);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaDebugHelpContextIds.JAVA_DEBUG_PREFERENCE_PAGE);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	*/
	@Override
	protected Control createContents(Composite parent) {
	//The main composite
	Composite composite = SWTFactory.createComposite(parent, parent.getFont(), 1, 1, 0, 0, GridData.FILL);
	PreferenceLinkArea link = new PreferenceLinkArea(composite, SWT.NONE,
	"org.eclipse.debug.ui.DebugPreferencePage", DebugUIMessages.JavaDebugPreferencePage_0, //$NON-NLS-1$
	(IWorkbenchPreferenceContainer) getContainer(),null);
	link.getControl().setFont(composite.getFont());
	Group group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Suspend_Execution_1, 2, 1, GridData.FILL_HORIZONTAL);
	fSuspendButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend__execution_on_uncaught_exceptions_1, null, false, 2);
	fSuspendOnCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend_execution_on_co_mpilation_errors_1, null, false, 2);
	fSuspendDuringEvaluations = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_14, null, false, 2);
	fOpenInspector = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_20, null, false, 2);

	SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_21, 1);
	fSuspendVMorThread = new Combo(group, SWT.BORDER\|SWT.READ_ONLY);
	fSuspendVMorThread.setItems(new String[]{DebugUIMessages.JavaDebugPreferencePage_22, DebugUIMessages.JavaDebugPreferencePage_23});
	fSuspendVMorThread.setFont(group.getFont());

	SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_24, 1);
	fWatchpoint = new Combo(group, SWT.BORDER \| SWT.READ_ONLY);
	fWatchpoint.setItems(new String[] {DebugUIMessages.JavaDebugPreferencePage_25, DebugUIMessages.JavaDebugPreferencePage_26, DebugUIMessages.JavaDebugPreferencePage_27});
	fWatchpoint.setFont(group.getFont());

	group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Hot_Code_Replace_2, 1, 1, GridData.FILL_HORIZONTAL);
	fEnableHCRButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Enable_hot_code_replace_1, null, true, 1);
	fAlertHCRButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_fails_1, null, false, 1);
	fAlertHCRNotSupportedButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_is_not_supported_1, null, false, 1);
	fAlertObsoleteButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_obsolete_methods_remain_1, null, false, 1);
	fPerformHCRWithCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Replace_classfiles_containing_compilation_errors_1, null, false, 1);

	group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Communication_1, 1, 1, GridData.FILL_HORIZONTAL);
	Composite space = SWTFactory.createComposite(group, group.getFont(), 1, 1, GridData.FILL_HORIZONTAL);

	fTimeoutText = new JavaDebugIntegerFieldEditor(JDIDebugModel.PREF_REQUEST_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage_Debugger__timeout__2, space);
	fTimeoutText.setPage(this);
	fTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE);
	fTimeoutText.setValidRange(JDIDebugModel.DEF_REQUEST_TIMEOUT, Integer.MAX_VALUE);
	fTimeoutText.setErrorMessage(NLS.bind(DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] {new Integer(JDIDebugModel.DEF_REQUEST_TIMEOUT)}));
	fTimeoutText.load();
	fConnectionTimeoutText = new JavaDebugIntegerFieldEditor(JavaRuntime.PREF_CONNECT_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage__Launch_timeout__ms___1, space);
	fConnectionTimeoutText.setPage(this);
	fConnectionTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE);
	fConnectionTimeoutText.setValidRange(JavaRuntime.DEF_CONNECT_TIMEOUT, Integer.MAX_VALUE);
	fConnectionTimeoutText.setErrorMessage(NLS.bind(DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] {new Integer(JavaRuntime.DEF_CONNECT_TIMEOUT)}));
	fConnectionTimeoutText.load();

	SWTFactory.createVerticalSpacer(composite, 1);
	fPromptUnableToInstallBreakpoint = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_19, null, false, 1);
	fPromptDeleteConditionalBreakpoint= SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_promptWhenDeletingCondidtionalBreakpoint, null, false, 1);
	fFilterUnrelatedBreakpoints = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_filterUnrelatedBreakpoints, null, false, 1);

	SWTFactory.createVerticalSpacer(composite, 1);
	fOnlyIncludeExportedEntries = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_only_include_exported_entries, null, false, 1);

	SWTFactory.createVerticalSpacer(composite, 1);
	fShowStepResult = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_ShowStepResult_1, null, false, 1);

	SWTFactory.createVerticalSpacer(composite, 1);
	fAdvancedSourcelookup = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_advancedSourcelookup, null, false, 1);

	setValues();

	fTimeoutText.setPropertyChangeListener(this);
	fConnectionTimeoutText.setPropertyChangeListener(this);
	return composite;
	}

	@Override
	public void init(IWorkbench workbench) {}

	@Override
	public boolean performOk() {
	IPreferenceStore store = getPreferenceStore();
	store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED, fAlertHCRButton.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED, fAlertHCRNotSupportedButton.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS, fAlertObsoleteButton.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, fSuspendButton.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, fSuspendOnCompilationErrors.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT, fPromptUnableToInstallBreakpoint.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT, fPromptDeleteConditionalBreakpoint.getSelection());
	store.setValue(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION, fOpenInspector.getSelection());
	IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier());
	if(prefs != null) {
	prefs.putBoolean(JDIDebugPlugin.PREF_ENABLE_HCR, fEnableHCRButton.getSelection());
	prefs.putBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, fSuspendDuringEvaluations.getSelection());
	int selectionIndex = fSuspendVMorThread.getSelectionIndex();
	int policy = IJavaBreakpoint.SUSPEND_THREAD;
	if (selectionIndex > 0) {
	policy = IJavaBreakpoint.SUSPEND_VM;
	}
	prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, policy);
	prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, fWatchpoint.getSelectionIndex());
	prefs.putBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, fPerformHCRWithCompilationErrors.getSelection());
	prefs.putBoolean(JDIDebugModel.PREF_SHOW_STEP_RESULT, fShowStepResult.getSelection());
	prefs.putInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, fTimeoutText.getIntValue());
	prefs.putBoolean(JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, fFilterUnrelatedBreakpoints.getSelection());
	prefs.putBoolean(JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, fAdvancedSourcelookup.getSelection());
	try {
	prefs.flush();
	}
	catch (BackingStoreException e) {
	JDIDebugUIPlugin.log(e);
	}
	}
	prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
	if(prefs != null) {
	prefs.putInt(JavaRuntime.PREF_CONNECT_TIMEOUT, fConnectionTimeoutText.getIntValue());
	prefs.putBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, fOnlyIncludeExportedEntries.getSelection());
	try {
	prefs.flush();
	}
	catch (BackingStoreException e) {
	JDIDebugUIPlugin.log(e);
	}
	}
	return true;
	}

	@Override
	protected void performDefaults() {
	IPreferenceStore store = getPreferenceStore();
	fSuspendButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS));
	fSuspendOnCompilationErrors.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS));
	fAlertHCRButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED));
	fAlertHCRNotSupportedButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED));
	fAlertObsoleteButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS));
	fPromptUnableToInstallBreakpoint.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT));
	fPromptDeleteConditionalBreakpoint.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT));
	fOpenInspector.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION));
	IEclipsePreferences prefs = DefaultScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier());
	if(prefs != null) {
	fEnableHCRButton.setSelection(prefs.getBoolean(JDIDebugPlugin.PREF_ENABLE_HCR, true));
	fSuspendDuringEvaluations.setSelection(prefs.getBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true));
	int value = prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD);
	fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD) ? 0 : 1);
	fWatchpoint.select(prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0));
	fPerformHCRWithCompilationErrors.setSelection(prefs.getBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true));
	fShowStepResult.setSelection(prefs.getBoolean(JDIDebugModel.PREF_SHOW_STEP_RESULT, true));
	fTimeoutText.setStringValue(new Integer(prefs.getInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT)).toString());
	fFilterUnrelatedBreakpoints.setSelection(prefs.getBoolean(JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, true));
	fAdvancedSourcelookup.setSelection(prefs.getBoolean(JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, true));
	}
	prefs = DefaultScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
	if(prefs != null) {
	fConnectionTimeoutText.setStringValue(new Integer(prefs.getInt(JavaRuntime.PREF_CONNECT_TIMEOUT,JavaRuntime.DEF_CONNECT_TIMEOUT)).toString());
	fOnlyIncludeExportedEntries.setSelection(prefs.getBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false));
	}
	super.performDefaults();
	}

	/**
	* Set the values of the component widgets based on the
	* values in the preference store
	*/
	private void setValues() {
	IPreferenceStore store = getPreferenceStore();
	fSuspendButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS));
	fSuspendOnCompilationErrors.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS));
	fAlertHCRButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED));
	fAlertHCRNotSupportedButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED));
	fAlertObsoleteButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS));
	fPromptUnableToInstallBreakpoint.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT));
	fPromptDeleteConditionalBreakpoint.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT));
	fOpenInspector.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION));

	IPreferencesService prefs = Platform.getPreferencesService();

	String bundleId = JDIDebugPlugin.getUniqueIdentifier();
	fEnableHCRButton.setSelection(prefs.getBoolean(bundleId, JDIDebugPlugin.PREF_ENABLE_HCR, true, null));
	fSuspendDuringEvaluations.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true, null));
	int value = prefs.getInt(bundleId, JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD, null);
	fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD ? 0 : 1));
	fWatchpoint.select(prefs.getInt(bundleId, JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0, null));
	fPerformHCRWithCompilationErrors.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true, null));
	fShowStepResult.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_SHOW_STEP_RESULT, true, null));
	fTimeoutText.setStringValue(new Integer(prefs.getInt(bundleId, JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT, null)).toString());
	fFilterUnrelatedBreakpoints.setSelection(prefs.getBoolean(bundleId, JDIDebugModel.PREF_FILTER_BREAKPOINTS_FROM_UNRELATED_SOURCES, true, null));
	fAdvancedSourcelookup.setSelection(prefs.getBoolean(bundleId, JDIDebugPlugin.PREF_ENABLE_ADVANCED_SOURCELOOKUP, true, null));

	bundleId = LaunchingPlugin.ID_PLUGIN;
	fConnectionTimeoutText.setStringValue(new Integer(prefs.getInt(bundleId, JavaRuntime.PREF_CONNECT_TIMEOUT, JavaRuntime.DEF_CONNECT_TIMEOUT, null)).toString());
	fOnlyIncludeExportedEntries.setSelection(prefs.getBoolean(bundleId, JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false, null));
	}

	@Override
	public void propertyChange(PropertyChangeEvent event) {
	if (event.getProperty().equals(FieldEditor.IS_VALID)) {
	boolean newValue = ((Boolean) event.getNewValue()).booleanValue();
	// If the new value is true then we must check all field editors.
	// If it is false, then the page is invalid in any case.
	if (newValue) {
	if (fTimeoutText != null && event.getSource() != fTimeoutText) {
	fTimeoutText.refreshValidState();
	}
	if (fConnectionTimeoutText != null && event.getSource() != fConnectionTimeoutText) {
	fConnectionTimeoutText.refreshValidState();
	}
	}
	setValid(fTimeoutText.isValid() && fConnectionTimeoutText.isValid());
	getContainer().updateButtons();
	updateApplyButton();
	}
	}

	/**
	* if the error message can be cleared or not
	* @return true if the error message can be cleared, false otherwise
	*/
	protected boolean canClearErrorMessage() {
	if (fTimeoutText.isValid() && fConnectionTimeoutText.isValid()) {
	return true;
	}
	return false;
	}
	}