Bug 28400 JavaEditorPreferencePage and JavaColorManager leak Colors
20021216 everytime you do this: 1. open java editor pref page 2. close the pref page you end up having allocated and not disposed 8 colors 1 is allocated like this at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createColor(JavaEditorPreferencePage.java:560) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.initializeViewerColors(JavaEditorPreferencePage.java:534) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createPreviewer(JavaEditorPreferencePage.java:493) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createSyntaxPage(JavaEditorPreferencePage.java:433) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createContents(JavaEditorPreferencePage.java:942) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:209) and the other 7 are allocated like this: at org.eclipse.jdt.internal.ui.text.JavaColorManager.getColor(JavaColorManager.java:62) at org.eclipse.jdt.internal.ui.text.JavaColorManager.getColor(JavaColorManager.java:85) at org.eclipse.jdt.internal.ui.text.AbstractJavaScanner.addToken(AbstractJavaScanner.java:90) at org.eclipse.jdt.internal.ui.text.AbstractJavaScanner.initialize(AbstractJavaScanner.java:75) at org.eclipse.jdt.internal.ui.text.java.JavaCodeScanner.<init>(JavaCodeScanner.java:126) at org.eclipse.jdt.ui.text.JavaTextTools.<init>(JavaTextTools.java:80) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createPreviewer(JavaEditorPreferencePage.java:486) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createSyntaxPage(JavaEditorPreferencePage.java:433) at org.eclipse.jdt.internal.ui.preferences.JavaEditorPreferencePage.createContents(JavaEditorPreferencePage.java:942) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:209)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
public void widgetDefaultSelected(SelectionEvent e) {}
		};
		fBackgroundDefaultRadioButton= new Button(backgroundComposite, SWT.RADIO | SWT.LEFT);
		fBackgroundDefaultRadioButton.setText(PreferencesMessages.getString("JavaEditorPreferencePage.systemDefault")); 
		fBackgroundDefaultRadioButton.addSelectionListener(backgroundSelectionListener);
		fBackgroundCustomRadioButton= new Button(backgroundComposite, SWT.RADIO | SWT.LEFT);
		fBackgroundCustomRadioButton.setText(PreferencesMessages.getString("JavaEditorPreferencePage.custom")); 
		fBackgroundCustomRadioButton.addSelectionListener(backgroundSelectionListener);
		fBackgroundColorEditor= new ColorEditor(backgroundComposite);
		fBackgroundColorButton= fBackgroundColorEditor.getButton();
		Label label= new Label(colorComposite, SWT.LEFT);
		label.setText(PreferencesMessages.getString("JavaEditorPreferencePage.foreground")); 
		label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		Composite editorComposite= new Composite(colorComposite, SWT.NONE);
		GridLayout layout= new GridLayout();
		layout.numColumns= 2;
		layout.marginHeight= 0;
		layout.marginWidth= 0;
		editorComposite.setLayout(layout);
		GridData gd= new GridData(GridData.FILL_BOTH);
		editorComposite.setLayoutData(gd);		
		fSyntaxColorList= new List(editorComposite, SWT.SINGLE | SWT.V_SCROLL | SWT.BORDER);
		gd= new GridData(GridData.FILL_BOTH);
		gd.heightHint= convertHeightInCharsToPixels(5);
		fSyntaxColorList.setLayoutData(gd);
						
		Composite stylesComposite= new Composite(editorComposite, SWT.NONE);
		layout= new GridLayout();
		layout.marginHeight= 0;
		layout.marginWidth= 0;