Bug 65399 changing a "Run a Single Test" configuration into "Run All Tests in..." does not run all tests [JUnit]
First I ran a single test (by selecting the test method and then choosing Run/JUnit Test from its context menu actions). Then I decided to run all tests in the package instead. So inside the Launching Configurations dialog I chose the option Run All Tests in selected project, package or folder and selected the package which contained the test class I had previously selected. Surprisingly it did not run all tests in the package I chose in the previous dialog, rather it ran only the same test from which I created that initial launching configuration. This is a bug which users are very likely to encounter: initially they will want to run a single test and then change their mind and try to run all tests within the corresponding package. 3.0 RC1 Build id: 200405290105
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/launcher/JUnitMainTab.java
fSearchButton = new Button(comp, SWT.PUSH);
		fSearchButton.setEnabled(fProjText.getText().length() > 0);		
		fSearchButton.setText(JUnitMessages.getString("JUnitMainTab.label.search")); 
		fSearchButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent evt) {
				handleSearchButtonSelected();
			}
		});
		setButtonGridData(fSearchButton);
		
		new Label(comp, SWT.NONE);
		
		fTestMethodLabel= new Label(comp, SWT.NONE);
		fTestMethodLabel.setText("");  
		gd= new GridData();
		gd.horizontalSpan = 2;
		fTestMethodLabel.setLayoutData(gd);
		
	}
	protected void createTestContainerSelectionGroup(Composite comp) {
		fTestContainerRadioButton= new Button(comp, SWT.RADIO);
		fTestContainerRadioButton.setText(JUnitMessages.getString("JUnitMainTab.label.containerTest")); 
		GridData gd = new GridData();
		gd.horizontalSpan = 3;
		fTestContainerRadioButton.setLayoutData(gd);
		fTestContainerRadioButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				if (fTestContainerRadioButton.getSelection())
					testModeChanged();
			}