Bug 18220 Build 20020529 Error importing from source
When I import org.eclipse.jdt.debug from source I get the following error This resource is a duplicate and was not copied to the output folder MANIFEST.MF org.eclipse.jdt.debug/src-jdimodel/META-INF STEPS 1) Select Import - Plug-ins 2) Choose "Extraxt source archives" 3) Import org.eclipse.jdt.debug
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerPreferencePage.java
StatusInfo status= new StatusInfo();
		if (checkValue(PREF_COMPLIANCE, VERSION_1_3)) {
			if (checkValue(PREF_SOURCE_COMPATIBILITY, VERSION_1_4)) {
				status.setError(JavaUIMessages.getString("CompilerPreferencePage.cpl13src14.error")); 
				return status;
			} else if (checkValue(PREF_CODEGEN_TARGET_PLATFORM, VERSION_1_4)) {
				status.setError(JavaUIMessages.getString("CompilerPreferencePage.cpl13trg14.error")); 
				return status;
			}
		}
		if (checkValue(PREF_SOURCE_COMPATIBILITY, VERSION_1_4)) {
			if (!checkValue(PREF_PB_ASSERT_AS_IDENTIFIER, ERROR)) {
				status.setError(JavaUIMessages.getString("CompilerPreferencePage.src14asrterr.error")); 
				return status;
			}
		}
		if (checkValue(PREF_SOURCE_COMPATIBILITY, VERSION_1_4)) {
			if (!checkValue(PREF_CODEGEN_TARGET_PLATFORM, VERSION_1_4)) {
				status.setError(JavaUIMessages.getString("CompilerPreferencePage.src14tgt14.error")); 
				return status;
			}
		}
		return status;
	}
	
	private IStatus validateMaxNumberProblems() {
		String number= (String) fWorkingValues.get(PREF_PB_MAX_PER_UNIT);
		StatusInfo status= new StatusInfo();
		if (number.length() == 0) {
			status.setError(JavaUIMessages.getString("CompilerPreferencePage.empty_input"));