Program: 151445
Project: 151445
Buggy source:
@Override public void initializeUI(UIBuilder builder) throws Exception {
  setupEntities(builder.getUIContext());
  setupRelationshipType();
  final Project project=getSelectedProject(builder);
  final String[] types={"String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str"};
  type.setCompleter(new UICompleter<String>(){
    @Override public Iterable<String> getCompletionProposals(    final UIContext context,    final InputComponent<?,String> input,    final String value){
      final List<String> options=new ArrayList<>();
      for (      String type : types) {
        if (Strings.isNullOrEmpty(value) || type.startsWith(value)) {
          options.add(type);
        }
      }
      if (project != null) {
        for (        JavaResource resource : getProjectEntities(project)) {
          try {
            JavaSource<?> javaSource=resource.getJavaSource();
            String qualifiedName=javaSource.getQualifiedName();
            if (Strings.isNullOrEmpty(value) || qualifiedName.startsWith(value)) {
              options.add(qualifiedName);
            }
          }
 catch (          FileNotFoundException ignored) {
          }
        }
      }
      return options;
    }
  }
);
  lob.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return relationshipType.getValue() == RelationshipType.BASIC;
    }
  }
);
  type.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return !lob.getValue();
    }
  }
);
  length.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return !lob.getValue();
    }
  }
);
  temporalType.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      String typeValue=type.getValue();
      return Date.class.getName().equals(typeValue) || Calendar.class.getName().equals(typeValue);
    }
  }
);
  builder.add(targetEntity).add(named).add(type).add(temporalType).add(length).add(relationshipType).add(lob);
}

Fixed version (ground truth):
@Override public void initializeUI(UIBuilder builder) throws Exception {
  setupEntities(builder.getUIContext());
  setupRelationshipType();
  final Project project=getSelectedProject(builder);
  final List<String> types=Arrays.asList("String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str");
  type.setCompleter(new UICompleter<String>(){
    @Override public Iterable<String> getCompletionProposals(    final UIContext context,    final InputComponent<?,String> input,    final String value){
      final List<String> options=new ArrayList<>();
      for (      String type : types) {
        if (Strings.isNullOrEmpty(value) || type.startsWith(value)) {
          options.add(type);
        }
      }
      if (project != null) {
        for (        JavaResource resource : getProjectEntities(project)) {
          try {
            JavaSource<?> javaSource=resource.getJavaSource();
            String qualifiedName=javaSource.getQualifiedName();
            if (Strings.isNullOrEmpty(value) || qualifiedName.startsWith(value)) {
              options.add(qualifiedName);
            }
          }
 catch (          FileNotFoundException ignored) {
          }
        }
      }
      return options;
    }
  }
);
  relationshipType.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return !types.contains(type.getValue());
    }
  }
);
  lob.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return relationshipType.getValue() == RelationshipType.BASIC;
    }
  }
);
  type.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return !lob.getValue();
    }
  }
);
  length.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      return !lob.getValue();
    }
  }
);
  temporalType.setEnabled(new Callable<Boolean>(){
    @Override public Boolean call() throws Exception {
      String typeValue=type.getValue();
      return Date.class.getName().equals(typeValue) || Calendar.class.getName().equals(typeValue);
    }
  }
);
  builder.add(targetEntity).add(named).add(type).add(temporalType).add(length).add(relationshipType).add(lob);
}