There a few places in javax.swing.text where a new array is created and then immediately filled with default values.
1. javax.swing.text.ParagraphView.Row#layoutMajorAxis

    int[] spaceMap = new int[rowEndOffset - rowStartOffset];
    Arrays.fill(spaceMap, 0);

2. javax.swing.text.html.TableView.ColumnIterator#updatePercentagesAndAdjustmentWeights

    adjustmentWeights = new int[columnRequirements.length];
    for (int i = 0; i < columnRequirements.length; i++) {
        adjustmentWeights[i] = 0;
    }

It's redundant. Java guarantees that all elements of array have default values after array creation.