Java array nested equals

Java
int[][] a = new int[][] {{1}, {2}, {3, 4}};
int[][] b = new int[][] {{1}, {2}, {3, 4}};
int[][] c = new int[][] {{1}, {2}, {3}, {4}};
java.util.Arrays.deepEquals(a, b) // true
java.util.Arrays.deepEquals(b, c) // false
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