Identical catch branches use up vertical space and increase the complexity of code without adding functionality. It’s better style to collapse identical branches into a single multi-catch branch.

try {
    // do something
} catch (IllegalArgumentException e) {
    throw e;
} catch (IllegalStateException e) { // Can be collapsed into the previous block
    throw e;
}

try {
    // do something
} catch (IllegalArgumentException | IllegalStateException e) { // This is better
    throw e;
}