The answer is the exception from the second resource declared (resource2) is propagated to the caller, with the exception from the first resource (resource1) added as a suppressed exception. This occurs because try-with-resources closes resources in the reverse order of their declaration, so resource2 is closed first, and if it throws, that exception becomes the primary one; resource1 is closed next, and its exception is suppressed. On the Oracle Certified Professional Java SE 17 Developer 1Z0-829 exam, this tests your understanding of suppressed exceptions and the close order, a common trap where developers mistakenly think the first resource’s exception takes precedence. Remember the mnemonic “last opened, first closed, first thrown” — the resource declared last is closed first, and its exception is the one the caller sees.
1Z0-829 Handling Exceptions Practice Question
This 1Z0-829 practice question tests your understanding of handling exceptions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Consider try-with-resources where resource1 is opened first, then resource2. During closing, both throw exceptions. Which exception is propagated to the caller?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The exception from resource2 (closed first) with resource1's exception as suppressed.
In try-with-resources, resources are closed in the reverse order of their declaration. Resource2 (declared second) is closed first, and resource1 (declared first) is closed last. If both throw exceptions during closing, the exception from the first resource closed (resource2) is propagated to the caller, and the exception from the second resource closed (resource1) is added as a suppressed exception. This matches option B.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The exception from resource1 (closed last) with resource2's exception as suppressed.
Why it's wrong here
First exception is from resource2, not resource1.
✓
The exception from resource2 (closed first) with resource1's exception as suppressed.
Why this is correct
Resources closed in reverse order; first exception encountered becomes primary.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Only the exception from the resource declared first is propagated.
Why it's wrong here
Order of declaration does not determine propagation.
✗
Both exceptions are wrapped in a new exception.
Why it's wrong here
Not wrapped; one is primary, the other suppressed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often mistakenly think the exception from the first declared resource is propagated, when in fact the exception from the resource closed first (the last declared) is propagated, and the other is suppressed.
Detailed technical explanation
How to think about this question
Under the hood, the try-with-resources statement generates bytecode that calls close() on each resource in reverse declaration order within nested finally blocks. If a close() throws an exception, it is caught and added as a suppressed exception to the primary exception (the one from the first close() that failed), using Throwable.addSuppressed(). This design ensures that the caller receives the most relevant exception (the first failure during closing) while preserving all other exceptions for debugging. In real-world scenarios, such as closing a database connection and a statement, this behavior prevents the loss of critical error information.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 1Z0-829 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Handling Exceptions — This question tests Handling Exceptions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The exception from resource2 (closed first) with resource1's exception as suppressed. — In try-with-resources, resources are closed in the reverse order of their declaration. Resource2 (declared second) is closed first, and resource1 (declared first) is closed last. If both throw exceptions during closing, the exception from the first resource closed (resource2) is propagated to the caller, and the exception from the second resource closed (resource1) is added as a suppressed exception. This matches option B.
What should I do if I get this 1Z0-829 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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