Complementary Testing Approaches

Table of contents:

Summary

Testing concurrent programs for correctness can be extremely challenging because many of the possible failure modes of concurrent programs are low-probability events that are sensitive to timing, load, and other hard-to-reproduce conditions. Further, the testing infrastructure can introduce additional synchronization or timing constraints that can mask concurrency problems in the code being tested. Testing concurrent programs for performance can be equally challenging; Java programs are more difficult to test than programs written in statically compiled languages like C, because timing measurements can be affected by dynamic compilation, garbage collection, and adaptive optimization.

To have the best chance of finding latent bugs before they occur in production, combine traditional testing techniques (being careful to avoid the pitfalls discussed here) with code reviews and automated analysis tools. Each of these techniques finds problems that the others are likely to miss.


Introduction

Part I: Fundamentals

Thread Safety

Sharing Objects

Composing Objects

Building Blocks

Part II: Structuring Concurrent Applications

Task Execution

Cancellation and Shutdown

Applying Thread Pools

GUI Applications

Part III: Liveness, Performance, and Testing

Avoiding Liveness Hazards

Performance and Scalability

Testing Concurrent Programs

Part IV: Advanced Topics

Explicit Locks

Building Custom Synchronizers

Atomic Variables and Nonblocking Synchronization

The Java Memory Model



Java Concurrency in Practice
Java Concurrency in Practice
ISBN: 0321349601
EAN: 2147483647
Year: 2004
Pages: 141

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