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Get 'embefore they get you

Václav Pech

Software Developer, Technology EvangelistJetBrains, s.r.o.

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Agenda

Static Code Analysis

Duplicate Detection

Stacktrace Analysis

Dataflow Analysis

Dependency Analysis

DSM

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Static Code Analysis

Searches AST for bug patterns

On demand

On the fly

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Abstract Syntax Tree

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A quick peek into the sources

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Advanced capabilities

Quick fixesProfilesSuppressing false positivesSpell-checkerCommand-line and CI integration

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There’s more than Java out there

JavaScriptCSS, HTML, XMLGWT, StrutsEE, ME

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722

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Create your own bug patterns

Define

an AST sub-tree to search for

an AST sub-tree to replace it with

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Helper annotations - JSR 305 & 308

@Nullable, @NotNull, @Nls, @NonNls

@PropertyKey, @Pattern, @Language

@ThreadSafe, @GuardedBy

@Immutable

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@Pattern

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Language injection

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Stacktrace Analysis

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Dataflow Analysis

From / To here

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Duplicate detection

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Dependency Structure Matrix

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Summary

CustomizeUse permanentlyRun continuously

So that you can sleep better!

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Questions