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  • package opalj

    OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode.

    OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode. OPAL is designed with performance, scalability and adaptability in mind.

    Its main components are:

    • a library (Common) which provides generally useful data-structures and algorithms for static analyses.
    • a framework for implementing lattice based static analyses (Static Analysis Infrastructure)
    • a framework for parsing Java bytecode (Bytecode Infrastructure) that can be used to create arbitrary representations.
    • a library to create a one-to-one in-memory representation of Java bytecode (Bytecode Disassembler).
    • a library to create a representation of Java bytecode that facilitates writing simple static analyses (Bytecode Representation - org.opalj.br).
    • a scalable, easily customizable framework for the abstract interpretation of Java bytecode (Abstract Interpretation Framework - org.opalj.ai).
    • a library to extract dependencies between code elements and to facilitate checking architecture definitions.
    • a library for the lightweight manipulation and creation of Java bytecode (Bytecode Assembler).

    General Design Decisions

    Thread Safety

    Unless explicitly noted, OPAL is thread safe. I.e., the classes defined by OPAL can be considered to be thread safe unless otherwise stated. (For example, it is possible to read and process class files concurrently without explicit synchronization on the client side.)

    No null Values

    Unless explicitly noted, OPAL does not null values I.e., fields that are accessible will never contain null values and methods will never return null. If a method accepts null as a value for a parameter or returns a null value it is always explicitly documented. In general, the behavior of methods that are passed null values is undefined unless explicitly documented.

    No Typecasts for Collections

    For efficiency reasons, OPAL sometimes uses mutable data-structures internally. After construction time, these data-structures are generally represented using their generic interfaces (e.g., scala.collection.{Set,Map}). However, a downcast (e.g., to add/remove elements) is always forbidden as it would effectively prevent thread-safety.

    Assertions

    OPAL makes heavy use of Scala's Assertion Facility to facilitate writing correct code. Hence, for production builds (after thorough testing(!)) it is highly recommend to build OPAL again using -Xdisable-assertions.

    Definition Classes
    org
  • package issues

    Defines implicit conversions to wrap some types of analyses such that they generate results of type org.opalj.br.analyses.ReportableAnalysisResult.

    Defines implicit conversions to wrap some types of analyses such that they generate results of type org.opalj.br.analyses.ReportableAnalysisResult.

    Definition Classes
    opalj
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o

org.opalj.issues

IssueKind

object IssueKind

An issue kind describes how an issue manifests itself in the source code.

Source
IssueKind.scala
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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final val AllKinds: Set[String]
  5. final val ConstantComputation: String("constant computation")

    A computation that always returns the same value.

  6. final val DeadPath: String("dead path")

    A path in a program that will never be executed.

  7. final val DubiousMethodCall: String("dubious method call")

    "a method is called that may have unexpected/unwanted behavior in the given context"

  8. final val DubiousMethodDefinition: String("dubious method definition")
  9. final val InconsistentSynchronization: String("inconsistent synchronization")
  10. final val JavaCollectionAPIMisusage: String("Java collection API Misusage")

    The Java Collection API is not used in the correct way/as intended.

  11. final val MethodMissing: String("method missing")

    A method that should be implemented is missing.

  12. final val MissingStaticModifier: String("static modifier missing")
  13. final val ThrowsException: String("throws exception")

    A statement, which is not a "throw statement", which always throws an exception.

  14. final val UnguardedUse: String("unguarded use")

    Use of a local variable that is not guarded though usage are also guarded.

    Use of a local variable that is not guarded though usage are also guarded.

    Example:

    1. def m(o : Object){
    // guarded use
    if (o ne null) {
        println(o.toString)
    }

    // unguarded use
    o.hashCode
}
  15. final val UnusedField: String("unused field")

    The field is not used and cannot be used by 3rd part extensions.

  16. final val UnusedLocalVariable: String("unused local variable")
  17. final val UnusedMethod: String("unused method")

    The method is not used and cannot be used by 3rd part extensions.

  18. final val UselessComputation: String("useless computation")

    Something is currently unused and cannot be used in the future.

    Something is currently unused and cannot be used in the future.

    Useless is in particular related to the implementation of methods.

  19. final def asInstanceOf[T0]: T0
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  20. def clone(): AnyRef
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  21. final def eq(arg0: AnyRef): Boolean
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  22. def equals(arg0: AnyRef): Boolean
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  23. final def getClass(): Class[_ <: AnyRef]
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  24. def hashCode(): Int
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  25. final def isInstanceOf[T0]: Boolean
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  26. final def ne(arg0: AnyRef): Boolean
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  27. final def notify(): Unit
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  28. final def notifyAll(): Unit
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  29. final def synchronized[T0](arg0: => T0): T0
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  30. def toString(): String
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  31. final def wait(arg0: Long, arg1: Int): Unit
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    @throws(classOf[java.lang.InterruptedException])
  32. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException])
  33. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])

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  1. def finalize(): Unit
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    Deprecated

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