Package org.jacoco.core.runtime
Class InjectedClassRuntime
- java.lang.Object
-
- org.jacoco.core.runtime.AbstractRuntime
-
- org.jacoco.core.runtime.InjectedClassRuntime
-
- All Implemented Interfaces:
IExecutionDataAccessorGenerator
,IRuntime
public class InjectedClassRuntime extends AbstractRuntime
IRuntime
which defines a new class usingjava.lang.invoke.MethodHandles.Lookup.defineClass
introduced in Java 9. Module where class will be defined must be opened to at least module of this class.
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
InjectedClassRuntime.Lookup
Provides access to classesjava.lang.invoke.MethodHandles
andjava.lang.invoke.MethodHandles.Lookup
introduced in Java 8.
-
Field Summary
Fields Modifier and Type Field Description private static java.lang.String
FIELD_NAME
private static java.lang.String
FIELD_TYPE
private java.lang.String
injectedClassName
private java.lang.Class<?>
locator
-
Fields inherited from class org.jacoco.core.runtime.AbstractRuntime
data
-
-
Constructor Summary
Constructors Constructor Description InjectedClassRuntime(java.lang.Class<?> locator, java.lang.String simpleClassName)
Creates a new runtime which will define a class to the same class loader and in the same package and protection domain as given class.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static byte[]
createClass(java.lang.String name)
int
generateDataAccessor(long classid, java.lang.String classname, int probecount, org.objectweb.asm.MethodVisitor mv)
This method generates the byte code required to obtain the coverage data structure for the class with the given id.void
shutdown()
Allows the coverage runtime to cleanup internals.void
startup(RuntimeData data)
Subclasses must call this method when overwriting it.-
Methods inherited from class org.jacoco.core.runtime.AbstractRuntime
createRandomId
-
-
-
-
Field Detail
-
FIELD_NAME
private static final java.lang.String FIELD_NAME
- See Also:
- Constant Field Values
-
FIELD_TYPE
private static final java.lang.String FIELD_TYPE
- See Also:
- Constant Field Values
-
locator
private final java.lang.Class<?> locator
-
injectedClassName
private final java.lang.String injectedClassName
-
-
Constructor Detail
-
InjectedClassRuntime
public InjectedClassRuntime(java.lang.Class<?> locator, java.lang.String simpleClassName)
Creates a new runtime which will define a class to the same class loader and in the same package and protection domain as given class.- Parameters:
locator
- class to identify the target class loader and packagesimpleClassName
- simple name of the class to be defined
-
-
Method Detail
-
startup
public void startup(RuntimeData data) throws java.lang.Exception
Description copied from class:AbstractRuntime
Subclasses must call this method when overwriting it.- Specified by:
startup
in interfaceIRuntime
- Overrides:
startup
in classAbstractRuntime
- Parameters:
data
- the execution data for this runtime- Throws:
java.lang.Exception
- any internal problem during startup
-
shutdown
public void shutdown()
Description copied from interface:IRuntime
Allows the coverage runtime to cleanup internals. This class should be called when classes instrumented for this runtime are not used any more.
-
generateDataAccessor
public int generateDataAccessor(long classid, java.lang.String classname, int probecount, org.objectweb.asm.MethodVisitor mv)
Description copied from interface:IExecutionDataAccessorGenerator
This method generates the byte code required to obtain the coverage data structure for the class with the given id. Typically the instrumentation process will embed this code into a method that is called on class initialization. This method can be called at any time even outside the target VM. The generated code must push aboolean[]
instance to the operand stack. Except this result object the generated code must not make any assumptions about the structure of the embedding method or class. The generated code must not use or allocate local variables.- Parameters:
classid
- identifier of the classclassname
- VM class nameprobecount
- probe count for this classmv
- code output- Returns:
- additional stack size required by the implementation, including the instance pushed to the stack
-
createClass
private static byte[] createClass(java.lang.String name)
-
-