Class TypeCachingBytecodeGenerator

java.lang.Object

java.lang.ref.ReferenceQueue<ClassLoader>

org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator

All Implemented Interfaces:

BytecodeGenerator

class TypeCachingBytecodeGenerator
extends ReferenceQueue<ClassLoader>
implements BytecodeGenerator

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TypeCachingBytecodeGenerator.MockitoMockKey
private static final class	TypeCachingBytecodeGenerator.TypeCachingLock

Field Summary

Fields

Modifier and Type	Field	Description
private final BytecodeGenerator	bytecodeGenerator
private static final int	CACHE_LOCK_MASK	The mask to use to mask out the TypeCachingBytecodeGenerator.MockitoMockKey.hashCode() to find the cacheLocks.
private static final int	CACHE_LOCK_SIZE	The size of the cacheLocks.
private final TypeCachingBytecodeGenerator.TypeCachingLock[]	cacheLocks	This array contains TypeCachingBytecodeGenerator.TypeCachingLock instances, which are used as java monitor locks for TypeCache.findOrInsert(ClassLoader, Object, Callable, Object).
private final ReadWriteLock	lock
private final net.bytebuddy.TypeCache<TypeCachingBytecodeGenerator.MockitoMockKey>	typeCache

Constructor Summary

Constructors

Constructor	Description
TypeCachingBytecodeGenerator(BytecodeGenerator bytecodeGenerator, boolean weak)

Method Summary

Modifier and Type	Method	Description
void	clearAllCaches()
private TypeCachingBytecodeGenerator.TypeCachingLock	getCacheLockForKey(TypeCachingBytecodeGenerator.MockitoMockKey key)	Returns a TypeCachingBytecodeGenerator.TypeCachingLock, which locks the TypeCache.findOrInsert(ClassLoader, Object, Callable, Object).
<T> Class<T>	mockClass(MockFeatures<T> params)
void	mockClassConstruction(Class<?> type)
void	mockClassStatic(Class<?> type)

Methods inherited from class ReferenceQueue

poll, remove, remove

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CACHE_LOCK_SIZE

private static final int CACHE_LOCK_SIZE

The size of the cacheLocks.

Caution: This must match the CACHE_LOCK_MASK.

See Also:

• Constant Field Values

CACHE_LOCK_MASK

private static final int CACHE_LOCK_MASK

The mask to use to mask out the TypeCachingBytecodeGenerator.MockitoMockKey.hashCode() to find the cacheLocks.

Caution: this must match the bits of the CACHE_LOCK_SIZE.

See Also:

• Constant Field Values

bytecodeGenerator

private final BytecodeGenerator bytecodeGenerator

typeCache

private final net.bytebuddy.TypeCache<TypeCachingBytecodeGenerator.MockitoMockKey> typeCache

lock

private final ReadWriteLock lock

cacheLocks

private final TypeCachingBytecodeGenerator.TypeCachingLock[] cacheLocks

This array contains TypeCachingBytecodeGenerator.TypeCachingLock instances, which are used as java monitor locks for TypeCache.findOrInsert(ClassLoader, Object, Callable, Object). The locks spread the lock to acquire over multiple locks instead of using a single lock BOOTSTRAP_LOCK for all TypeCachingBytecodeGenerator.MockitoMockKey.

Note: We can't simply use the mockedType class lock as a lock, because the TypeCachingBytecodeGenerator.MockitoMockKey, will be the same for different mockTypes + interfaces.

#3035: Excessive locking in TypeCachingBytecodeGenerator#BOOTSTRAP_LOCK

Constructor Details

TypeCachingBytecodeGenerator

public TypeCachingBytecodeGenerator(BytecodeGenerator bytecodeGenerator,
 boolean weak)

Method Details

mockClass

public <T> Class<T> mockClass(MockFeatures<T> params)

Specified by:

mockClass in interface BytecodeGenerator

getCacheLockForKey

private TypeCachingBytecodeGenerator.TypeCachingLock getCacheLockForKey(TypeCachingBytecodeGenerator.MockitoMockKey key)

Returns a TypeCachingBytecodeGenerator.TypeCachingLock, which locks the TypeCache.findOrInsert(ClassLoader, Object, Callable, Object).

Parameters:

key - the key to lock

Returns:

the TypeCachingBytecodeGenerator.TypeCachingLock to use to lock the TypeCache

mockClassStatic

public void mockClassStatic(Class<?> type)

Specified by:

mockClassStatic in interface BytecodeGenerator

mockClassConstruction

public void mockClassConstruction(Class<?> type)

Specified by:

mockClassConstruction in interface BytecodeGenerator

clearAllCaches

public void clearAllCaches()

Specified by:

clearAllCaches in interface BytecodeGenerator