Java Code Examples for sun.jvm.hotspot.oops.Symbol#equals()
The following examples show how to use
sun.jvm.hotspot.oops.Symbol#equals() .
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Example 1
| Source File: ArrayTypeImpl.java From TencentKona-8 with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 2
| Source File: ArrayTypeImpl.java From jdk8u60 with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 3
| Source File: ArrayTypeImpl.java From openjdk-8-source with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 4
| Source File: ArrayTypeImpl.java From openjdk-jdk8u with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 5
| Source File: ArrayTypeImpl.java From openjdk-8 with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 6
| Source File: ArrayTypeImpl.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 7
| Source File: ArrayTypeImpl.java From hottub with GNU General Public License v2.0 | 6 votes |
|
boolean isAssignableTo(ReferenceType destType) {
if (destType instanceof ArrayType) {
try {
Type destComponentType = ((ArrayType)destType).componentType();
return isComponentAssignable(destComponentType, componentType());
} catch (ClassNotLoadedException e) {
// One or both component types has not yet been
// loaded => can't assign
return false;
}
} else {
Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol();
if (destType instanceof InterfaceType) {
// Every array type implements java.io.Serializable and
// java.lang.Cloneable. fixme in JVMDI-JDI, includes only
// Cloneable but not Serializable.
return typeName.equals(vm.javaLangCloneable()) ||
typeName.equals(vm.javaIoSerializable());
} else {
// Only valid ClassType assignee is Object
return typeName.equals(vm.javaLangObject());
}
}
}
Example 8
| Source File: VirtualMachineImpl.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 9
| Source File: VirtualMachineImpl.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 10
| Source File: VirtualMachineImpl.java From openjdk-8 with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 11
| Source File: VirtualMachineImpl.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 12
| Source File: VirtualMachineImpl.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 13
| Source File: VirtualMachineImpl.java From hottub with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 14
| Source File: VirtualMachineImpl.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
private synchronized List findReferenceTypes(String signature) {
if (typesByID == null) {
return new ArrayList(0);
}
// we haven't sorted types by signatures. But we can take
// advantage of comparing symbols instead of name. In the worst
// case, we will be comparing N addresses rather than N strings
// where N being total no. of classes in allClasses() list.
// The signature could be Lx/y/z; or [....
// If it is Lx/y/z; the internal type name is x/y/x
// for array klasses internal type name is same as
// signature
String typeName = null;
if (signature.charAt(0) == 'L') {
typeName = signature.substring(1, signature.length() - 1);
} else {
typeName = signature;
}
Symbol typeNameSym = saSymbolTable().probe(typeName);
// if there is no symbol in VM, then we wouldn't have that type
if (typeNameSym == null) {
return new ArrayList(0);
}
Iterator iter = typesBySignature.iterator();
List list = new ArrayList();
while (iter.hasNext()) {
// We have cached type name as symbol in reference type
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next();
if (typeNameSym.equals(type.typeNameAsSymbol())) {
list.add(type);
}
}
return list;
}
Example 15
| Source File: VirtualMachineImpl.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
Example 16
| Source File: VirtualMachineImpl.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
Example 17
| Source File: VirtualMachineImpl.java From hottub with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
Example 18
| Source File: VirtualMachineImpl.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
Example 19
| Source File: VirtualMachineImpl.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
Example 20
| Source File: VirtualMachineImpl.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
synchronized ObjectReferenceImpl objectMirror(Oop key) {
// Handle any queue elements that are not strongly reachable
processQueue();
if (key == null) {
return null;
}
ObjectReferenceImpl object = null;
/*
* Attempt to retrieve an existing object object reference
*/
SoftObjectReference ref = (SoftObjectReference)objectsByID.get(key);
if (ref != null) {
object = ref.object();
}
/*
* If the object wasn't in the table, or it's soft reference was
* cleared, create a new instance.
*/
if (object == null) {
if (key instanceof Instance) {
// look for well-known classes
Symbol className = key.getKlass().getName();
if (Assert.ASSERTS_ENABLED) {
Assert.that(className != null, "Null class name");
}
Instance inst = (Instance) key;
if (className.equals(javaLangString)) {
object = new StringReferenceImpl(this, inst);
} else if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
} else if (className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
} else if (className.equals(javaLangClass)) {
object = new ClassObjectReferenceImpl(this, inst);
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
} else {
// not a well-known class. But the base class may be
// one of the known classes.
Klass kls = key.getKlass().getSuper();
while (kls != null) {
className = kls.getName();
// java.lang.Class and java.lang.String are final classes
if (className.equals(javaLangThread)) {
object = new ThreadReferenceImpl(this, inst);
break;
} else if(className.equals(javaLangThreadGroup)) {
object = new ThreadGroupReferenceImpl(this, inst);
break;
} else if (className.equals(javaLangClassLoader)) {
object = new ClassLoaderReferenceImpl(this, inst);
break;
}
kls = kls.getSuper();
}
if (object == null) {
// create generic object reference
object = new ObjectReferenceImpl(this, inst);
}
}
} else if (key instanceof TypeArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else if (key instanceof ObjArray) {
object = new ArrayReferenceImpl(this, (Array) key);
} else {
throw new RuntimeException("unexpected object type " + key);
}
ref = new SoftObjectReference(key, object, referenceQueue);
/*
* If there was no previous entry in the table, we add one here
* If the previous entry was cleared, we replace it here.
*/
objectsByID.put(key, ref);
} else {
ref.incrementCount();
}
return object;
}
