2362N/A * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * The type of an object in a target VM. ReferenceType encompasses 4008N/A * classes, interfaces, and array types as defined in 4008N/A * <cite>The Java™ Language Specification</cite>. 0N/A * All ReferenceType objects belong to one of the following 0N/A * {@link ClassType} for classes, 0N/A * {@link InterfaceType} for interfaces, and 0N/A * {@link ArrayType} for arrays. 0N/A * Note that primitive classes (for example, the 0N/A * {@link ClassObjectReference#reflectedType() reflected type} of 0N/A * {@link java.lang.Integer#TYPE Integer.TYPE}) 0N/A * are represented as ClassType. 0N/A * The VM creates Class objects for all three, so from the VM perspective, 0N/A * each ReferenceType maps to a distinct Class object. 0N/A * ReferenceTypes can 0N/A * be obtained by querying a particular {@link ObjectReference} for its 0N/A * type or by getting a list of all reference types from the 0N/A * {@link VirtualMachine}. 0N/A * ReferenceType provides access to static type information such as 0N/A * methods and fields and provides access to dynamic type 0N/A * information such as the corresponding Class object and the classloader. 0N/A * Any method on <code>ReferenceType</code> which directly or 0N/A * indirectly takes <code>ReferenceType</code> as an parameter may throw 0N/A * {@link com.sun.jdi.VMDisconnectedException} if the target VM is 0N/A * disconnected and the {@link com.sun.jdi.event.VMDisconnectEvent} has been or is 0N/A * available to be read from the {@link com.sun.jdi.event.EventQueue}. 0N/A * Any method on <code>ReferenceType</code> which directly or 0N/A * indirectly takes <code>ReferenceType</code> as an parameter may throw 0N/A * {@link com.sun.jdi.VMOutOfMemoryException} if the target VM has run out of memory. 0N/A * Any method on <code>ReferenceType</code> or which directly or indirectly takes 0N/A * <code>ReferenceType</code> as parameter may throw 0N/A * {@link com.sun.jdi.ObjectCollectedException} if the mirrored type has been unloaded. 0N/A * @see ObjectReference 0N/A * @see ObjectReference#referenceType 0N/A * @see VirtualMachine 0N/A * @see VirtualMachine#allClasses 0N/A * @author Robert Field 0N/A * @author Gordon Hirsch 0N/A * @author James McIlree 0N/A * Gets the fully qualified name of this type. The returned name 0N/A * is formatted as it might appear in a Java programming langauge 0N/A * declaration for objects of this type. 0N/A * For primitive classes 0N/A * the returned name is the name of the corresponding primitive 0N/A * type; for example, "int" is returned as the name of the class 0N/A * represented by {@link java.lang.Integer#TYPE Integer.TYPE}. 0N/A * @return a string containing the type name. 0N/A * Gets the generic signature for this type if there is one. 0N/A * Generic signatures are described in the 4008N/A * <cite>The Java™ Virtual Machine Specification</cite>. 0N/A * @return a string containing the generic signature, or <code>null</code> 0N/A * if there is no generic signature. 0N/A * Gets the classloader object which loaded the class corresponding 0N/A * @return a {@link ClassLoaderReference} which mirrors the classloader, 0N/A * or <code>null</code> if the class was loaded through the bootstrap class 0N/A * Gets an identifying name for the source corresponding to the 0N/A * declaration of this type. Interpretation of this string is 0N/A * the responsibility of the source repository mechanism. 0N/A * The returned name is dependent on VM's default stratum 0N/A * ({@link VirtualMachine#getDefaultStratum()}). 0N/A * In the reference implementation, when using the base stratum, 0N/A * the returned string is the 0N/A * unqualified name of the source file containing the declaration 0N/A * of this type. In other strata the returned source name is 0N/A * the first source name for that stratum. Since other languages 0N/A * may have more than one source name for a reference type, 0N/A * the use of {@link Location#sourceName()} or 0N/A * {@link #sourceNames(String)} is preferred. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * AbsentInformationException is always thrown. 0N/A * @return the string source file name 0N/A * @throws AbsentInformationException if the source name is not 0N/A * Gets the identifying names for all the source corresponding to the 0N/A * declaration of this type. Interpretation of these names is 0N/A * the responsibility of the source repository mechanism. 0N/A * The returned names are for the specified stratum 0N/A * (see {@link Location} for a description of strata). 0N/A * In the reference implementation, when using the Java 0N/A * programming language stratum, 0N/A * the returned List contains one element: a String which is the 0N/A * unqualified name of the source file containing the declaration 0N/A * of this type. In other strata the returned source names are 0N/A * all the source names defined for that stratum. 0N/A * @param stratum The stratum to retrieve information from 0N/A * or <code>null</code> for the declaring type's 0N/A * @return a List of String objects each representing a source name 0N/A * @throws AbsentInformationException if the source names are not 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * AbsentInformationException is always thrown. 0N/A * Gets the paths to the source corresponding to the 0N/A * declaration of this type. Interpretation of these paths is 0N/A * the responsibility of the source repository mechanism. 0N/A * The returned paths are for the specified stratum 0N/A * (see {@link Location} for a description of strata). 0N/A * In the reference implementation, for strata which 0N/A * do not explicitly specify source path (the Java 0N/A * programming language stratum never does), the returned 0N/A * strings are the {@link #sourceNames(String)} prefixed by 0N/A * the package name of this ReferenceType 0N/A * converted to a platform dependent path. 0N/A * For example, on a Windows platform, 0N/A * <CODE>java.lang.Thread</CODE> 0N/A * would return a List containing one element: 0N/A * @param stratum The stratum to retrieve information from 0N/A * or <code>null</code> for the declaring type's 0N/A * @return a List of String objects each representing a source path 0N/A * @throws AbsentInformationException if the source names are not 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * AbsentInformationException is always thrown. 0N/A * Get the source debug extension of this type. 0N/A * Not all target virtual machines support this operation. 0N/A * {@link VirtualMachine#canGetSourceDebugExtension() canGetSourceDebugExtension()} 0N/A * to determine if the operation is supported. 0N/A * @return as a string the source debug extension attribute 0N/A * @throws AbsentInformationException if the extension is not 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetSourceDebugExtension() canGetSourceDebugExtension()}, 0N/A * Determines if this type was declared static. Only nested types, 0N/A * can be declared static, so <code>false</code> is returned 0N/A * for any package-level type, array type, or primitive class. 0N/A * @return <code>true</code> if this type is static; false otherwise. 0N/A * Determines if this type was declared abstract. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is undefined. 0N/A * @return <code>true</code> if this type is abstract; false otherwise. 0N/A * Determines if this type was declared final. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is always true. 0N/A * @return <code>true</code> if this type is final; false otherwise. 0N/A * Determines if this type has been prepared. See the JVM 0N/A * specification for a definition of class preparation. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is undefined. 0N/A * @return <code>true</code> if this type is prepared; false otherwise. 0N/A * Determines if this type has been verified. See the JVM 0N/A * specification for a definition of class verification. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is undefined. 0N/A * @return <code>true</code> if this type is verified; false otherwise. 0N/A * Determines if this type has been initialized. See the JVM 0N/A * specification for a definition of class verification. 0N/A * For {@link InterfaceType}, this method always returns the 0N/A * same value as {@link #isPrepared()}. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is undefined. 0N/A * @return <code>true</code> if this type is initialized; false otherwise. 0N/A * Determines if initialization failed for this class. See the JVM 0N/A * specification for details on class initialization. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the return value is undefined. 0N/A * @return <code>true</code> if initialization was attempted and 0N/A * failed; false otherwise. 0N/A * Returns a list containing each {@link Field} declared in this type. 0N/A * Inherited fields are not included. Any synthetic fields created 0N/A * by the compiler are included in the list. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a list {@link Field} objects; the list has length 0 0N/A * if no fields exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a list containing each unhidden and unambiguous {@link Field} 0N/A * Each field that can be accessed from the class 0N/A * or its instances with its simple name is included. Fields that 0N/A * are ambiguously multiply inherited or fields that are hidden by 0N/A * fields with the same name in a more recently inherited class 0N/A * cannot be accessed 0N/A * by their simple names and are not included in the returned 0N/A * list. All other inherited fields are included. 0N/A * See JLS section 8.3 for details. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a List of {@link Field} objects; the list has length 0N/A * 0 if no visible fields exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a list containing each {@link Field} declared in this type, 0N/A * and its superclasses, implemented interfaces, and/or superinterfaces. 0N/A * All declared and inherited 0N/A * fields are included, regardless of whether they are hidden or 0N/A * multiply inherited. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a List of {@link Field} objects; the list has length 0N/A * 0 if no fields exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Finds the visible {@link Field} with the given 0N/A * non-ambiguous name. This method follows the 0N/A * inheritance rules specified in the JLS (8.3.3) to determine 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * value is always null. 0N/A * @param fieldName a String containing the name of desired field. 0N/A * @return a {@link Field} object which mirrors the found field, or 0N/A * null if there is no field with the given name or if the given 0N/A * name is ambiguous. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a list containing each {@link Method} declared 0N/A * directly in this type. 0N/A * Inherited methods are not included. Constructors, 0N/A * the initialization method if any, and any synthetic methods created 0N/A * by the compiler are included in the list. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a list {@link Method} objects; the list has length 0 0N/A * if no methods exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a list containing each {@link Method} 0N/A * declared or inherited by this type. Methods from superclasses 0N/A * or superinterfaces that that have been hidden or overridden 0N/A * Note that despite this exclusion, multiple inherited methods 0N/A * with the same signature can be present in the returned list, but 0N/A * at most one can be a member of a {@link ClassType}. 0N/A * See JLS section 8.4.6 for details. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a List of {@link Method} objects; the list has length 0N/A * 0 if no visible methods exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a list containing each {@link Method} declared in this type, 0N/A * and its superclasses, implemented interfaces, and/or superinterfaces. 0N/A * All declared and inherited 0N/A * methods are included, regardless of whether they are hidden or 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a List of {@link Method} objects; the list has length 0N/A * 0 if no methods exist. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a List containing each visible {@link Method} that 0N/A * has the given name. This is most commonly used to 0N/A * find overloaded methods. 0N/A * Overridden and hidden methods are not included. 0N/A * See JLS (8.4.6) for details. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @param name the name of the method to find. 0N/A * @return a List of {@link Method} objects that match the given 0N/A * name; the list has length 0 if no matching methods are found. 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a List containing each visible {@link Method} that 0N/A * has the given name and signature. 0N/A * The signature string is the 0N/A * JNI signature for the target method: 0N/A * <li><code>()V</code> 0N/A * <li><code>(IIII)Z</code> 0N/A * This method follows the inheritance rules specified 0N/A * in the JLS (8.4.6) to determine visibility. 0N/A * At most one method in the list is a concrete method and a 0N/A * component of {@link ClassType}; any other methods in the list 0N/A * are abstract. Use {@link ClassType#concreteMethodByName} to 0N/A * retrieve only the matching concrete method. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @param name the name of the method to find. 0N/A * @param signature the signature of the method to find 0N/A * @return a List of {@link Method} objects that match the given 0N/A * name and signature; the list has length 0 if no matching methods 0N/A * @throws ClassNotPreparedException if this class not yet been 0N/A * Returns a List containing {@link ReferenceType} objects that are 0N/A * declared within this type and are currently loaded into the Virtual 0N/A * Machine. Both static nested types and non-static nested 0N/A * types (that is, inner types) are included. Local inner types 0N/A * (declared within a code block somewhere in this reference type) are 0N/A * also included in the returned list. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the returned 0N/A * list is always empty. 0N/A * @return a List of nested {@link ReferenceType} objects; the list 0N/A * has 0 length if there are no nested types. 0N/A * Gets the {@link Value} of a given static {@link Field} in this type. 0N/A * The Field must be valid for this type; 0N/A * that is, it must be declared in this type, a superclass, a 0N/A * superinterface, or an implemented interface. 0N/A * @param field the field containing the requested value 0N/A * @return the {@link Value} of the instance field. 0N/A * @throws java.lang.IllegalArgumentException if the field is not valid for 0N/A * this object's class. 0N/A * Returns a map containing the {@link Value} of each 0N/A * static {@link Field} in the given list. 0N/A * The Fields must be valid for this type; 0N/A * that is, they must be declared in this type, a superclass, a 0N/A * superinterface, or an implemented interface. 0N/A * @param fields a list of {@link Field} objects containing the 0N/A * @return a Map of the requested {@link Field} objects with 0N/A * their {@link Value}. 0N/A * @throws java.lang.IllegalArgumentException if any field is not valid for 0N/A * this object's class. 0N/A * @throws VMMismatchException if a {@link Mirror} argument and this mirror 0N/A * do not belong to the same {@link VirtualMachine}. 0N/A * Returns the class object that corresponds to this type in the 0N/A * target VM. The VM creates class objects for every kind of 0N/A * ReferenceType: classes, interfaces, and array types. 0N/A * @return the {@link ClassObjectReference} for this reference type 0N/A * Returns a list containing a {@link Location} object 0N/A * for each executable source line in this reference type. 0N/A * This method is equivalent to 0N/A * <code>allLineLocations(vm.getDefaultStratum(),null)</code> - 0N/A * see {@link #allLineLocations(String,String)} 0N/A * for more information. 0N/A * @throws AbsentInformationException if there is no line 0N/A * number information for this class and there are non-native, 0N/A * non-abstract executable members of this class. 0N/A * @throws ClassNotPreparedException if this class not yet 0N/A * Returns a list containing a {@link Location} object 0N/A * for each executable source line in this reference type. 0N/A * Each location maps a source line to a range of code 0N/A * The beginning of the range can be determined through 0N/A * {@link Location#codeIndex}. The returned list may contain 0N/A * multiple locations for a particular line number, if the 0N/A * compiler and/or VM has mapped that line to two or more 0N/A * disjoint code index ranges. Note that it is possible for 0N/A * the same source line to represent different code index 0N/A * ranges in <i>different</i> methods. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the 0N/A * returned list is always empty. For interfaces ({@link 0N/A * InterfaceType}), the returned list will be non-empty only 0N/A * if the interface has executable code in its class 0N/A * Returned list is for the specified <i>stratum</i> 0N/A * (see {@link Location} for a description of strata). 0N/A * @param stratum The stratum to retrieve information from 0N/A * or <code>null</code> for the {@link #defaultStratum()}. 0N/A * @param sourceName Return locations only within this 0N/A * source file or <code>null</code> to return locations. 0N/A * @return a List of all source line {@link Location} objects. 0N/A * @throws AbsentInformationException if there is no line 0N/A * number information for this class and there are non-native, 0N/A * non-abstract executable members of this class. 0N/A * Or if <i>sourceName</i> is non-<code>null</code> 0N/A * and source name information is not present. 0N/A * @throws ClassNotPreparedException if this class not yet 0N/A * Returns a List containing all {@link Location} objects 0N/A * that map to the given line number. 0N/A * This method is equivalent to 0N/A * <code>locationsOfLine(vm.getDefaultStratum(), null, 0N/A * lineNumber)</code> - 0N/A * #locationsOfLine(java.lang.String,java.lang.String,int)} 0N/A * for more information. 0N/A * @param lineNumber the line number 0N/A * @return a List of all {@link Location} objects that map to 0N/A * @throws AbsentInformationException if there is no line 0N/A * number information for this class. 0N/A * @throws ClassNotPreparedException if this class not yet 0N/A * @see VirtualMachine#getDefaultStratum() 0N/A * Returns a List containing all {@link Location} objects 0N/A * that map to the given line number. 0N/A * For arrays ({@link ArrayType}) and primitive classes, the 0N/A * returned list is always empty. 0N/A * For interfaces ({@link InterfaceType}), the returned list 0N/A * will be non-empty only if the interface has executable code 0N/A * in its class initialization at the specified line number. 0N/A * An empty list will be returned if there is no executable 0N/A * code at the specified line number. 0N/A * Returned list is for the specified <i>stratum</i> 0N/A * (see {@link Location} for a description of strata). 0N/A * @param stratum the stratum to use for comparing line number 0N/A * and source name, or <code>null</code> to 0N/A * use the {@link #defaultStratum()}. 0N/A * @param sourceName the source name containing the line 0N/A * number, or <code>null</code> to match 0N/A * @param lineNumber the line number 0N/A * @return a List of all {@link Location} objects that map 0N/A * to the given line. 0N/A * @throws AbsentInformationException if there is no line 0N/A * number information for this class. 0N/A * Or if <i>sourceName</i> is non-<code>null</code> 0N/A * and source name information is not present. 0N/A * @throws ClassNotPreparedException if this class not yet 0N/A * Return the available strata for this reference type. 0N/A * See the {@link Location} for a description of strata. 0N/A * @return List of <CODE>java.lang.String</CODE>, each 0N/A * representing a stratum 0N/A * Returns the default stratum for this reference type. 0N/A * This value is specified in the class file and cannot 0N/A * be set by the user. If the class file does not 0N/A * specify a default stratum the base stratum 0N/A * (<code>"Java"</code>) will be returned. 0N/A * See the {@link Location} for a description of strata. 0N/A * Returns instances of this ReferenceType. 0N/A * Only instances that are reachable for the purposes of garbage collection 0N/A * Not all target virtual machines support this operation. 0N/A * Use {@link VirtualMachine#canGetInstanceInfo()} 0N/A * to determine if the operation is supported. 0N/A * @see VirtualMachine#instanceCounts(List) 0N/A * @see ObjectReference#referringObjects(long) 0N/A * @param maxInstances the maximum number of instances to return. 0N/A * Must be non-negative. If zero, all instances are returned. 0N/A * @return a List of {@link ObjectReference} objects. If there are 0N/A * no instances of this ReferenceType, a zero-length list is returned. 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetInstanceInfo() canGetInstanceInfo()} 0N/A * @throws java.lang.IllegalArgumentException if maxInstances is less 0N/A * Compares the specified Object with this ReferenceType for equality. 0N/A * @return true if the Object is a {@link ReferenceType}, if the 0N/A * ReferenceTypes belong to the same VM, and if they mirror classes 0N/A * which correspond to the same instance of java.lang.Class in that VM. 0N/A * Returns the hash code value for this ObjectReference. 0N/A * @return the integer hash code 0N/A * Returns the class major version number, as defined in the class file format 0N/A * of the Java Virtual Machine Specification. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the returned major version number value is zero. 0N/A * Not all target virtual machines support this operation. 0N/A * Use {@link VirtualMachine#canGetClassFileVersion()} 0N/A * to determine if the operation is supported. 0N/A * @return the major version number of the class. 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetClassFileVersion() canGetClassFileVersion()} 0N/A * Returns the class minor version number, as defined in the class file format 0N/A * of the Java Virtual Machine Specification. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the returned minor version number value is zero. 0N/A * Not all target virtual machines support this operation. 0N/A * Use {@link VirtualMachine#canGetClassFileVersion()} 0N/A * to determine if the operation is supported. 0N/A * @return the minor version number of the class. 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetClassFileVersion() canGetClassFileVersion()} 0N/A * Returns the number of entries in the constant pool plus one. 0N/A * This corresponds to the constant_pool_count item of the Class File Format 0N/A * in the Java Virtual Machine Specification. 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * the returned constant pool count value is zero. 0N/A * Not all target virtual machines support this operation. 0N/A * Use {@link VirtualMachine#canGetConstantPool()} 0N/A * to determine if the operation is supported. 0N/A * @return total number of constant pool entries for a class plus one. 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetConstantPool() canGetConstantPool()} 0N/A * @see #constantPool() 0N/A * Returns the raw bytes of the constant pool in the format of the 0N/A * constant_pool item of the Class File Format in the Java Virtual 0N/A * Machine Specification. The format of the constant pool may 0N/A * differ between versions of the Class File Format, so, the 0N/A * minor and major class version numbers should be checked for 0N/A * For arrays ({@link ArrayType}) and primitive classes, 0N/A * a zero length byte array is returned. 0N/A * Not all target virtual machines support this operation. 0N/A * Use {@link VirtualMachine#canGetConstantPool()} 0N/A * to determine if the operation is supported. 0N/A * @return the raw bytes of constant pool. 0N/A * @throws java.lang.UnsupportedOperationException if 0N/A * the target virtual machine does not support this 0N/A * {@link VirtualMachine#canGetConstantPool() canGetConstantPool()} 0N/A * @see #constantPoolCount()