jdk.internal.jvmci.hotspot

Class HotSpotVMConfigVerifier

java.lang.Object

jdk.internal.org.objectweb.asm.ClassVisitor

jdk.internal.jvmci.hotspot.HotSpotVMConfigVerifier

final class HotSpotVMConfigVerifier
extends jdk.internal.org.objectweb.asm.ClassVisitor

A ClassVisitor that verifies HotSpotVMConfig does not access Unsafe from any of its non-static, non-constructor methods. This ensures that a deserialized HotSpotVMConfig object does not perform any unsafe reads on addresses that are only valid in the context in which the object was serialized. Note that this does not catch cases where a client uses an address stored in a HotSpotVMConfig field.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	lineNo Line number for error reporting.
(package private) String	sourceFile Source file context for error reporting.

Fields inherited from class jdk.internal.org.objectweb.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor and Description
HotSpotVMConfigVerifier()

Method Summary

Modifier and Type	Method and Description
static boolean	check()
(package private) void	error(String message)
private static Class<?>	resolve(String name)
(package private) void	verify(boolean condition, String message)
jdk.internal.org.objectweb.asm.MethodVisitor	visitMethod(int access, String name, String d, String signature, String[] exceptions)
void	visitSource(String source, String debug)

Methods inherited from class jdk.internal.org.objectweb.asm.ClassVisitor

visit, visitAnnotation, visitAttribute, visitEnd, visitField, visitInnerClass, visitOuterClass, visitTypeAnnotation

Methods inherited from class java.lang.Object

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

Field Detail

sourceFile

String sourceFile

Source file context for error reporting.

lineNo

int lineNo

Line number for error reporting.

Constructor Detail

HotSpotVMConfigVerifier

HotSpotVMConfigVerifier()

Method Detail

check

public static boolean check()

resolve

private static Class<?> resolve(String name)

visitSource

public void visitSource(String source,
                        String debug)

Overrides:

visitSource in class jdk.internal.org.objectweb.asm.ClassVisitor

verify

void verify(boolean condition,
            String message)

error

void error(String message)

visitMethod

public jdk.internal.org.objectweb.asm.MethodVisitor visitMethod(int access,
                                                                String name,
                                                                String d,
                                                                String signature,
                                                                String[] exceptions)

Overrides:

visitMethod in class jdk.internal.org.objectweb.asm.ClassVisitor