本文整理匯總了Java中java.lang.instrument.Instrumentation.isRetransformClassesSupported方法的典型用法代碼示例。如果您正苦於以下問題：Java Instrumentation.isRetransformClassesSupported方法的具體用法？Java Instrumentation.isRetransformClassesSupported怎麽用？Java Instrumentation.isRetransformClassesSupported使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.lang.instrument.Instrumentation的用法示例。
在下文中一共展示了Instrumentation.isRetransformClassesSupported方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: premain
import java.lang.instrument.Instrumentation; //導入方法依賴的package包/類
public static void premain(String args, Instrumentation instrumentation) {
if (!instrumentation.isRetransformClassesSupported()) {
System.out.println("Class retransformation is not supported.");
return;
}
System.out.println("Calling lambda to ensure that lambda forms were created");
Agent.lambda.run();
System.out.println("Registering class file transformer");
instrumentation.addTransformer(new Agent());
for (Class c : instrumentation.getAllLoadedClasses()) {
if (c.getName().contains("LambdaForm") &&
instrumentation.isModifiableClass(c)) {
System.out.format("We've found a modifiable lambda form: %s%n", c.getName());
try {
instrumentation.retransformClasses(c);
} catch (UnmodifiableClassException e) {
throw new AssertionError("Modification of modifiable class " +
"caused UnmodifiableClassException", e);
}
}
}
}
示例2: agentmain
import java.lang.instrument.Instrumentation; //導入方法依賴的package包/類
public static void agentmain(@SuppressWarnings("unused") String args, Instrumentation inst) throws Exception {
if (inst.isRedefineClassesSupported() && inst.isRetransformClassesSupported()) {
inst.addTransformer(new Redefiner(), true);
Class<?>[] allClasses = inst.getAllLoadedClasses();
for (int i = 0; i < allClasses.length; i++) {
Class<?> c = allClasses[i];
if (c == Intrinsic.class) {
inst.retransformClasses(new Class<?>[]{c});
}
}
}
}
示例3: agentmain
import java.lang.instrument.Instrumentation; //導入方法依賴的package包/類
public static void agentmain(@SuppressWarnings("unused") String args, Instrumentation inst) throws Exception {
if (inst.isRedefineClassesSupported() && inst.isRetransformClassesSupported()) {
inst.addTransformer(new FooTransformer(), true);
Class<?>[] allClasses = inst.getAllLoadedClasses();
for (int i = 0; i < allClasses.length; i++) {
Class<?> c = allClasses[i];
if (c == Foo.class) {
inst.retransformClasses(new Class<?>[]{c});
}
}
}
}