8003237: G1: Reduce unnecessary (and failing) allocation attempts when handling an evacuation failure
Summary: Remember for every generation whether the memory for that generation has already been exhausted. If so, do not try to get a new region for these generations. Further, if the last generation is full, early exit from copy_to_survivor_space.
Reviewed-by: jmasa, brutisso
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/*
* @test
* @bug 7127066
* @summary Class verifier accepts an invalid class file
* @compile BadMap.jasm
* @compile BadMapDstore.jasm
* @compile BadMapIstore.jasm
* @run main/othervm -Xverify:all StackMapCheck
*/
public class StackMapCheck {
public static void main(String args[]) throws Throwable {
System.out.println("Regression test for bug 7127066");
try {
Class newClass = Class.forName("BadMap");
throw new RuntimeException(
"StackMapCheck failed, BadMap did not throw VerifyError");
} catch (java.lang.VerifyError e) {
System.out.println("BadMap passed, VerifyError was thrown");
}
try {
Class newClass = Class.forName("BadMapDstore");
throw new RuntimeException(
"StackMapCheck failed, BadMapDstore did not throw VerifyError");
} catch (java.lang.VerifyError e) {
System.out.println("BadMapDstore passed, VerifyError was thrown");
}
try {
Class newClass = Class.forName("BadMapIstore");
throw new RuntimeException(
"StackMapCheck failed, BadMapIstore did not throw VerifyError");
} catch (java.lang.VerifyError e) {
System.out.println("BadMapIstore passed, VerifyError was thrown");
}
}
}