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8342376: More reliable OOM handling in ExceptionDuringDumpAtObjectsInitPhase test

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Reviewed-by: iklam, phh
This commit is contained in:
Aleksey Shipilev 2024-10-21 15:56:19 +00:00
parent 18bcbf7941
commit 37aa320f57
1 changed files with 12 additions and 6 deletions
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18
test/hotspot/jtreg/runtime/cds/appcds/javaldr/GCDuringDumpTransformer.java
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@ -34,7 +34,10 @@ public class GCDuringDumpTransformer implements ClassFileTransformer {
static boolean TEST_WITH_CLEANER = Boolean.getBoolean("test.with.cleaner");
static boolean TEST_WITH_EXCEPTION = Boolean.getBoolean("test.with.exception");
static boolean TEST_WITH_OOM = Boolean.getBoolean("test.with.oom");
static final int WASTE_SIZE = 1024;
static List<byte[]> waste = new ArrayList();
static Object sink;
static Cleaner cleaner;
static Thread thread;
@ -59,10 +62,13 @@ public class GCDuringDumpTransformer implements ClassFileTransformer {
return new byte[] {1, 2, 3, 4, 5, 6, 7, 8};
}
if (TEST_WITH_OOM) {
// fill until OOM
// Fill until OOM and fail. This sets up heap for secondary OOM
// later on, which should be caught by CDS code. The size of waste
// array defines how much max free space would be left for later
// code to run with.
System.out.println("Fill objects until OOM");
for (;;) {
waste.add(new byte[64*1024]);
while (true) {
waste.add(new byte[WASTE_SIZE]);
}
}
}
@ -104,8 +110,8 @@ public class GCDuringDumpTransformer implements ClassFileTransformer {
}
public static void makeGarbage() {
for (int x=0; x<10; x++) {
Object[] a = new Object[10000];
for (int x = 0; x < 10; x++) {
sink = new byte[WASTE_SIZE];
}
}
@ -115,7 +121,7 @@ public class GCDuringDumpTransformer implements ClassFileTransformer {
public void run() {
// Allocate something. This will cause G1 to allocate an EDEN region.
// See JDK-8245925
Object o = new Object();
sink = new Object();
System.out.println("cleaning " + i);
}
}