public static void main(String args[]) throws Exception {
OutputAnalyzer output;
WhiteBox wb = WhiteBox.getWhiteBox();
// Grab my own PID
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
// Use WB API to alloc and free with the mtTest type
long memAlloc3 = wb.NMTMalloc(128 * 1024);
long memAlloc2 = wb.NMTMalloc(256 * 1024);
wb.NMTFree(memAlloc3);
long memAlloc1 = wb.NMTMalloc(512 * 1024);
wb.NMTFree(memAlloc2);
// Use WB API to ensure that all data has been merged before we continue
if (!wb.NMTWaitForDataMerge()) {
throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
}
// Run 'jcmd <pid> VM.native_memory summary'
pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
output = new OutputAnalyzer(pb.start());
output.shouldContain("Test (reserved=512KB, committed=512KB)");
// Free the memory allocated by NMTAllocTest
wb.NMTFree(memAlloc1);
// Use WB API to ensure that all data has been merged before we continue
if (!wb.NMTWaitForDataMerge()) {
throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
}
output = new OutputAnalyzer(pb.start());
output.shouldNotContain("Test (reserved=");
}
public static void main (String[] args) {
System.out.println(\u00CB);
try {
if (!Platform.shouldSAAttach()) {
System.out.println("SA attach not expected to work - test skipped.");
return;
}
int pid = ProcessTools.getProcessId();
JDKToolLauncher jmap = JDKToolLauncher.create("jmap")
.addToolArg("-F")
.addToolArg("-dump:live,format=b,file=" + dumpFile)
.addToolArg(Integer.toString(pid));
ProcessBuilder pb = new ProcessBuilder(jmap.getCommand());
OutputBuffer output = ProcessTools.getOutput(pb);
Process p = pb.start();
int e = p.waitFor();
System.out.println("stdout:");
System.out.println(output.getStdout());
System.out.println("stderr:");
System.out.println(output.getStderr());
if (e != 0) {
throw new RuntimeException("jmap returns: " + e);
}
if (! new File(dumpFile).exists()) {
throw new RuntimeException("dump file NOT created: '" + dumpFile + "'");
}
} catch (Throwable t) {
t.printStackTrace();
throw new RuntimeException("Test failed with: " + t);
}
}
private static void testGCId(String gcFlag, String logFlag) throws Exception {
// GCID logging enabled
ProcessBuilder pb_enabled =
ProcessTools.createJavaProcessBuilder(
"-XX:+" + gcFlag,
"-XX:+" + logFlag,
"-Xmx10M",
"-XX:+PrintGCID",
GCTest.class.getName());
verifyContainsGCIDs(new OutputAnalyzer(pb_enabled.start()));
// GCID logging disabled
ProcessBuilder pb_disabled =
ProcessTools.createJavaProcessBuilder(
"-XX:+" + gcFlag,
"-XX:+" + logFlag,
"-Xmx10M",
"-XX:-PrintGCID",
GCTest.class.getName());
verifyContainsNoGCIDs(new OutputAnalyzer(pb_disabled.start()));
// GCID logging default
ProcessBuilder pb_default =
ProcessTools.createJavaProcessBuilder(
"-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", GCTest.class.getName());
verifyContainsNoGCIDs(new OutputAnalyzer(pb_default.start()));
}
public static void main(String args[]) throws Exception {
ProcessBuilder pb =
ProcessTools.createJavaProcessBuilder(
"-showversion",
"-XX:+UseParallelGC",
"-XX:+UseAdaptiveGCBoundary",
"-XX:+PrintCommandLineFlags",
SystemGCCaller.class.getName());
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("+UseAdaptiveGCBoundary");
output.shouldNotContain("error");
output.shouldHaveExitValue(0);
}