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package com.yahoo.container.di.componentgraph.core;
import java.util.Arrays;
class Exceptions {
static <E extends Throwable> E removeStackTrace(E exception) {
if (preserveStackTrace()) {
return exception;
} else {
exception.setStackTrace(new StackTraceElement[0]);
return exception;
}
}
static boolean preserveStackTrace() {
String preserve = System.getProperty("jdisc.container.preserveStackTrace");
return (preserve != null && !preserve.isEmpty());
}
static Throwable cutStackTraceAtConstructor(Throwable throwable, StackTraceElement marker) {
if (throwable != null && !preserveStackTrace()) {
StackTraceElement[] stackTrace = throwable.getStackTrace();
int upTo = stackTrace.length - 1;
// take until ComponentNode is reached
while (upTo >= 0 && !stackTrace[upTo].getClassName().equals(ComponentNode.class.getName())) {
upTo--;
}
// then drop until <init> is reached
while (upTo >= 0 && !stackTrace[upTo].getMethodName().equals("<init>")) {
upTo--;
}
if (upTo < 0) {
throwable.setStackTrace(new StackTraceElement[0]);
} else {
throwable.setStackTrace(Arrays.copyOfRange(stackTrace, 0, upTo));
}
cutStackTraceAtConstructor(throwable.getCause(), marker);
}
return throwable;
}
}
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