co.paralleluniverse.common.util.ExtendedStackTraceClassContext Maven / Gradle / Ivy
/*
* Copyright (c) 2013-2016, Parallel Universe Software Co. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 3.0
* as published by the Free Software Foundation.
*/
package co.paralleluniverse.common.util;
/**
* @author pron
*/
class ExtendedStackTraceClassContext extends ExtendedStackTrace {
private static final ClassContext classContextGenerator = new ClassContext();
private ExtendedStackTraceElement[] est;
private final Class[] classContext;
ExtendedStackTraceClassContext() {
super(new Throwable());
this.classContext = classContextGenerator.getClassContext();
// int i = 0;
// for (Class c : classContext)
// System.out.println("== " + i++ + " " + c.getName());
// System.out.println("");
// i = 0;
// for (StackTraceElement e : t.getStackTrace())
// System.out.println("-- " + i++ + " " + e);
}
@Override
public synchronized ExtendedStackTraceElement[] get() {
if (est == null) {
final StackTraceElement[] st = t.getStackTrace();
if (st != null) {
est = new ExtendedStackTraceElement[st.length - 1];
for (int i = 1, k = 2; i < st.length; i++, k++) {
if (skipCTX(classContext[k])) {
i--;
} else {
final StackTraceElement ste = st[i];
final Class clazz;
if (skipSTE(st[i])) {
k--;
clazz = null;
} else {
clazz = classContext[k];
}
est[i - 1] = new BasicExtendedStackTraceElement(ste, clazz);
// System.out.println(">>>> " + k + ": " + (clazz != null ? clazz.getName() : null) + " :: " + i + ": " + ste);
}
}
}
}
return est;
}
static boolean skipSTE(StackTraceElement ste) {
final String className = ste.getClassName();
return (className.startsWith("sun.reflect")
|| className.startsWith("jdk.internal.reflect.")
|| className.equals("java.lang.reflect.Method")
|| className.startsWith("java.lang.invoke.")
// Originated from http://bugs.java.com/view_bug.do?bug_id=8025636, Quasar PR #207
|| className.contains("$$Lambda$"));
}
private static boolean skipCTX(Class c) {
final String className = c.getName();
return (className.startsWith("java.lang.invoke.")
// Originated from http://bugs.java.com/view_bug.do?bug_id=8025636, Quasar PR #207
|| className.contains("$$Lambda$"));
}
private static class ClassContext extends SecurityManager {
@Override
public Class[] getClassContext() {
return super.getClassContext();
}
}
}