Deserializes a given stack trace to java.lang.Throwable and then groups together stack trace elements by library API calls.
Useful for programmatically analyzing stack traces.
Repository
git clone https://github.com/talal830/stackifier.git
cd stackifier
mvn clean install
Dependency
<dependency>
<groupId>com.stackifier</groupId>
<artifactId>stackifier</artifactId>
<version>1.1</version>
</dependency>
// Create Stackifier using builder
Stackifier stackifier = new Stackifier.Builder()
.add("org.apache.commons") // Add libraries you wish to stackup in stack trace
.add("java", "sun", "junit")
.use(new StackTraceDeserializer()) // Skip this to use default deserializer
.get();
// Some stacktrace as string
String stacktrace = "java.lang.IndexOutOfBoundsException...."
// Use stackifier to stackify stacktrace
Stackified stackified = stackifier.stackify(stacktrace);
// Use stackified object to get stacked groups and so on
List<Group> groups = stackified.getGroups();
java.lang.IndexOutOfBoundsException: Index: 2, Size: 2
at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.get(ArrayList.java:429)
at org.apache.commons.collections4.iterators.CollatingIterator.set(CollatingIterator.java:307)
at org.apache.commons.collections4.iterators.CollatingIterator.least(CollatingIterator.java:350)
at org.apache.commons.collections4.iterators.CollatingIterator.next(CollatingIterator.java:245)
at org.apache.commons.collections4.iterators.CollatingIteratorTest.testIterateEvenEven(CollatingIteratorTest.java:135)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at junit.framework.TestCase.runTest(TestCase.java:176)
at junit.framework.TestCase.runBare(TestCase.java:141)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:129)
at junit.framework.TestSuite.runTest(TestSuite.java:255)
at junit.framework.TestSuite.run(TestSuite.java:250)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
at org.pitest.junit.adapter.CustomRunnerExecutor.run(CustomRunnerExecutor.java:42)
at org.pitest.junit.adapter.AdaptedJUnitTestUnit.execute(AdaptedJUnitTestUnit.java:85)
at org.pitest.mutationtest.execute.MutationTimeoutDecorator$1.run(MutationTimeoutDecorator.java:89)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
Stackified stackified = stackifier.stackify(sample);
stackified.prettyPrint();Output
(1) java
java.util.ArrayList.rangeCheck(ArrayList.java:653)
java.util.ArrayList.get(ArrayList.java:429)
(2) org.apache.commons
org.apache.commons.collections4.iterators.CollatingIterator.set(CollatingIterator.java:307)
org.apache.commons.collections4.iterators.CollatingIterator.least(CollatingIterator.java:350)
org.apache.commons.collections4.iterators.CollatingIterator.next(CollatingIterator.java:245)
org.apache.commons.collections4.iterators.CollatingIteratorTest.testIterateEvenEven(CollatingIteratorTest.java:135)
(3) sun
sun.reflect.GeneratedMethodAccessor2.invoke(Native Method)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
(4) java
java.lang.reflect.Method.invoke(Method.java:498)
(5) junit
junit.framework.TestCase.runTest(TestCase.java:176)
junit.framework.TestCase.runBare(TestCase.java:141)
junit.framework.TestResult$1.protect(TestResult.java:122)
junit.framework.TestResult.runProtected(TestResult.java:142)
junit.framework.TestResult.run(TestResult.java:125)
junit.framework.TestCase.run(TestCase.java:129)
junit.framework.TestSuite.runTest(TestSuite.java:255)
junit.framework.TestSuite.run(TestSuite.java:250)
(6) other
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
(7) org.pitest
org.pitest.junit.adapter.CustomRunnerExecutor.run(CustomRunnerExecutor.java:42)
org.pitest.junit.adapter.AdaptedJUnitTestUnit.execute(AdaptedJUnitTestUnit.java:85)
org.pitest.mutationtest.execute.MutationTimeoutDecorator$1.run(MutationTimeoutDecorator.java:89)
(8) java
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.lang.Thread.run(Thread.java:748)
By group name
List<Group> javaGroups = stackified.getGroups("java"); // here group name is 'java'
for (Group group : groups) {
// access group's stacktrace elements
List<StackTraceElement> elements = group.getElements();
// pretty print
System.out.println(group.prettyString());
....
}
Output
(1) java
java.util.ArrayList.rangeCheck(ArrayList.java:653)
java.util.ArrayList.get(ArrayList.java:429)
(4) java
java.lang.reflect.Method.invoke(Method.java:498)
(8) java
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.lang.Thread.run(Thread.java:748)
By group Id
Optional<Group> javaGroups = stackified.getGroup(8); // Getting 'java' group at 8th index
System.out.println(group.get().prettyString());
Output
(8) java
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.lang.Thread.run(Thread.java:748)
Getting elements directly by group id
List<StackTraceElement> javaGroupElements = stackified.getElements(8); // All stack trace elements in 'java' group at 8th index
....
Output
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.lang.Thread.run(Thread.java:748)
This project is licensed under the MIT License