1 files changed, 0 insertions, 231 deletions
diff --git a/src/main/java/org/junit/internal/Throwables.java b/src/main/java/org/junit/internal/Throwables.java
index 3f0f7a3..86dceef 100644
--- a/src/main/java/org/junit/internal/Throwables.java
+++ b/src/main/java/org/junit/internal/Throwables.java
@@ -1,17 +1,5 @@
 package org.junit.internal;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringReader;
-import java.io.StringWriter;
-import java.lang.reflect.Method;
-import java.util.AbstractList;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-
 /**
  * Miscellaneous functions dealing with {@code Throwable}.
  *
@@ -51,223 +39,4 @@ public final class Throwables {
     private static <T extends Throwable> void rethrow(Throwable e) throws T {
         throw (T) e;
     }
-
-    /**
-     * Returns the stacktrace of the given Throwable as a String.
-     *
-     * @since 4.13
-     */
-    public static String getStacktrace(Throwable exception) {
-        StringWriter stringWriter = new StringWriter();
-        PrintWriter writer = new PrintWriter(stringWriter);
-        exception.printStackTrace(writer);
-        return stringWriter.toString();
-    }
-
-    /**
-     * Gets a trimmed version of the stack trace of the given exception. Stack trace
-     * elements that are below the test method are filtered out.
-     *
-     * @return a trimmed stack trace, or the original trace if trimming wasn't possible
-     */
-    public static String getTrimmedStackTrace(Throwable exception) {
-        List<String> trimmedStackTraceLines = getTrimmedStackTraceLines(exception);
-        if (trimmedStackTraceLines.isEmpty()) {
-            return getFullStackTrace(exception);
-        }
-
-        StringBuilder result = new StringBuilder(exception.toString());
-        appendStackTraceLines(trimmedStackTraceLines, result);
-        appendStackTraceLines(getCauseStackTraceLines(exception), result);
-        return result.toString();
-    }
-
-    private static List<String> getTrimmedStackTraceLines(Throwable exception) {
-        List<StackTraceElement> stackTraceElements = Arrays.asList(exception.getStackTrace());
-        int linesToInclude = stackTraceElements.size();
-
-        State state = State.PROCESSING_OTHER_CODE;
-        for (StackTraceElement stackTraceElement : asReversedList(stackTraceElements)) {
-            state = state.processStackTraceElement(stackTraceElement);
-            if (state == State.DONE) {
-                List<String> trimmedLines = new ArrayList<String>(linesToInclude + 2);
-                trimmedLines.add("");
-                for (StackTraceElement each : stackTraceElements.subList(0, linesToInclude)) {
-                    trimmedLines.add("\tat " + each);
-                }
-                if (exception.getCause() != null) {
-                    trimmedLines.add("\t... " + (stackTraceElements.size() - trimmedLines.size()) + " trimmed");
-                }
-                return trimmedLines;
-            }
-            linesToInclude--;
-        }
-        return Collections.emptyList();
-    }
-
-    private static final Method getSuppressed = initGetSuppressed();
-
-    private static Method initGetSuppressed() {
-        try {
-            return Throwable.class.getMethod("getSuppressed");
-        } catch (Throwable e) {
-            return null;
-        }
-    }
-
-    private static boolean hasSuppressed(Throwable exception) {
-        if (getSuppressed == null) {
-            return false;
-        }
-        try {
-            Throwable[] suppressed = (Throwable[]) getSuppressed.invoke(exception);
-            return suppressed.length != 0;
-        } catch (Throwable e) {
-            return false;
-        }
-    }
-
-    private static List<String> getCauseStackTraceLines(Throwable exception) {
-        if (exception.getCause() != null || hasSuppressed(exception)) {
-            String fullTrace = getFullStackTrace(exception);
-            BufferedReader reader = new BufferedReader(
-                    new StringReader(fullTrace.substring(exception.toString().length())));
-            List<String> causedByLines = new ArrayList<String>();
-    
-            try {
-                String line;
-                while ((line = reader.readLine()) != null) {
-                    if (line.startsWith("Caused by: ") || line.trim().startsWith("Suppressed: ")) {
-                        causedByLines.add(line);
-                        while ((line = reader.readLine()) != null) {
-                            causedByLines.add(line);
-                        }
-                        return causedByLines;
-                    }
-                }
-            } catch (IOException e) {
-                // We should never get here, because we are reading from a StringReader
-            }
-        }
-
-        return Collections.emptyList();
-    }
-
-    private static String getFullStackTrace(Throwable exception) {
-        StringWriter stringWriter = new StringWriter();
-        PrintWriter writer = new PrintWriter(stringWriter);
-        exception.printStackTrace(writer);
-        return stringWriter.toString();
-    }
-
-    private static void appendStackTraceLines(
-            List<String> stackTraceLines, StringBuilder destBuilder) {
-        for (String stackTraceLine : stackTraceLines) {
-            destBuilder.append(String.format("%s%n", stackTraceLine));
-        }
-    }
-
-    private static <T> List<T> asReversedList(final List<T> list) {
-        return new AbstractList<T>() {
-
-            @Override
-            public T get(int index) {
-                return list.get(list.size() - index - 1);
-            }
-
-            @Override
-            public int size() {
-                return list.size();
-            }
-        };
-    }
-
-    private enum State {
-        PROCESSING_OTHER_CODE {
-            @Override public State processLine(String methodName) {
-                if (isTestFrameworkMethod(methodName)) {
-                    return PROCESSING_TEST_FRAMEWORK_CODE;
-                }
-                return this;
-            }
-        },
-        PROCESSING_TEST_FRAMEWORK_CODE {
-            @Override public State processLine(String methodName) {
-                if (isReflectionMethod(methodName)) {
-                    return PROCESSING_REFLECTION_CODE;
-                } else if (isTestFrameworkMethod(methodName)) {
-                    return this;
-                }
-                return PROCESSING_OTHER_CODE;
-            } 
-        },
-        PROCESSING_REFLECTION_CODE {
-            @Override public State processLine(String methodName) {
-                if (isReflectionMethod(methodName)) {
-                    return this;
-                } else if (isTestFrameworkMethod(methodName)) {
-                    // This is here to handle TestCase.runBare() calling TestCase.runTest().
-                    return PROCESSING_TEST_FRAMEWORK_CODE;
-                }
-                return DONE;
-            } 
-        },
-        DONE {
-            @Override public State processLine(String methodName) {
-                return this;
-            } 
-        };
-
-        /** Processes a stack trace element method name, possibly moving to a new state. */
-        protected abstract State processLine(String methodName);
-        
-        /** Processes a stack trace element, possibly moving to a new state. */
-        public final State processStackTraceElement(StackTraceElement element) {
-            return processLine(element.getClassName() + "." + element.getMethodName() + "()");
-        }
-    }
-
-    private static final String[] TEST_FRAMEWORK_METHOD_NAME_PREFIXES = {
-        "org.junit.runner.",
-        "org.junit.runners.",
-        "org.junit.experimental.runners.",
-        "org.junit.internal.",
-        "junit.extensions",
-        "junit.framework",
-        "junit.runner",
-        "junit.textui",
-    };
-
-    private static final String[] TEST_FRAMEWORK_TEST_METHOD_NAME_PREFIXES = {
-        "org.junit.internal.StackTracesTest",
-    };
-
-    private static boolean isTestFrameworkMethod(String methodName) {
-        return isMatchingMethod(methodName, TEST_FRAMEWORK_METHOD_NAME_PREFIXES) &&
-                !isMatchingMethod(methodName, TEST_FRAMEWORK_TEST_METHOD_NAME_PREFIXES);
-    }
-    
-    private static final String[] REFLECTION_METHOD_NAME_PREFIXES = {
-        "sun.reflect.",
-        "java.lang.reflect.",
-        "jdk.internal.reflect.",
-        "org.junit.rules.RunRules.<init>(",
-        "org.junit.rules.RunRules.applyAll(", // calls TestRules
-        "org.junit.runners.RuleContainer.apply(", // calls MethodRules & TestRules
-        "junit.framework.TestCase.runBare(", // runBare() directly calls setUp() and tearDown()
-   };
-    
-    private static boolean isReflectionMethod(String methodName) {
-        return isMatchingMethod(methodName, REFLECTION_METHOD_NAME_PREFIXES);
-    }
-
-    private static boolean isMatchingMethod(String methodName, String[] methodNamePrefixes) {
-        for (String methodNamePrefix : methodNamePrefixes) {
-            if (methodName.startsWith(methodNamePrefix)) {
-                return true;
-            }
-        }
-        
-        return false;
-    }
 }