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Fixes for running with OpenJ9 #12

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Fixes for running with OpenJ9 #12

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98835d7
Revert "More specifically matches lambda proxy class names."
Swapnilr1 May 15, 2021
97bc3e7
Generate stackMapTable for transformed classes
Swapnilr1 May 15, 2021
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25 changes: 9 additions & 16 deletions PlayOutAgent/rtlib/de/bodden/tamiflex/playout/rt/ReflLogger.java
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Original file line number Diff line number Diff line change
Expand Up @@ -160,24 +160,17 @@ public static void constructorMethodInvoke(Constructor<?> c, Kind constructorMet
try {
StackTraceElement frame = getInvokingFrame();
String[] paramTypes = classesToTypeNames(c.getParameterTypes());
String className = c.getDeclaringClass().getName();
// If this is a lambda proxy class the className comes out in the form:
// "<dotted package>.<class>$$Lambda$<count>/<hash code>",
// however, when we take its byte code to generate the class name (as happens when we
// dump the classes to disk) the name does not contain the "/<hash code>".
// This logic below is to remove the hash code so the reflection log entries match
// the classes that are dumped and soot can process them.
if (className.contains("$$Lambda$"))
String declareClassName = c.getDeclaringClass().getName();
// Lambda's declaring class name comes out as: "<dotted package>.<class>$$Lambda$<count>/<number>",
// however we write out the lambda class as "<dotted package>.<class>$$Lambda$<count>.class"
// We need to remove "/<number>" so the reflection log entry matches the class file name.
if (declareClassName.contains("$$Lambda$"))
{
String slashHashCode = "/" + c.getDeclaringClass().hashCode();
if (!className.endsWith(slashHashCode)) {
System.err.println("unexpected lambda proxy class: " + className);
}
else {
className = className.substring(0, className.length() - slashHashCode.length());
}
int ignoreStart = declareClassName.lastIndexOf('/');
if (ignoreStart != -1)
declareClassName = declareClassName.substring(0, ignoreStart);
}
logAndIncrementTargetMethodEntry(frame.getClassName()+"."+frame.getMethodName(),frame.getLineNumber(),constructorMethodKind,className,"void","<init>", c.isAccessible(), paramTypes);
logAndIncrementTargetMethodEntry(frame.getClassName()+"."+frame.getMethodName(),frame.getLineNumber(),constructorMethodKind,declareClassName,"void","<init>", c.isAccessible(), paramTypes);

} finally {
leavingReflectionAPI();
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2 changes: 1 addition & 1 deletion PlayOutAgent/src/de/bodden/tamiflex/playout/ReflectionMonitor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ public byte[] transform(ClassLoader loader, String className,

try {
final ClassReader creader = new ClassReader(classfileBuffer);
final ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
final ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
ClassVisitor visitor = writer;

for (AbstractTransformation transformation : transformations)
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