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Do not fail when deserializing incompatible metadata

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Catch all exceptions when deserializing metadata with an incompatible version
to prevent the compiler from failing on discovering incompatible classes on the
classpath. Note that this is not the perfect solution: any invariant may be
broken in the incompatible metadata and it may result in a later exception
This commit is contained in:
Alexander Udalov
2016-12-07 21:30:26 +03:00
parent 789483e1eb
commit 830d2f6603
9 changed files with 172 additions and 12 deletions
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compiler/tests/org/jetbrains/kotlin/cli/WrongBytecodeVersionTest.kt
+22
View File
@@ -74,6 +74,28 @@ class WrongBytecodeVersionTest : KtUsefulTestCase() {
override fun visit(name: String, value: Any) {
super.visit(name, transform(name, value) ?: value)
}
override fun visitArray(name: String): AnnotationVisitor {
val entries = arrayListOf<String>()
val arrayVisitor = { super.visitArray(name) }
return object : AnnotationVisitor(Opcodes.ASM5) {
override fun visit(name: String?, value: Any) {
entries.add(value as String)
}
override fun visitEnd() {
@Suppress("UNCHECKED_CAST")
val result = transform(name, entries.toTypedArray()) as Array<String>? ?: entries.toTypedArray()
if (result.isEmpty()) return
with(arrayVisitor()) {
for (value in result) {
visit(null, value)
}
visitEnd()
}
}
}
}
}
}
return superVisitor
compiler/tests/org/jetbrains/kotlin/jvm/compiler/CompileKotlinAgainstCustomBinariesTest.java
+49 -3
View File
@@ -19,11 +19,13 @@ package org.jetbrains.kotlin.jvm.compiler;
import com.google.common.collect.Iterables;
import com.intellij.openapi.util.Ref;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.util.ArrayUtil;
import kotlin.Pair;
import kotlin.collections.SetsKt;
import kotlin.io.FilesKt;
import kotlin.jvm.functions.Function2;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.analyzer.AnalysisResult;
import org.jetbrains.kotlin.cli.AbstractCliTest;
import org.jetbrains.kotlin.cli.WrongBytecodeVersionTest;
@@ -250,7 +252,11 @@ public class CompileKotlinAgainstCustomBinariesTest extends TestCaseWithTmpdir {
KotlinTestUtils.assertEqualsToFile(new File(getTestDataDirectory(), "output.txt"), normalizeOutput(output));
}
private void doTestKotlinLibraryWithWrongMetadataVersion(@NotNull String libraryName, @NotNull String... additionalOptions) throws Exception {
private void doTestKotlinLibraryWithWrongMetadataVersion(
@NotNull String libraryName,
@Nullable final Function2<String, Object, Object> additionalTransformation,
@NotNull String... additionalOptions
) throws Exception {
final int[] version = new JvmMetadataVersion(42, 0, 0).toArray();
File library = transformJar(compileLibrary(libraryName), new Function2<String, byte[], byte[]>() {
@Override
@@ -258,6 +264,10 @@ public class CompileKotlinAgainstCustomBinariesTest extends TestCaseWithTmpdir {
return WrongBytecodeVersionTest.Companion.transformMetadataInClassFile(bytes, new Function2<String, Object, Object>() {
@Override
public Object invoke(String name, Object value) {
if (additionalTransformation != null) {
Object result = additionalTransformation.invoke(name, value);
if (result != null) return result;
}
return JvmAnnotationNames.METADATA_VERSION_FIELD_NAME.equals(name) ? version : null;
}
});
@@ -417,13 +427,49 @@ public class CompileKotlinAgainstCustomBinariesTest extends TestCaseWithTmpdir {
*/
public void testWrongMetadataVersion() throws Exception {
doTestKotlinLibraryWithWrongMetadataVersion("library");
doTestKotlinLibraryWithWrongMetadataVersion("library", null);
}
public void testWrongMetadataVersionBadMetadata() throws Exception {
doTestKotlinLibraryWithWrongMetadataVersion(
"library",
new Function2<String, Object, Object>() {
@Override
public Object invoke(String name, Object value) {
if (JvmAnnotationNames.METADATA_DATA_FIELD_NAME.equals(name)) {
String[] strings = (String[]) value;
for (int i = 0; i < strings.length; i++) {
byte[] bytes = strings[i].getBytes();
for (int j = 0; j < bytes.length; j++) bytes[j] ^= 42;
strings[i] = new String(bytes);
}
return strings;
}
return null;
}
}
);
}
public void testWrongMetadataVersionBadMetadata2() throws Exception {
doTestKotlinLibraryWithWrongMetadataVersion(
"library",
new Function2<String, Object, Object>() {
@Override
public Object invoke(String name, Object value) {
if (JvmAnnotationNames.METADATA_STRINGS_FIELD_NAME.equals(name)) {
return ArrayUtil.EMPTY_STRING_ARRAY;
}
return null;
}
}
);
}
/*
// TODO: refactor and uncomment
public void testWrongMetadataVersionSkipVersionCheck() throws Exception {
doTestKotlinLibraryWithWrongMetadataVersion("library", "-Xskip-metadata-version-check");
doTestKotlinLibraryWithWrongMetadataVersion("library", null, "-Xskip-metadata-version-check");
}
*/