Java Code Examples for org.objectweb.asm.MethodVisitor#visitTryCatchBlock()
The following examples show how to use
org.objectweb.asm.MethodVisitor#visitTryCatchBlock() .
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Example 1
| Source File: WeavingClassVisitor.java From glowroot with Apache License 2.0 | 6 votes |
|
private static void addLoadClassConditional(MethodVisitor mv, Object[] locals) {
Label label0 = new Label();
Label label1 = new Label();
Label label2 = new Label();
mv.visitTryCatchBlock(label0, label1, label2, "java/lang/ClassNotFoundException");
mv.visitVarInsn(ALOAD, 1);
mv.visitLdcInsn("org.glowroot.agent");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "startsWith", "(Ljava/lang/String;)Z",
false);
Label label3 = new Label();
mv.visitJumpInsn(IFEQ, label3);
mv.visitLabel(label0);
mv.visitVarInsn(ALOAD, 1);
mv.visitInsn(ICONST_0);
mv.visitInsn(ACONST_NULL);
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Class", "forName",
"(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;", false);
mv.visitLabel(label1);
mv.visitInsn(ARETURN);
mv.visitLabel(label2);
mv.visitFrame(F_NEW, locals.length, locals, 1,
new Object[] {"java/lang/ClassNotFoundException"});
mv.visitInsn(POP);
mv.visitLabel(label3);
mv.visitFrame(F_NEW, locals.length, locals, 0, new Object[0]);
}
Example 2
| Source File: TryBlockImpl.java From gizmo with Apache License 2.0 | 6 votes |
|
@Override
protected void writeOperations(final MethodVisitor visitor) {
// this is everything between top & bottom labels
super.writeOperations(visitor);
// this is outside of the "try"
if (getTop().getOffset() != getBottom().getOffset()) {
// only generate catch blocks if the try body is non-empty
final Label foot = new Label();
visitor.visitJumpInsn(Opcodes.GOTO, foot);
for (Map.Entry<String, CatchBlockCreatorImpl> entry : catchBlocks.entrySet()) {
final CatchBlockCreatorImpl value = entry.getValue();
value.writeOperations(visitor);
visitor.visitJumpInsn(Opcodes.GOTO, foot);
visitor.visitTryCatchBlock(getTop(), getBottom(), value.getTop(), entry.getKey());
}
visitor.visitLabel(foot);
}
}
Example 3
| Source File: CompileStack.java From groovy with Apache License 2.0 | 5 votes |
|
public void writeExceptionTable(final BlockRecorder block, final Label goal, final String sig) {
if (block.isEmpty) return;
MethodVisitor mv = controller.getMethodVisitor();
for (LabelRange range : block.ranges) {
mv.visitTryCatchBlock(range.start, range.end, goal, sig);
}
}
Example 4
| Source File: LoopingExceptionStrippingVisitorTest.java From AVM with MIT License | 5 votes |
|
@Test
public void testNormalTryCatch() throws Exception {
String testClassName = "TestClass";
ClassWriter writer = new ClassWriter(0);
TryCatchCountingVisitor counter = new TryCatchCountingVisitor(writer);
LoopingExceptionStrippingVisitor visitor = new LoopingExceptionStrippingVisitor();
visitor.setDelegate(counter);
visitor.visit(Opcodes.V10, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, testClassName, null, "java/lang/Object", null);
// Create our labels.
Label start = new Label();
Label end = new Label();
Label handler = new Label();
String type = null;
// Write a target method.
MethodVisitor methodVisitor = visitor.visitMethod(Opcodes.ACC_STATIC, "targetMethod", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitInsn(Opcodes.ACONST_NULL);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitLabel(start);
methodVisitor.visitInsn(Opcodes.ACONST_NULL);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitLabel(end);
methodVisitor.visitLabel(handler);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitTryCatchBlock(start, end, handler, type);
methodVisitor.visitMaxs(1, 0);
methodVisitor.visitEnd();
// Finish.
visitor.visitEnd();
Assert.assertEquals(1, counter.counter);
}
Example 5
| Source File: LoopingExceptionStrippingVisitorTest.java From AVM with MIT License | 5 votes |
|
@Test
public void testBackwardFinally() throws Exception {
String testClassName = "TestClass";
ClassWriter writer = new ClassWriter(0);
TryCatchCountingVisitor counter = new TryCatchCountingVisitor(writer);
LoopingExceptionStrippingVisitor visitor = new LoopingExceptionStrippingVisitor();
visitor.setDelegate(counter);
visitor.visit(Opcodes.V10, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, testClassName, null, "java/lang/Object", null);
// Create our labels.
Label methodStart = new Label();
Label start = new Label();
Label end = new Label();
Label handler = new Label();
String type = null;
// Write a target method.
MethodVisitor methodVisitor = visitor.visitMethod(Opcodes.ACC_STATIC, "targetMethod", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitJumpInsn(Opcodes.GOTO, methodStart);
methodVisitor.visitLabel(handler);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitLabel(methodStart);
methodVisitor.visitInsn(Opcodes.ACONST_NULL);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitLabel(start);
methodVisitor.visitInsn(Opcodes.ACONST_NULL);
methodVisitor.visitInsn(Opcodes.POP);
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitLabel(end);
methodVisitor.visitTryCatchBlock(start, end, handler, type);
methodVisitor.visitMaxs(1, 0);
methodVisitor.visitEnd();
// Finish.
visitor.visitEnd();
Assert.assertEquals(0, counter.counter);
}
Example 6
| Source File: ExpressionHandler.java From yql-plus with Apache License 2.0 | 5 votes |
|
@Override
public BytecodeExpression fallback(Location loc, final BytecodeExpression primary, final BytecodeExpression caught) {
TypeWidget unified = unify(primary.getType(), caught.getType());
return new BaseTypeExpression(unified) {
@Override
public void generate(CodeEmitter code) {
MethodVisitor mv = code.getMethodVisitor();
final Label start = new Label();
final Label endCatch = new Label();
final Label handler = new Label();
Label done = new Label();
// this probably should not be catching throwable and instead should be catching Exception
// or permit certain Errors through only
mv.visitTryCatchBlock(start, endCatch, handler, "java/lang/Throwable");
mv.visitLabel(start);
code.exec(primary);
Label isNull = new Label();
boolean maybeNull = code.cast(getType(), primary.getType(), isNull);
mv.visitJumpInsn(Opcodes.GOTO, done);
mv.visitLabel(endCatch);
mv.visitLabel(handler);
mv.visitInsn(Opcodes.POP);
if (maybeNull) {
mv.visitLabel(isNull);
}
code.exec(caught);
code.cast(getType(), caught.getType());
mv.visitLabel(done);
}
};
}
Example 7
| Source File: CommonHelpers.java From HttpSessionReplacer with MIT License | 5 votes |
|
static void addIsServlet3(ClassVisitor cw) {
FieldVisitor fv = cw.visitField(ACC_PRIVATE + ACC_FINAL + ACC_STATIC, "$$isServlet3", "Z", null, null);
fv.visitEnd();
MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "$$isServlet3", "()Z", null, null);
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/NoSuchMethodException");
mv.visitLabel(l0);
mv.visitLineNumber(446, l0);
mv.visitLdcInsn(Type.getType("Ljavax/servlet/ServletRequest;"));
mv.visitLdcInsn("startAsync");
mv.visitInsn(ICONST_0);
mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod",
"(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", false);
mv.visitInsn(POP);
mv.visitLabel(l1);
mv.visitLineNumber(447, l1);
mv.visitInsn(ICONST_1);
mv.visitInsn(IRETURN);
mv.visitLabel(l2);
mv.visitLineNumber(448, l2);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/NoSuchMethodException" });
mv.visitVarInsn(ASTORE, 0);
Label l3 = new Label();
mv.visitLabel(l3);
mv.visitLineNumber(449, l3);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
Label l4 = new Label();
mv.visitLabel(l4);
mv.visitLocalVariable("e", "Ljava/lang/NoSuchMethodException;", null, l3, l4, 0);
mv.visitMaxs(3, 1);
mv.visitEnd();
}
Example 8
| Source File: TestThirdEnhance.java From jvm-sandbox with GNU Lesser General Public License v3.0 | 4 votes |
|
@Override
public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature,
final String[] exceptions) {
final MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
final String signCode = getBehaviorSignCode(name, desc);
if (!isMatchedBehavior(signCode)) {
return mv;
}
return new ThirdReWriteMethod(api, mv) {
@Override
public void visitInsn(final int opcode) {
switch (opcode) {
case RETURN:
case IRETURN:
case FRETURN:
case ARETURN:
case LRETURN:
case DRETURN:
onExit();
break;
default:
break;
}
super.visitInsn(opcode);
}
private void onExit() {
Label startTryBlock = new Label();
Label endTryBlock = new Label();
Label startCatchBlock = new Label();
Label endCatchBlock = new Label();
mv.visitLabel(startTryBlock);
//静态调用
Type type = Type.getType(Math.class);
String owner = type.getInternalName();
mv.visitMethodInsn(INVOKESTATIC, owner, method.getName(), method.getDescriptor(), false);
mv.visitInsn(POP2);
mv.visitLabel(endTryBlock);
mv.visitJumpInsn(GOTO,endCatchBlock);
mv.visitLabel(startCatchBlock);
mv.visitInsn(POP);
mv.visitLabel(endCatchBlock);
mv.visitTryCatchBlock(startTryBlock,endTryBlock,startCatchBlock,ASM_TYPE_THROWABLE.getInternalName());
}
};
}
Example 9
| Source File: ASMGen.java From beetl2.0 with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
public static byte[] dump() throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER,
"com/beetl/performance/lab/asm/UserAsmAccessor1", null,
"java/lang/Object",
new String[] { "com/beetl/performance/lab/asm/Access" });
{
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
"()V");
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cw.visitMethod(
ACC_PUBLIC,
"get",
"(Ljava/lang/Object;I)Ljava/lang/Object;",
null,
new String[] { "com/beetl/performance/lab/asm/ASMCastException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitInsn(ACONST_NULL);
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, "com/beetl/performance/lab/User");
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[] {
"com/beetl/performance/lab/asm/UserAsmAccessor",
"java/lang/Object", Opcodes.INTEGER,
"com/beetl/performance/lab/User" }, 1,
new Object[] { "java/lang/Exception" });
mv.visitVarInsn(ASTORE, 4);
mv.visitTypeInsn(NEW,
"com/beetl/performance/lab/asm/ASMCastException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL,
"com/beetl/performance/lab/asm/ASMCastException", "<init>",
"()V");
mv.visitInsn(ATHROW);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ILOAD, 2);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTableSwitchInsn(1, 2, l6, new Label[] { l4, l5 });
mv.visitLabel(l4);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getName", "()Ljava/lang/String;");
mv.visitInsn(ARETURN);
mv.visitLabel(l5);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getId", "()I");
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf",
"(I)Ljava/lang/Integer;");
mv.visitInsn(ARETURN);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException",
"<init>", "()V");
mv.visitInsn(ATHROW);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
Example 10
| Source File: TryCatchTests.java From Despector with MIT License | 4 votes |
|
@Test
public void testTryCatchNested() {
TestMethodBuilder builder = new TestMethodBuilder("test_mth", "()V");
MethodVisitor mv = builder.getGenerator();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
Label l3 = new Label();
Label l4 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitTryCatchBlock(l0, l3, l4, "java/lang/NullPointerException");
mv.visitLabel(l0);
mv.visitMethodInsn(INVOKESTATIC, THIS_TYPE.getInternalName(), "body", "()V", false);
mv.visitLabel(l1);
Label l5 = new Label();
mv.visitJumpInsn(GOTO, l5);
mv.visitLabel(l2);
mv.visitVarInsn(ASTORE, 3);
Label l6 = new Label();
mv.visitLabel(l6);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V", false);
mv.visitLabel(l3);
mv.visitJumpInsn(GOTO, l5);
mv.visitLabel(l4);
mv.visitVarInsn(ASTORE, 3);
Label l7 = new Label();
mv.visitLabel(l7);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/NullPointerException", "printStackTrace", "()V", false);
mv.visitLabel(l5);
mv.visitInsn(RETURN);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l6, l3, 3);
mv.visitLocalVariable("e", "Ljava/lang/NullPointerException;", null, l7, l5, 3);
String insn = TestHelper.getAsString(builder.finish(), "test_mth");
String good = "try {\n"
+ " try {\n"
+ " org.spongepowered.test.decompile.TryCatchTests.body();\n"
+ " } catch (Exception e) {\n"
+ " e.printStackTrace();\n"
+ " }\n"
+ "} catch (NullPointerException e) {\n"
+ " e.printStackTrace();\n"
+ "}";
Assert.assertEquals(good, insn);
}
Example 11
| Source File: ASMGen.java From beetl2.0 with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
public static byte[] dump() throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER,
"com/beetl/performance/lab/asm/UserAsmAccessor1", null,
"java/lang/Object",
new String[] { "com/beetl/performance/lab/asm/Access" });
{
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
"()V");
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cw.visitMethod(
ACC_PUBLIC,
"get",
"(Ljava/lang/Object;I)Ljava/lang/Object;",
null,
new String[] { "com/beetl/performance/lab/asm/ASMCastException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitInsn(ACONST_NULL);
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, "com/beetl/performance/lab/User");
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[] {
"com/beetl/performance/lab/asm/UserAsmAccessor",
"java/lang/Object", Opcodes.INTEGER,
"com/beetl/performance/lab/User" }, 1,
new Object[] { "java/lang/Exception" });
mv.visitVarInsn(ASTORE, 4);
mv.visitTypeInsn(NEW,
"com/beetl/performance/lab/asm/ASMCastException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL,
"com/beetl/performance/lab/asm/ASMCastException", "<init>",
"()V");
mv.visitInsn(ATHROW);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ILOAD, 2);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTableSwitchInsn(1, 2, l6, new Label[] { l4, l5 });
mv.visitLabel(l4);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getName", "()Ljava/lang/String;");
mv.visitInsn(ARETURN);
mv.visitLabel(l5);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getId", "()I");
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf",
"(I)Ljava/lang/Integer;");
mv.visitInsn(ARETURN);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException",
"<init>", "()V");
mv.visitInsn(ATHROW);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
Example 12
| Source File: TryCatchTests.java From Despector with MIT License | 4 votes |
|
@Test
public void testTryMultiCatch() {
TestMethodBuilder builder = new TestMethodBuilder("test_mth", "()V");
MethodVisitor mv = builder.getGenerator();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
Label l3 = new Label();
Label l4 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/NullPointerException");
mv.visitTryCatchBlock(l0, l1, l3, "java/lang/OutOfMemoryError");
mv.visitLabel(l0);
mv.visitMethodInsn(INVOKESTATIC, THIS_TYPE.getInternalName(), "body", "()V", false);
mv.visitLabel(l1);
mv.visitJumpInsn(GOTO, l4);
mv.visitLabel(l2);
mv.visitVarInsn(ASTORE, 2);
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/NullPointerException", "printStackTrace", "()V", false);
mv.visitJumpInsn(GOTO, l4);
mv.visitLabel(l3);
mv.visitVarInsn(ASTORE, 2);
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/OutOfMemoryError", "printStackTrace", "()V", false);
mv.visitLabel(l4);
mv.visitInsn(RETURN);
Label l5 = new Label();
mv.visitLabel(l5);
mv.visitLocalVariable("e", "Ljava/lang/NullPointerException;", null, l2, l3, 2);
mv.visitLocalVariable("e", "Ljava/lang/OutOfMemoryError;", null, l3, l4, 2);
String insn = TestHelper.getAsString(builder.finish(), "test_mth");
String good = "try {\n"
+ " org.spongepowered.test.decompile.TryCatchTests.body();\n"
+ "} catch (NullPointerException e) {\n"
+ " e.printStackTrace();\n"
+ "} catch (OutOfMemoryError e) {\n"
+ " e.printStackTrace();\n"
+ "}";
Assert.assertEquals(good, insn);
}
Example 13
| Source File: FilterAdapter.java From HttpSessionReplacer with MIT License | 4 votes |
|
/**
* This method injects new doFilter method into the class.
*/
private void addDoFilter() {
MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "doFilter",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V", null,
new String[] { "java/io/IOException", "javax/servlet/ServletException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
mv.visitTryCatchBlock(l0, l1, l1, null);
Label l2 = new Label();
mv.visitLabel(l2);
mv.visitLineNumber(1, l2);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ASTORE, 4);
Label l3 = new Label();
mv.visitLabel(l3);
mv.visitLineNumber(1, l3);
mv.visitVarInsn(ALOAD, 4);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_servletContext", "Ljavax/servlet/ServletContext;");
mv.visitMethodInsn(INVOKESTATIC, filterClass, "$$prepareRequest",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/ServletContext;)Ljavax/servlet/ServletRequest;",
false);
mv.visitVarInsn(ASTORE, 1);
Label l4 = new Label();
mv.visitLabel(l4);
mv.visitLineNumber(1, l4);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_servletContext", "Ljavax/servlet/ServletContext;");
mv.visitMethodInsn(INVOKESTATIC, filterClass, "$$prepareResponse",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/ServletContext;)Ljavax/servlet/ServletResponse;", false);
mv.visitVarInsn(ASTORE, 2);
mv.visitLabel(l0);
mv.visitLineNumber(1, l0);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, filterClass, "$$renamed_doFilter",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V", false);
Label l5 = new Label();
mv.visitLabel(l5);
mv.visitLineNumber(1, l5);
Label l6 = new Label();
mv.visitJumpInsn(GOTO, l6);
mv.visitLabel(l1);
mv.visitFrame(F_FULL, 5, new Object[] { filterClass, "javax/servlet/ServletRequest",
"javax/servlet/ServletResponse", "javax/servlet/FilterChain", "javax/servlet/ServletRequest" }, 1,
new Object[] { "java/lang/Throwable" });
mv.visitVarInsn(ASTORE, 5);
Label l7 = new Label();
mv.visitLabel(l7);
mv.visitLineNumber(1, l7);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 4);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_servletContext", "Ljavax/servlet/ServletContext;");
mv.visitMethodInsn(INVOKESTATIC, filterClass, "$$commitRequest",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletContext;)V", false);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitLineNumber(1, l8);
mv.visitVarInsn(ALOAD, 5);
mv.visitInsn(ATHROW);
mv.visitLabel(l6);
mv.visitLineNumber(1, l6);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 4);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_servletContext", "Ljavax/servlet/ServletContext;");
mv.visitMethodInsn(INVOKESTATIC, filterClass, "$$commitRequest",
"(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletContext;)V", false);
Label l9 = new Label();
mv.visitLabel(l9);
mv.visitLineNumber(1, l9);
mv.visitInsn(RETURN);
Label l10 = new Label();
mv.visitLabel(l10);
mv.visitLocalVariable("this", "L" + filterClass + ";", null, l2, l10, 0);
mv.visitLocalVariable("request", "Ljavax/servlet/ServletRequest;", null, l2, l10, 1);
mv.visitLocalVariable("response", "Ljavax/servlet/ServletResponse;", null, l2, l10, 2);
mv.visitLocalVariable("chain", "Ljavax/servlet/FilterChain;", null, l2, l10, 3);
mv.visitLocalVariable("oldRequest", "Ljavax/servlet/ServletRequest;", null, l3, l10, 4);
mv.visitMaxs(4, 6);
mv.visitEnd();
}
Example 14
| Source File: FilterAdapter.java From HttpSessionReplacer with MIT License | 4 votes |
|
private void addInitMethod() {
MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "init", "(Ljavax/servlet/FilterConfig;)V", null,
new String[] { "javax/servlet/ServletException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "javax/servlet/ServletException");
Label l3 = new Label();
mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Throwable");
Label l4 = new Label();
mv.visitLabel(l4);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, filterClass, "$$injected_initForSession", "(Ljavax/servlet/FilterConfig;)V", false);
Label l5 = new Label();
mv.visitLabel(l5);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_superInit", "Ljava/lang/invoke/MethodHandle;");
Label l6 = new Label();
mv.visitJumpInsn(IFNULL, l6);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, filterClass, "$$injected_superInit", "Ljava/lang/invoke/MethodHandle;");
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invokeExact",
"(L" + filterClass + ";Ljavax/servlet/FilterConfig;)V", false);
mv.visitLabel(l1);
mv.visitJumpInsn(GOTO, l6);
mv.visitLabel(l2);
mv.visitFrame(F_SAME1, 0, null, 1, new Object[] { "javax/servlet/ServletException" });
mv.visitVarInsn(ASTORE, 2);
Label l7 = new Label();
mv.visitLabel(l7);
mv.visitVarInsn(ALOAD, 2);
mv.visitInsn(ATHROW);
mv.visitLabel(l3);
mv.visitLineNumber(1, l3);
mv.visitFrame(F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
mv.visitVarInsn(ASTORE, 2);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitLineNumber(1, l8);
mv.visitVarInsn(ALOAD, 2);
mv.visitTypeInsn(INSTANCEOF, "java/lang/Error");
Label l9 = new Label();
mv.visitJumpInsn(IFEQ, l9);
Label l10 = new Label();
mv.visitLabel(l10);
mv.visitLineNumber(1, l10);
mv.visitVarInsn(ALOAD, 2);
mv.visitTypeInsn(CHECKCAST, "java/lang/Error");
mv.visitInsn(ATHROW);
mv.visitLabel(l9);
mv.visitLineNumber(1, l9);
mv.visitFrame(F_APPEND, 1, new Object[] { "java/lang/Throwable" }, 0, null);
mv.visitVarInsn(ALOAD, 2);
mv.visitTypeInsn(INSTANCEOF, "java/lang/RuntimeException");
Label l11 = new Label();
mv.visitJumpInsn(IFEQ, l11);
Label l12 = new Label();
mv.visitLabel(l12);
mv.visitLineNumber(1, l12);
mv.visitVarInsn(ALOAD, 2);
mv.visitTypeInsn(CHECKCAST, "java/lang/RuntimeException");
mv.visitInsn(ATHROW);
mv.visitLabel(l11);
mv.visitLineNumber(1, l11);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitTypeInsn(NEW, "javax/servlet/ServletException");
mv.visitInsn(DUP);
mv.visitLdcInsn("An exception occured while invoking super-class method init");
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKESPECIAL, "javax/servlet/ServletException", "<init>",
"(Ljava/lang/String;Ljava/lang/Throwable;)V", false);
mv.visitInsn(ATHROW);
mv.visitLabel(l6);
mv.visitLineNumber(1, l6);
mv.visitFrame(F_CHOP, 1, null, 0, null);
mv.visitInsn(RETURN);
Label l13 = new Label();
mv.visitLabel(l13);
mv.visitLocalVariable("this", "L" + filterClass + ";", null, l4, l13, 0);
mv.visitLocalVariable("config", "Ljavax/servlet/FilterConfig;", null, l4, l13, 1);
mv.visitLocalVariable("e", "Ljavax/servlet/ServletException;", null, l7, l3, 2);
mv.visitLocalVariable("e", "Ljava/lang/Throwable;", null, l8, l6, 2);
mv.visitMaxs(4, 3);
mv.visitEnd();
}
Example 15
| Source File: UnbalancedMonitorsTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
private static void visitWrongOrder(ClassWriter cw) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, "wrongOrder", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;", null, null);
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, null);
Label l3 = new Label();
mv.visitTryCatchBlock(l2, l3, l2, null);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTryCatchBlock(l4, l5, l6, null);
Label l7 = new Label();
mv.visitTryCatchBlock(l2, l7, l6, null);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitVarInsn(ALOAD, 1);
mv.visitInsn(DUP);
mv.visitVarInsn(ASTORE, 3);
mv.visitInsn(MONITORENTER);
mv.visitLabel(l4);
mv.visitVarInsn(ALOAD, 2);
mv.visitInsn(DUP);
mv.visitVarInsn(ASTORE, 4);
mv.visitInsn(MONITORENTER);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l1);
// Swapped exit order with exit above
mv.visitVarInsn(ALOAD, 4);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l5);
mv.visitInsn(ARETURN);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 5, new Object[]{INNER_CLASS_NAME_INTERNAL, "java/lang/Object", "java/lang/Object", "java/lang/Object",
"java/lang/Object"}, 1, new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ALOAD, 4);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l3);
mv.visitInsn(ATHROW);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[]{INNER_CLASS_NAME_INTERNAL, "java/lang/Object", "java/lang/Object", "java/lang/Object"}, 1,
new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l7);
mv.visitInsn(ATHROW);
Label l9 = new Label();
mv.visitLabel(l9);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
Example 16
| Source File: UnbalancedMonitorsTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
private static void visitBlockStructured(ClassWriter cw, boolean normalReturnError, boolean tooMany) {
String name = (tooMany ? "tooMany" : "tooFew") + "Exits" + (normalReturnError ? "" : "Exceptional");
// Generate too many or too few exits down the either the normal or exceptional return paths
int exceptionalExitCount = normalReturnError ? 1 : (tooMany ? 2 : 0);
int normalExitCount = normalReturnError ? (tooMany ? 2 : 0) : 1;
MethodVisitor mv;
mv = cw.visitMethod(ACC_PUBLIC, name, "(Ljava/lang/Object;Ljava/lang/Object;)Z", null, null);
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, null);
Label l3 = new Label();
mv.visitTryCatchBlock(l2, l3, l2, null);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTryCatchBlock(l4, l5, l6, null);
Label l7 = new Label();
mv.visitTryCatchBlock(l2, l7, l6, null);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitVarInsn(ALOAD, 1);
mv.visitInsn(DUP);
mv.visitVarInsn(ASTORE, 3);
mv.visitInsn(MONITORENTER);
mv.visitLabel(l4);
mv.visitVarInsn(ALOAD, 2);
mv.visitInsn(DUP);
mv.visitVarInsn(ASTORE, 4);
mv.visitInsn(MONITORENTER);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "equals", "(Ljava/lang/Object;)Z", false);
mv.visitVarInsn(ALOAD, 4);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l1);
for (int i = 0; i < normalExitCount; i++) {
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(MONITOREXIT);
}
mv.visitLabel(l5);
mv.visitInsn(IRETURN);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 5, new Object[]{INNER_CLASS_NAME_INTERNAL, "java/lang/Object", "java/lang/Object", "java/lang/Object",
"java/lang/Object"}, 1, new Object[]{"java/lang/Throwable"});
mv.visitVarInsn(ALOAD, 4);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l3);
mv.visitInsn(ATHROW);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[]{INNER_CLASS_NAME_INTERNAL, "java/lang/Object", "java/lang/Object", "java/lang/Object"}, 1,
new Object[]{"java/lang/Throwable"});
for (int i = 0; i < exceptionalExitCount; i++) {
mv.visitVarInsn(ALOAD, 3);
mv.visitInsn(MONITOREXIT);
}
mv.visitLabel(l7);
mv.visitInsn(ATHROW);
Label l9 = new Label();
mv.visitLabel(l9);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
Example 17
| Source File: TryCatchBlock.java From JQF with BSD 2-Clause "Simplified" License | 4 votes |
|
public void visit(MethodVisitor mv) {
mv.visitTryCatchBlock(label, label1, label2, type);
}
Example 18
| Source File: PlatformProviderGenerator.java From flogger with Apache License 2.0 | 4 votes |
|
private static void tryBlockForPlatform(MethodVisitor methodVisitor, String platformType) {
methodVisitor.visitCode();
// Generate the enveloping try/catch block:
//
// try {
// ...
// } catch (NoClassDefFoundError | IllegalAccessException | InstantiationException
// | InvocationTargetException | NoSuchMethodException e) {
// ...
// }
//
// Note that the exception types need to be listed explicitly (rather than using
// java.lang.ReflectiveOperationException) because that parent exception type isn't available
// on Android until API level 19.
Label startLabel = new Label();
Label endLabel = new Label();
Label handlerLabel = new Label();
methodVisitor.visitTryCatchBlock(
startLabel, endLabel, handlerLabel, "java/lang/NoClassDefFoundError");
methodVisitor.visitTryCatchBlock(
startLabel, endLabel, handlerLabel, "java/lang/IllegalAccessException");
methodVisitor.visitTryCatchBlock(
startLabel, endLabel, handlerLabel, "java/lang/InstantiationException");
methodVisitor.visitTryCatchBlock(
startLabel, endLabel, handlerLabel, "java/lang/reflect/InvocationTargetException");
methodVisitor.visitTryCatchBlock(
startLabel, endLabel, handlerLabel, "java/lang/NoSuchMethodException");
methodVisitor.visitLabel(startLabel);
// Generate the actual reflective constructor call inside the try block:
//
// return (Platform) PlatformClass.class.getDeclaredConstructor().newInstance();
//
// Note that the constructor call happens reflectively to make sure that the platform class
// isn't loaded until actually executing this instruction. That is important because an
// earlier class load could happen outside of the try/catch block where we are explicitly
// handling the case of the class not being present.
methodVisitor.visitLdcInsn(Type.getType(platformType));
methodVisitor.visitInsn(ICONST_0);
methodVisitor.visitTypeInsn(ANEWARRAY, "java/lang/Class");
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL,
"java/lang/Class",
"getDeclaredConstructor",
"([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;",
false);
methodVisitor.visitInsn(ICONST_0);
methodVisitor.visitTypeInsn(ANEWARRAY, "java/lang/Object");
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL,
"java/lang/reflect/Constructor",
"newInstance",
"([Ljava/lang/Object;)Ljava/lang/Object;",
false);
methodVisitor.visitTypeInsn(CHECKCAST, "com/google/common/flogger/backend/Platform");
methodVisitor.visitLabel(endLabel);
methodVisitor.visitInsn(ARETURN);
// Generate the catch block of the overall try/catch. The catch block is actually just empty,
// but Java does require the catch handler to have at least a frame in it to declare the
// exception variable that is available within the catch block scope:
// https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-3.html#jvms-3.12
methodVisitor.visitLabel(handlerLabel);
methodVisitor.visitFrame(F_SAME1, 0, null, 1, new Object[] {"java/lang/Throwable"});
methodVisitor.visitVarInsn(ASTORE, 0);
}
Example 19
| Source File: FMLPatcher.java From Launcher with GNU General Public License v3.0 | 4 votes |
|
private static byte[] gen(final String name, final String exName) { // "cpw/mods/fml/SafeExitJVMLegacy", "exit"
final ClassWriter classWriter = new ClassWriter(0);
MethodVisitor methodVisitor;
classWriter.visit(V1_8, ACC_PUBLIC | ACC_SUPER, name, null, "java/lang/Object", null);
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(1, 1);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, exName, "(I)V", null, null);
methodVisitor.visitCode();
final Label label0 = new Label();
final Label label1 = new Label();
final Label label2 = new Label();
methodVisitor.visitTryCatchBlock(label0, label1, label2, "java/lang/Throwable");
methodVisitor.visitLabel(label0);
methodVisitor.visitMethodInsn(INVOKESTATIC, "java/lang/Runtime", "getRuntime", "()Ljava/lang/Runtime;",
false);
methodVisitor.visitVarInsn(ILOAD, 0);
methodVisitor.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Runtime", "halt", "(I)V", false);
methodVisitor.visitLabel(label1);
final Label label3 = new Label();
methodVisitor.visitJumpInsn(GOTO, label3);
methodVisitor.visitLabel(label2);
methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"java/lang/Throwable"});
methodVisitor.visitVarInsn(ASTORE, 1);
methodVisitor.visitVarInsn(ILOAD, 0);
methodVisitor.visitMethodInsn(INVOKESTATIC, "java/lang/System", "exit", "(I)V", false);
methodVisitor.visitLabel(label3);
methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(2, 2);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
Example 20
| Source File: Globalizer.java From Concurnas with MIT License | 4 votes |
|
public void visitEnd() {
if(!visitedClinit ){//didnt have a clinit, so create a simple init and getter now...
if(!this.staticFinalVars.isEmpty()) {
addInitforStaticFinalVars();
createInializerAndSupportMethods(true);
}else {
createInializerAndSupportMethods(false);
}
//TODO: this code is only really useful in case where u do this class X{ fromouter = 99 class Y{ y = 1 + fromouter }} //since fromouter is from psar which is static...
addEmptyInit();
}
if(!shareInitsToMake.isEmpty()) {
String origClassName = this.fromName;//this.className.peek();
String globalClass = this.globName;//this.origClassClinitToNewOne.get(origClassName);
for(String sharedinit : shareInitsToMake) {
String initOnceVarName = sharedinit + "$onceVar";
{
FieldVisitor fv = super.visitField(ACC_PRIVATE + ACC_VOLATILE + ACC_STATIC, initOnceVarName, "Ljava/lang/Object;", null, null);
fv.visitEnd();
}
{
MethodVisitor mv = super.visitMethod(ACC_PUBLIC, sharedinit, "()V", null, null);
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, null);
Label l3 = new Label();
mv.visitTryCatchBlock(l2, l3, l2, null);
Label l4 = new Label();
mv.visitLabel(l4);
mv.visitFieldInsn(GETSTATIC, globalClass, initOnceVarName, "Ljava/lang/Object;");
Label l5 = new Label();
mv.visitJumpInsn(IFNONNULL, l5);
Label l6 = new Label();
mv.visitLabel(l6);
mv.visitVarInsn(ALOAD, 0);
mv.visitInsn(DUP);
mv.visitVarInsn(ASTORE, 1);
mv.visitInsn(MONITORENTER);
mv.visitLabel(l0);
mv.visitFieldInsn(GETSTATIC, globalClass, initOnceVarName, "Ljava/lang/Object;");
Label l7 = new Label();
mv.visitJumpInsn(IFNONNULL, l7);
Label l8 = new Label();
mv.visitLabel(l8);
mv.visitIntInsn(BIPUSH, 111);
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;", false);
mv.visitFieldInsn(PUTSTATIC, globalClass, initOnceVarName, "Ljava/lang/Object;");
Label l9 = new Label();
mv.visitLabel(l9);
mv.visitMethodInsn(INVOKESTATIC, origClassName, sharedinit, "()V", false);//this is called only once
mv.visitLabel(l7);
mv.visitVarInsn(ALOAD, 1);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l1);
mv.visitJumpInsn(GOTO, l5);
mv.visitLabel(l2);
mv.visitVarInsn(ALOAD, 1);
mv.visitInsn(MONITOREXIT);
mv.visitLabel(l3);
mv.visitInsn(ATHROW);
mv.visitLabel(l5);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 2);
mv.visitEnd();
}
}
}
super.visitEnd();
}
