/**
* In a class loaded by the subloader, calling a new method in a class loaded by the superloader
* using super<dot>. (ispcheck)
*/
@Test
public void reloadTargetInSuperLoaderCallingSuper() throws Exception {
String top = "superpkg.TopB";
String bot = "subpkg.BottomB";
ReloadableType rtypeA = subLoader.loadAsReloadableType(top);
ReloadableType rtypeB = subLoader.loadAsReloadableType(bot);
rtypeA.loadNewVersion("2", retrieveRename(top, top + "002"));
rtypeB.loadNewVersion("2", retrieveRename(bot, bot + "002", top + "002:" + top));
// Check the registry looks right for Top
int topId = NameRegistry.getIdFor("superpkg/TopB");
TypeRegistry trTop = TypeRegistry.getTypeRegistryFor(subLoader.getParent());
assertEquals(0, topId);
assertEquals(top, trTop.getReloadableType(topId).getName());
assertEquals(top, trTop.getReloadableType("superpkg/TopB").getName());
int bottomId = NameRegistry.getIdFor("subpkg/BottomB");
TypeRegistry trBot = TypeRegistry.getTypeRegistryFor(subLoader);
assertEquals(1, bottomId);
assertEquals(bot, trBot.getReloadableType(bottomId).getName());
assertEquals(bot, trBot.getReloadableType("subpkg/BottomB").getName());
// Now call the m() in the Bottom003 type, which calls super.newMethodOnTop()
result = runUnguarded(rtypeB.getClazz(), "m");
assertEquals("TopB002.m() running", result.stdout);
}
// Large scale test loading a bunch of types and verifying what happens in terms of tagging
@Test
public void verifyingAssociatedTypesInfo2() throws Exception {
// associatedtypes (top and middle) are in the super loader
// subassociatedtypes (bottom) are in the sub loader
ReloadableType bm = subLoader.loadAsReloadableType("associatedtypes.CM");
ReloadableType cm = subLoader.loadAsReloadableType("associatedtypes.CM");
assertNotNull(cm);
assertNotEquals(subLoader, cm.getClazz().getClassLoader());
ReloadableType im1 = subLoader.loadAsReloadableType("associatedtypes.IM");
assertNotNull(im1);
runUnguarded(cm.getClazz(), "run"); // Cause clinit to run so associations are setup
assertContains("associatedtypes.CM", toString(im1.getAssociatedSubtypes()));
assertFalse(cm.isAffectedByReload());
assertFalse(cm.isAffectedByReload());
assertFalse(bm.isAffectedByReload());
// Load CM again, should tag CM and IM
cm.loadNewVersion("2", cm.bytesInitial);
assertTrue(cm.isAffectedByReload());
assertTrue(im1.isAffectedByReload());
assertTrue(bm.isAffectedByReload());
}
/**
* In a class loaded by the subloader, calling a new STATIC method in a class loaded by the
* superloader. (istcheck)
*/
@Test
public void reloadTargetInSuperloaderCallingStaticMethod2() throws Exception {
// start out same as previous test, then loads a further version:
String target = "superpkg.TargetB";
String invoker = "subpkg.InvokerB";
ReloadableType targetR = subLoader.loadAsReloadableType(target);
ReloadableType invokerR = subLoader.loadAsReloadableType(invoker);
targetR.loadNewVersion("2", retrieveRename(target, target + "002"));
invokerR.loadNewVersion(
"2", retrieveRename(invoker, invoker + "002", target + "002:" + target));
// Now call the run() in the Invoker type, which calls 'Target.m()' where Target is in a
// different loader
// and has been reloaded
result = runUnguarded(invokerR.getClazz(), "run");
assertEquals("TargetB002.m() running", result.stdout);
// now new: load new version of target that is missing the method
targetR.loadNewVersion("3", targetR.bytesInitial);
try {
result = runUnguarded(invokerR.getClazz(), "run");
fail("");
} catch (InvocationTargetException ite) {
assertTrue(ite.getCause() instanceof NoSuchMethodError);
assertEquals("TargetB.m()V", ite.getCause().getMessage());
}
}
/**
* In a class loaded by the subloader, calling a new STATIC method in a class loaded by the
* superloader.
*/
@Test
public void reloadTargetInSuperloaderCallingStaticMethod() throws Exception {
String target = "superpkg.TargetB";
String invoker = "subpkg.InvokerB";
ReloadableType targetR = subLoader.loadAsReloadableType(target);
ReloadableType invokerR = subLoader.loadAsReloadableType(invoker);
targetR.loadNewVersion("2", retrieveRename(target, target + "002"));
invokerR.loadNewVersion(
"2", retrieveRename(invoker, invoker + "002", target + "002:" + target));
// Check the registry looks right for target
int targetId = NameRegistry.getIdFor(toSlash(target));
assertEquals(0, targetId);
TypeRegistry trtarget = TypeRegistry.getTypeRegistryFor(subLoader.getParent());
assertEquals(target, trtarget.getReloadableType(targetId).getName());
assertEquals(target, trtarget.getReloadableType(toSlash(target)).getName());
int invokerId = NameRegistry.getIdFor(toSlash(invoker));
TypeRegistry trinvokerR = TypeRegistry.getTypeRegistryFor(subLoader);
assertEquals(1, invokerId);
assertEquals(invoker, trinvokerR.getReloadableType(invokerId).getName());
assertEquals(invoker, trinvokerR.getReloadableType(toSlash(invoker)).getName());
// Now call the run() in the Invoker type, which calls 'Target.m()' where Target is in a
// different loader
// and has been reloaded
result = runUnguarded(invokerR.getClazz(), "run");
assertEquals("TargetB002.m() running", result.stdout);
}
/**
* hierarchy loaded across classloaders. <br>
* Top - all versions have a method 'm()'. v003 has method 'newMethodOnTop()'<br>
* Bottom - all versions have a method 'm()'. v003 version of m() calls 'super.newMethodOnTop()'
*/
@Ignore
// test currently failing because we cache the reloadable type descriptors in
// TypeRegistry.getDescriptorFor()
@Test
public void reloadSupertypeCalledThroughSubtype() throws Exception {
String top = "superpkg.Top";
String bot = "subpkg.Bottom";
ReloadableType rtypeA = subLoader.loadAsReloadableType(top);
ReloadableType rtypeB = subLoader.loadAsReloadableType(bot);
rtypeA.loadNewVersion("2", retrieveRename(top, top + "003"));
rtypeB.loadNewVersion("2", retrieveRename(bot, bot + "003", top + "003:" + top));
// Check the registry looks right for Top
int topId = NameRegistry.getIdFor("superpkg/Top");
TypeRegistry trTop = TypeRegistry.getTypeRegistryFor(subLoader.getParent());
assertEquals(0, topId);
assertEquals(top, trTop.getReloadableType(topId).getName());
assertEquals(top, trTop.getReloadableType("superpkg/Top").getName());
int bottomId = NameRegistry.getIdFor("subpkg/Bottom");
TypeRegistry trBot = TypeRegistry.getTypeRegistryFor(subLoader);
assertEquals(1, bottomId);
assertEquals(bot, trBot.getReloadableType(bottomId).getName());
assertEquals(bot, trBot.getReloadableType("subpkg/Bottom").getName());
// Now call the m() in the Bottom003 type, which calls super.newMethodOnTop()
result = runUnguarded(rtypeB.getClazz(), "m");
assertEquals("newMethodOnTop() running", result.stdout);
}
/** Check the basics - does the SubLoader/SuperLoader mechanism work. */
@Test
public void loadTypesAcrossLoaders() throws Exception {
ReloadableType rtypeA = subLoader.loadAsReloadableType("superpkg.Top");
result = runUnguarded(rtypeA.getClazz(), "m");
assertEquals("Top.m() running", result.stdout);
ReloadableType rtypeB = subLoader.loadAsReloadableType("subpkg.Bottom");
result = runUnguarded(rtypeB.getClazz(), "m");
assertEquals("Bottom.m() running", result.stdout);
assertNotSame(rtypeA.getTypeRegistry(), rtypeB.getTypeRegistry());
}
@Test
public void reloadSupertype() throws Exception {
ReloadableType rtypeA = subLoader.loadAsReloadableType("superpkg.Top");
subLoader.loadAsReloadableType("subpkg.Bottom");
result = runUnguarded(rtypeA.getClazz(), "m");
assertEquals("Top.m() running", result.stdout);
rtypeA.loadNewVersion("2", retrieveRename("superpkg.Top", "superpkg.Top002"));
result = runUnguarded(rtypeA.getClazz(), "m");
assertEquals("Top002.m() running", result.stdout);
}
@Test
public void github34() throws Exception {
ReloadableType rtypeA = subLoader.loadAsReloadableType("issue34.Implementation3");
result = runUnguarded(rtypeA.getClazz(), "run");
assertEquals("Hello World!", result.stdout);
// ReloadableType rtypeB = subLoader.loadAsReloadableType("subpkg.Bottom");
// result = runUnguarded(rtypeB.getClazz(), "m");
// assertEquals("Bottom.m() running", result.stdout);
// assertNotSame(rtypeA.getTypeRegistry(), rtypeB.getTypeRegistry());
}
/**
* This is testing field access when the value of the field is being checked against what is
* allowed to be returned. With multiple classloaders around this can get a little messy, say the
* method returns 'Serializable' but the actual method returns a type that the reloadable types
* classloader can't see (something from a subloader).<br>
* Heres a trace when things go wrong:
*
* <p>Caused by: org.springsource.loaded.UnableToLoadClassException: Unable to find data for class
* 'subpkg/Subby' at org.springsource.loaded.Utils.loadClassAsBytes2(Utils.java:763) <br>
* at org.springsource.loaded.TypeRegistry.getDescriptorFor(TypeRegistry.java:246) <br>
* at org.springsource.loaded.Utils.isAssignableFrom(Utils.java:1480) <br>
* at org.springsource.loaded.Utils.checkCompatibility(Utils.java:1460) <br>
* at org.springsource.loaded.ISMgr.getValue(ISMgr.java:125) <br>
* at superpkg.TargetD.r$get(TargetD.java) <br>
* at superpkg.TargetD$$E2.getOne(TargetD002.java:17) <br>
* at superpkg.TargetD$$D2.getOne(Unknown Source) <br>
* at superpkg.TargetD.getOne(TargetD.java) <br>
* at subpkg.InvokerD.run(InvokerD.java:8)
*/
@Test
public void reloadCheckingCompatibilityForReturnedFields() throws Exception {
// start out same as previous test, then loads a further version:
String target = "superpkg.TargetD";
String invoker = "subpkg.InvokerD";
ReloadableType targetR = subLoader.loadAsReloadableType(target);
ReloadableType invokerR = subLoader.loadAsReloadableType(invoker);
result = runUnguardedWithCCL(invokerR.getClazz(), subLoader, "run");
assertEquals("null", result.stdout);
targetR.loadNewVersion("2", retrieveRename(target, target + "002"));
// invokerR.loadNewVersion("2", retrieveRename(invoker, invoker + "002", target + "002:" +
// target));
// Now call the run() in the Invoker type, which calls 'Target.m()' where Target is in a
// different loader
// and has been reloaded
result = runUnguardedWithCCL(invokerR.getClazz(), subLoader, "run");
assertEquals("a subby", result.stdout);
}
// Avoiding fastclass in this test, one less thing to worry about
@Test
public void cglibProxiesAcrossLoader1() throws Exception {
binLoader =
new SubLoader(new String[] {}, new String[] {"../testdata/lib/cglib-nodep-2.2.jar"});
subLoader = (SubLoader) binLoader;
String t = "subpkg.ProxyTestcase";
ReloadableType proxyTestcaseR = subLoader.loadAsReloadableType(t);
result = runUnguarded(proxyTestcaseR.getClazz(), "run");
System.out.println(result);
result = runUnguarded(proxyTestcaseR.getClazz(), "getProxyLoader");
System.out.println(result.returnValue);
result = runUnguarded(proxyTestcaseR.getClazz(), "getSimpleLoader");
System.out.println(result.returnValue);
// Class<?> clazz = binLoader.loadClass(t);
//
// runMethodAndCollectOutput(clazz, "configureTest1");
//
// String output = runMethodAndCollectOutput(clazz, "run");
// // interception should have occurred and original should not have been run
// assertContains("[void example.Simple.moo()]", output);
// assertDoesNotContain("Simple.moo() running", output);
//
// // Check we loaded it as reloadable
// ReloadableType rtype =
// TypeRegistry.getTypeRegistryFor(binLoader).getReloadableType(toSlash(t), false);
// assertNotNull(rtype);
//
// // Check the incidental types were loaded as reloadable
// ReloadableType rtype2 =
// TypeRegistry.getTypeRegistryFor(binLoader).getReloadableType(toSlash("example.Simple"),
// false);
// assertNotNull(rtype2);
//
// rtype.loadNewVersion(retrieveRename(t, t + "2", "example.Simple2:example.Simple"));
// rtype2.loadNewVersion(retrieveRename("example.Simple", "example.Simple2"));
//
// // Now running 'boo()' which did not exist in the original. Remember this is invoked via
// proxy and so will only work
// // if the proxy was autoregenerated and reloaded!
// output = runMethodAndCollectOutput(clazz, "run");
// assertContains("[void example.Simple.boo()]", output);
// assertDoesNotContain("Simple2.boo running()", output);
}
@Test
public void superdispatchers() throws Exception {
String sub = "subpkg.Controller";
ReloadableType subR = subLoader.loadAsReloadableType(sub);
Result result = runOnInstance(subR.getClazz(), subR.getClazz().newInstance(), "foo");
assertEquals("grails.Top.foo() running\nsubpkg.ControllerB.foo() running", result.stdout);
// Reload the subtype
subR.loadNewVersion("2", retrieveRename(sub, sub + "002"));
result = runOnInstance(subR.getClazz(), subR.getClazz().newInstance(), "foo");
assertEquals(
"grails.Top.foo() running\nsubpkg.ControllerB.foo() running again!", result.stdout);
}
