2006-08-07 Gary Benson <gbenson@redhat.com>
+
+ PR libgcj/28340:
+ * java/lang/ClassLoader.java (clinit): Install a default
+ security manager if java.security.manager is defined.
+ (getParent, getSystemClassLoader): Use the correct stack
+ frame during security checks.
+ * java/net/URLClassLoader.java (findClass): Avoid calling
+ this.toString() during VM initialization.
+ (runtimeInitialized): New method.
+ * java/net/natURLClassLoader.cc: New file.
+ * Makefile.am (nat_source_files): Added the above.
+ * Makefile.in: Rebuilt.
+
+2006-08-07 Gary Benson <gbenson@redhat.com>
Casey Marshall <csm@gnu.org>
* java/lang/SecurityManager.java (getSecurityContext,
java/lang/reflect/natMethod.cc \
java/net/natVMNetworkInterface.cc \
java/net/natInetAddress.cc \
+java/net/natURLClassLoader.cc \
java/nio/channels/natVMChannels.cc \
java/nio/natDirectByteBufferImpl.cc \
java/security/natVMAccessController.cc \
java/lang/reflect/natConstructor.cc \
java/lang/reflect/natField.cc java/lang/reflect/natMethod.cc \
java/net/natVMNetworkInterface.cc java/net/natInetAddress.cc \
+ java/net/natURLClassLoader.cc \
java/nio/channels/natVMChannels.cc \
java/nio/natDirectByteBufferImpl.cc \
java/security/natVMAccessController.cc \
java/lang/reflect/natConstructor.lo \
java/lang/reflect/natField.lo java/lang/reflect/natMethod.lo \
java/net/natVMNetworkInterface.lo java/net/natInetAddress.lo \
+ java/net/natURLClassLoader.lo \
java/nio/channels/natVMChannels.lo \
java/nio/natDirectByteBufferImpl.lo \
java/security/natVMAccessController.lo \
build = @build@
build_alias = @build_alias@
build_cpu = @build_cpu@
+build_libsubdir = @build_libsubdir@
build_os = @build_os@
build_subdir = @build_subdir@
build_vendor = @build_vendor@
java/lang/reflect/natMethod.cc \
java/net/natVMNetworkInterface.cc \
java/net/natInetAddress.cc \
+java/net/natURLClassLoader.cc \
java/nio/channels/natVMChannels.cc \
java/nio/natDirectByteBufferImpl.cc \
java/security/natVMAccessController.cc \
java/net/$(DEPDIR)/$(am__dirstamp)
java/net/natInetAddress.lo: java/net/$(am__dirstamp) \
java/net/$(DEPDIR)/$(am__dirstamp)
+java/net/natURLClassLoader.lo: java/net/$(am__dirstamp) \
+ java/net/$(DEPDIR)/$(am__dirstamp)
java/nio/channels/$(am__dirstamp):
@$(mkdir_p) java/nio/channels
@: > java/nio/channels/$(am__dirstamp)
-rm -f java/lang/reflect/natMethod.lo
-rm -f java/net/natInetAddress.$(OBJEXT)
-rm -f java/net/natInetAddress.lo
+ -rm -f java/net/natURLClassLoader.$(OBJEXT)
+ -rm -f java/net/natURLClassLoader.lo
-rm -f java/net/natVMNetworkInterface.$(OBJEXT)
-rm -f java/net/natVMNetworkInterface.lo
-rm -f java/nio/channels/natVMChannels.$(OBJEXT)
@AMDEP_TRUE@@am__include@ @am__quote@java/lang/reflect/$(DEPDIR)/natField.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@java/lang/reflect/$(DEPDIR)/natMethod.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@java/net/$(DEPDIR)/natInetAddress.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@java/net/$(DEPDIR)/natURLClassLoader.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@java/net/$(DEPDIR)/natVMNetworkInterface.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@java/nio/$(DEPDIR)/natDirectByteBufferImpl.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@java/nio/channels/$(DEPDIR)/natVMChannels.Plo@am__quote@
package java.lang;
+import gnu.classpath.SystemProperties;
import gnu.java.util.DoubleEnumeration;
import gnu.java.util.EmptyEnumeration;
static final ClassLoader systemClassLoader =
VMClassLoader.getSystemClassLoader();
+ static
+ {
+ // Find out if we have to install a default security manager. Note
+ // that this is done here because we potentially need the system
+ // class loader to load the security manager and note also that we
+ // don't need the security manager until the system class loader
+ // is created. If the runtime chooses to use a class loader that
+ // doesn't have the system class loader as its parent, it is
+ // responsible for setting up a security manager before doing so.
+ String secman = SystemProperties.getProperty("java.security.manager");
+ if (secman != null && SecurityManager.current == null)
+ {
+ if (secman.equals("") || secman.equals("default"))
+ {
+ SecurityManager.current = new SecurityManager();
+ }
+ else
+ {
+ try
+ {
+ Class cl = Class.forName(secman, false, systemClassLoader);
+ SecurityManager.current = (SecurityManager) cl.newInstance();
+ }
+ catch (Exception x)
+ {
+ throw (InternalError)
+ new InternalError("Unable to create SecurityManager")
+ .initCause(x);
+ }
+ }
+ }
+ }
+
/**
* The default protection domain, used when defining a class with a null
* paramter for the domain.
SecurityManager sm = System.getSecurityManager();
if (sm != null)
{
- Class c = VMSecurityManager.getClassContext(ClassLoader.class)[1];
+ Class c = VMSecurityManager.getClassContext(ClassLoader.class)[0];
ClassLoader cl = c.getClassLoader();
if (cl != null && ! cl.isAncestorOf(this))
sm.checkPermission(new RuntimePermission("getClassLoader"));
SecurityManager sm = System.getSecurityManager();
if (sm != null)
{
- Class c = VMSecurityManager.getClassContext(ClassLoader.class)[1];
+ Class c = VMSecurityManager.getClassContext(ClassLoader.class)[0];
ClassLoader cl = c.getClassLoader();
if (cl != null && cl != systemClassLoader)
sm.checkPermission(new RuntimePermission("getClassLoader"));
resource = loader.getResource(resourceName);
}
if (resource == null)
- throw new ClassNotFoundException(className + " not found in " + this);
+ {
+ String message = className + " not found";
+ if (runtimeInitialized())
+ message += " in " + this;
+ throw new ClassNotFoundException(message);
+ }
// Try to read the class data, create the CodeSource, Package and
// construct the class (and watch out for those nasty IOExceptions)
return loader;
}
}
+
+ /**
+ * Tell whether runtime initialization is complete.
+ *
+ * @return whether runtime initialization is complete.
+ */
+ private static native boolean runtimeInitialized();
}
--- /dev/null
+// natURLClassLoader.cc -- Native part of the URLClassLoader class.
+
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+
+ This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+#include <config.h>
+
+#include <gcj/cni.h>
+#include <jvm.h>
+
+#include <java/net/URLClassLoader.h>
+
+jboolean
+java::net::URLClassLoader::runtimeInitialized ()
+{
+ return gcj::runtimeInitialized;
+}