Description of problem:
Maven fails to build itself in local mode with compilation failures. 

[DEBUG]  /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/src/main/java
Compiling 26 source files to /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/target/classes
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Skipping Apache Maven 3.x
[INFO] This project has been banned from the build due to previous failures.
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Apache Maven 3.x .................................. SUCCESS [2.029s]
[INFO] Maven Model ....................................... SUCCESS [8.273s]
[INFO] Maven Settings .................................... SUCCESS [3.564s]
[INFO] Maven Settings Builder ............................ FAILURE [1.322s]
[INFO] Maven Repository Metadata Model ................... SKIPPED
[INFO] Maven Artifact .................................... SKIPPED
[INFO] Maven Plugin API .................................. SKIPPED
[INFO] Maven Model Builder ............................... SKIPPED
[INFO] Maven Aether Provider ............................. SKIPPED
[INFO] Maven Core ........................................ SKIPPED
[INFO] Maven Compat ...................................... SKIPPED
[INFO] Maven Embedder .................................... SKIPPED
[INFO] Maven Distribution ................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.241s
[INFO] Finished at: Wed Jan 12 17:26:41 CET 2011
[INFO] Final Memory: 26M/73M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.0.2:compile (default-compile) on project maven-settings-builder: Compilation failure: Compilation failure:
[ERROR] /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/src/main/java/org/apache/maven/settings/crypto/DefaultSettingsDecrypter.java:[56,27] clone() has protected access in java.lang.Object
[ERROR]
[ERROR] /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/src/main/java/org/apache/maven/settings/crypto/DefaultSettingsDecrypter.java:[56,33] incompatible types
[ERROR] found   : java.lang.Object
[ERROR] required: org.apache.maven.settings.Server
[ERROR]
[ERROR] /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/src/main/java/org/apache/maven/settings/crypto/DefaultSettingsDecrypter.java:[85,25] clone() has protected access in java.lang.Object
[ERROR]
[ERROR] /home/w0rm/temp/maven/apache-maven-3.0/maven-settings-builder/src/main/java/org/apache/maven/settings/crypto/DefaultSettingsDecrypter.java:[85,31] incompatible types
[ERROR] found   : java.lang.Object
[ERROR] required: org.apache.maven.settings.Proxy
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.0.2:compile (default-compile) on project maven-settings-builder: Compilation failure
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:199)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:315)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:132)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure
        at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:516)
        at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:114)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195)
        ... 19 more
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :maven-settings-builder
error: Bad exit status from /var/tmp/rpm-tmp.cvdqJk (%build)