[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.0.2:compile (default-compile) on project glowstone: Compilation failure: Compilation failure: [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\net\Session.java:[5,17] cannot find symbol [ERROR] symbol : class ArrayDeque [ERROR] location: package java.util [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\io\McRegionChunkIoService.java:[54,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\io\McRegionChunkIoService.java:[104,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\entity\EntityManager.java:[102,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\scheduler\GlowScheduler.java:[64,13] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\net\Session.java:[72,52] cannot find symbol [ERROR] symbol : class ArrayDeque [ERROR] location: class net.glowstone.net.Session [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\io\NbtChunkIoService.java:[15,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\io\NbtChunkIoService.java:[20,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\net\codec\CompressedChunkCodec.java:[46,18] cannot find symbol [ERROR] symbol : constructor IOException(java.lang.String,java.util.zip.DataFormatException) [ERROR] location: class java.io.IOException [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\net\MinecraftPipelineFactory.java:[28,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTInputStream.java:[74,19] cannot find symbol [ERROR] symbol : constructor String(byte[],java.nio.charset.Charset) [ERROR] location: class java.lang.String [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTInputStream.java:[128,39] cannot find symbol [ERROR] symbol : constructor String(byte[],java.nio.charset.Charset) [ERROR] location: class java.lang.String [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTInputStream.java:[166,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTOutputStream.java:[57,31] cannot find symbol [ERROR] symbol : method getBytes(java.nio.charset.Charset) [ERROR] location: class java.lang.String [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTOutputStream.java:[183,35] cannot find symbol [ERROR] symbol : method getBytes(java.nio.charset.Charset) [ERROR] location: class java.lang.String [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\nbt\NBTOutputStream.java:[242,5] method does not override a method from its superclass [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\ChannelBufferUtils.java:[129,26] cannot find symbol [ERROR] symbol : method getBytes(java.nio.charset.Charset) [ERROR] location: class java.lang.String [ERROR] [ERROR] c:\java\bukkitspace\Glowstone\src\main\java\net\glowstone\util\ChannelBufferUtils.java:[166,15] cannot find symbol [ERROR] symbol : constructor String(byte[],java.nio.charset.Charset) [ERROR] location: class java.lang.String [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 glowstone: Compilation failure at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 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:319) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) 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:101) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) ... 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