gcj错误-找不到类java.util.function.Predicate的文件

我有一个java代码，我必须使用它作为外部库。 更具体地说，我需要这些导入：

import com.google.common.base.Charsets;
import com.google.common.hash.BloomFilter;
import com.google.common.hash.Funnel;
import com.google.common.hash.PrimitiveSink;

我构建了代码的jar文件，现在，我尝试使用

gcj

生成机器代码。 我测试了jar文件，它工作正常，并给出了输出。 但是，当尝试使用

gcj

编译和生成机器代码时，它会给我带来几个错误：

com/google/common/base/Predicate.java:0:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/Predicate.java: At top level:
com/google/common/base/Predicate.java:0:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/Predicate.java:0:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/Supplier.java: In class 'com.google.common.base.Absent':
com/google/common/base/Supplier.java: In method 'com.google.common.base.Absent.or(com.google.common.base.Supplier)':
In file included from com/google/common/base/Absent.java:60:0,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/Supplier.java:0:0: error: cannot find file for class java.util.function.Supplier
In file included from com/google/common/annotations/VisibleForTesting.java:2:0,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/Absent.java:60:0: error: cannot find file for class java.util.function.Supplier
com/google/common/base/Absent.java:60:0: error: cannot find file for class java.util.function.Supplier
com/google/common/base/Absent.java:60:0: error: cannot find file for class java.util.function.Supplier
com/google/common/base/Function.java: At top level:
In file included from com/google/common/base/Ascii.java:636:0,
                 from com/google/common/base/AbstractIterator.java:89,
                 from com/google/common/base/AbstractIterator.java:35,
                 from com/google/common/base/AbstractIterator.java:60,
                 from com/google/common/base/Absent.java:27,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/Function.java:0:0: error: cannot find file for class java.util.function.Function
In file included from com/google/common/base/Ascii.java:634:0,
                 from com/google/common/base/AbstractIterator.java:89,
                 from com/google/common/base/AbstractIterator.java:35,
                 from com/google/common/base/AbstractIterator.java:60,
                 from com/google/common/base/Absent.java:27,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java:0:0: error: cannot find file for class java.util.function.Function
In file included from com/google/common/base/Ascii.java:640:0,
                 from com/google/common/base/AbstractIterator.java:89,
                 from com/google/common/base/AbstractIterator.java:35,
                 from com/google/common/base/AbstractIterator.java:60,
                 from com/google/common/base/Absent.java:27,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/Converter.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/Converter.java:0:0: error: cannot find file for class java.util.function.Function
com/google/common/base/CaseFormat.java: In class 'com.google.common.base.CaseFormat':
com/google/common/base/CaseFormat.java: In method 'com.google.common.base.CaseFormat.convert(com.google.common.base.CaseFormat,java.lang.String)':
In file included from com/google/common/base/CaseFormat.java:155:0,
                 from com/google/common/base/CaseFormat.java:101,
                 from com/google/common/base/CaseFormat.java:82,
                 from com/google/common/base/CaseFormat.java:74,
                 from com/google/common/base/CaseFormat.java:66,
                 from com/google/common/base/CaseFormat.java:47,
                 from com/google/common/base/Ascii.java:641,
                 from com/google/common/base/AbstractIterator.java:89,
                 from com/google/common/base/AbstractIterator.java:35,
                 from com/google/common/base/AbstractIterator.java:60,
                 from com/google/common/base/Absent.java:27,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/CaseFormat.java:130:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/CaseFormat.java:130:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/CharMatcher.java: In class 'com.google.common.base.CharMatcher$And':
com/google/common/base/CharMatcher.java: In method 'negate()':
In file included from com/google/common/base/CharMatcher.java:616:0,
                 from com/google/common/base/CaseFormat.java:30,
                 from com/google/common/base/CaseFormat.java:155,
                 from com/google/common/base/CaseFormat.java:101,
                 from com/google/common/base/CaseFormat.java:82,
                 from com/google/common/base/CaseFormat.java:74,
                 from com/google/common/base/CaseFormat.java:66,
                 from com/google/common/base/CaseFormat.java:47,
                 from com/google/common/base/Ascii.java:641,
                 from com/google/common/base/AbstractIterator.java:89,
                 from com/google/common/base/AbstractIterator.java:35,
                 from com/google/common/base/AbstractIterator.java:60,
                 from com/google/common/base/Absent.java:27,
                 from com/google/common/annotations/VisibleForTesting.java:2,
                 from com/google/common/annotations/GwtIncompatible.java:1,
                 from com/google/common/annotations/GwtCompatible.java:1,
                 from com/google/common/annotations/Beta.java:1,
                 from bloomfilter/MultipleBloomFilterCheck.java:41,
                 from bloomfilter/MultipleBloomFilterCheck.java:100,
                 from bloomfilter/Main.java:25,
                 from <built-in>:3:
com/google/common/base/CharMatcher.java:1719:0: error: cannot find file for class java.util.function.Predicate
com/google/common/base/CharMatcher.java:1719: confused by earlier errors, bailing out

com/google/common/base/Predicate.java:0:0:错误：找不到类java.util.function.Predicate的文件
com/google/common/base/Predicate.java：顶层：
com/google/common/base/Predicate.java:0:0:error:找不到类java.util.function.Predicate的文件
com/google/common/base/Predicate.java:0:0:error:找不到类java.util.function.Predicate的文件
com/google/common/base/Supplier.java：在“com.google.common.base.缺席”类中：
com/google/common/base/Supplier.java：在方法“com.google.common.base.缺席”或（com.google.common.base.Supplier）”中：
在com/google/common/base/缺席.java:60:0中包含的文件中，
来自com/google/common/annotations/VisibleForTesting.java:2，
来自com/google/common/annotations/GwtIncompatible.java:1，
来自com/google/common/annotations/GwtCompatible.java:1，
来自com/google/common/annotations/Beta.java:1，
从bloomfilter/MultipleBloomFilterCheck.java:41，
从bloomfilter/MultipleBloomFilterCheck.java:100，
来自bloomfilter/Main.java:25，
发件人：3:
com/google/common/base/Supplier.java:0:0:错误：找不到类java.util.function.Supplier的文件
在com/google/common/annotations/VisibleForTesting.java:2:0中包含的文件中，
来自com/google/common/annotations/GwtIncompatible.java:1，
来自com/google/common/annotations/GwtCompatible.java:1，
来自com/google/common/annotations/Beta.java:1，
从bloomfilter/MultipleBloomFilterCheck.java:41，
从bloomfilter/MultipleBloomFilterCheck.java:100，
来自bloomfilter/Main.java:25，
发件人：3:
com/google/common/base/缺席。java:60:0:错误：找不到类java.util.function.Supplier的文件
com/google/common/base/缺席。java:60:0:错误：找不到类java.util.function.Supplier的文件
com/google/common/base/缺席。java:60:0:错误：找不到类java.util.function.Supplier的文件
com/google/common/base/Function.java：顶层：
在com/google/common/base/Ascii.java:636:0中包含的文件中，
来自com/google/common/base/AbstractIterator.java:89，
来自com/google/common/base/AbstractIterator.java:35，
来自com/google/common/base/AbstractIterator.java:60，
来自com/google/common/base/缺席.java:27，
来自com/google/common/annotations/VisibleForTesting.java:2，
来自com/google/common/annotations/GwtIncompatible.java:1，
来自com/google/common/annotations/GwtCompatible.java:1，
来自com/google/common/annotations/Beta.java:1，
从bloomfilter/MultipleBloomFilterCheck.java:41，
从bloomfilter/MultipleBloomFilterCheck.java:100，
来自bloomfilter/Main.java:25，
发件人：3:
com/google/common/base/Function.java:0:0:错误：找不到类java.util.Function.Function的文件
在com/google/common/base/Ascii.java:634:0中包含的文件中，
来自com/google/common/base/AbstractIterator.java:89，
来自com/google/common/base/AbstractIterator.java:35，
来自com/google/common/base/AbstractIterator.java:60，
来自com/google/common/base/缺席.java:27，
来自com/google/common/annotations/VisibleForTesting.java:2，
来自com/google/common/annotations/GwtIncompatible.java:1，
来自com/google/common/annotations/GwtCompatible.java:1，
来自com/google/common/annotations/Beta.java:1，
从bloomfilter/MultipleBloomFilterCheck.java:41，
从bloomfilter/MultipleBloomFilterCheck.java:100，
来自bloomfilter/Main.java:25，
发件人：3:
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/CaseFormat.java:0:0:错误：找不到类java.util.function.function的文件
在com/google/common/base/Ascii.java:640:0中包含的文件中，
来自com/google/common/base/AbstractIterator.java:89，
来自com/google/common/base/AbstractIterator.java:35，
来自com/google/common/base/AbstractIterator.java:60，
来自com/google/common/base/缺席.java:27，
来自com/google/common/annotations/VisibleForTesting.java:2，
来自com/google/common/annotations/GwtIncompatible.java:1，
来自com/google/common/annotations/GwtCompatible.java:1，
来自com/google/common/annotations/Beta.java:1，
从bloomfilter/MultipleBloomFilterCheck.java:41，
从bloomfilter/MultipleBloomFilterCheck.java:100，
来自bloomfilter/Main.java:25，
发件人：3:
com/google/common/base/Converter.java:0:0:错误：找不到类java.util.function.function的文件
com/google/common/base/Converte